Move USB Host Shield and Arduino core to `lib/` (#13973)

36 files changed, 7264 insertions, 0 deletions

diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/Arduino.h b/lib/usbhost/arduino-1.0.1/cores/arduino/Arduino.h
new file mode 100644
index 0000000000..830c9952fb
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/Arduino.h
@@ -0,0 +1,215 @@
+#ifndef Arduino_h
+#define Arduino_h
+
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#include <avr/pgmspace.h>
+#include <avr/io.h>
+#include <avr/interrupt.h>
+
+#include "binary.h"
+
+#ifdef __cplusplus
+extern "C"{
+#endif
+
+#define HIGH 0x1
+#define LOW  0x0
+
+#define INPUT 0x0
+#define OUTPUT 0x1
+#define INPUT_PULLUP 0x2
+
+#define true 0x1
+#define false 0x0
+
+#define PI 3.1415926535897932384626433832795
+#define HALF_PI 1.5707963267948966192313216916398
+#define TWO_PI 6.283185307179586476925286766559
+#define DEG_TO_RAD 0.017453292519943295769236907684886
+#define RAD_TO_DEG 57.295779513082320876798154814105
+
+#define SERIAL  0x0
+#define DISPLAY 0x1
+
+#define LSBFIRST 0
+#define MSBFIRST 1
+
+#define CHANGE 1
+#define FALLING 2
+#define RISING 3
+
+#if defined(__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny25__) || defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
+#define DEFAULT 0
+#define EXTERNAL 1
+#define INTERNAL 2
+#else  
+#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) || defined(__AVR_ATmega1284P__) 
+#define INTERNAL1V1 2
+#define INTERNAL2V56 3
+#else
+#define INTERNAL 3
+#endif
+#define DEFAULT 1
+#define EXTERNAL 0
+#endif
+
+// undefine stdlib's abs if encountered
+#ifdef abs
+#undef abs
+#endif
+
+#define min(a,b) ((a)<(b)?(a):(b))
+#define max(a,b) ((a)>(b)?(a):(b))
+#define abs(x) ((x)>0?(x):-(x))
+#define constrain(amt,low,high) ((amt)<(low)?(low):((amt)>(high)?(high):(amt)))
+#define round(x)     ((x)>=0?(long)((x)+0.5):(long)((x)-0.5))
+#define radians(deg) ((deg)*DEG_TO_RAD)
+#define degrees(rad) ((rad)*RAD_TO_DEG)
+#define sq(x) ((x)*(x))
+
+#define interrupts() sei()
+#define noInterrupts() cli()
+
+#define clockCyclesPerMicrosecond() ( F_CPU / 1000000L )
+#define clockCyclesToMicroseconds(a) ( (a) / clockCyclesPerMicrosecond() )
+#define microsecondsToClockCycles(a) ( (a) * clockCyclesPerMicrosecond() )
+
+#define lowByte(w) ((uint8_t) ((w) & 0xff))
+#define highByte(w) ((uint8_t) ((w) >> 8))
+
+#define bitRead(value, bit) (((value) >> (bit)) & 0x01)
+#define bitSet(value, bit) ((value) |= (1UL << (bit)))
+#define bitClear(value, bit) ((value) &= ~(1UL << (bit)))
+#define bitWrite(value, bit, bitvalue) (bitvalue ? bitSet(value, bit) : bitClear(value, bit))
+
+
+typedef unsigned int word;
+
+#define bit(b) (1UL << (b))
+
+typedef uint8_t boolean;
+typedef uint8_t byte;
+
+void init(void);
+
+void pinMode(uint8_t, uint8_t);
+void digitalWrite(uint8_t, uint8_t);
+int digitalRead(uint8_t);
+int analogRead(uint8_t);
+void analogReference(uint8_t mode);
+void analogWrite(uint8_t, int);
+
+unsigned long millis(void);
+unsigned long micros(void);
+void delay(unsigned long);
+void delayMicroseconds(unsigned int us);
+unsigned long pulseIn(uint8_t pin, uint8_t state, unsigned long timeout);
+
+void shiftOut(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder, uint8_t val);
+uint8_t shiftIn(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder);
+
+void attachInterrupt(uint8_t, void (*)(void), int mode);
+void detachInterrupt(uint8_t);
+
+void setup(void);
+void loop(void);
+
+// Get the bit location within the hardware port of the given virtual pin.
+// This comes from the pins_*.c file for the active board configuration.
+
+#define analogInPinToBit(P) (P)
+
+// On the ATmega1280, the addresses of some of the port registers are
+// greater than 255, so we can't store them in uint8_t's.
+extern const uint16_t PROGMEM port_to_mode_PGM[];
+extern const uint16_t PROGMEM port_to_input_PGM[];
+extern const uint16_t PROGMEM port_to_output_PGM[];
+
+extern const uint8_t PROGMEM digital_pin_to_port_PGM[];
+// extern const uint8_t PROGMEM digital_pin_to_bit_PGM[];
+extern const uint8_t PROGMEM digital_pin_to_bit_mask_PGM[];
+extern const uint8_t PROGMEM digital_pin_to_timer_PGM[];
+
+// Get the bit location within the hardware port of the given virtual pin.
+// This comes from the pins_*.c file for the active board configuration.
+// 
+// These perform slightly better as macros compared to inline functions
+//
+#define digitalPinToPort(P) ( pgm_read_byte( digital_pin_to_port_PGM + (P) ) )
+#define digitalPinToBitMask(P) ( pgm_read_byte( digital_pin_to_bit_mask_PGM + (P) ) )
+#define digitalPinToTimer(P) ( pgm_read_byte( digital_pin_to_timer_PGM + (P) ) )
+#define analogInPinToBit(P) (P)
+#define portOutputRegister(P) ( (volatile uint8_t *)( pgm_read_word( port_to_output_PGM + (P))) )
+#define portInputRegister(P) ( (volatile uint8_t *)( pgm_read_word( port_to_input_PGM + (P))) )
+#define portModeRegister(P) ( (volatile uint8_t *)( pgm_read_word( port_to_mode_PGM + (P))) )
+
+#define NOT_A_PIN 0
+#define NOT_A_PORT 0
+
+#ifdef ARDUINO_MAIN
+#define PA 1
+#define PB 2
+#define PC 3
+#define PD 4
+#define PE 5
+#define PF 6
+#define PG 7
+#define PH 8
+#define PJ 10
+#define PK 11
+#define PL 12
+#endif
+
+#define NOT_ON_TIMER 0
+#define TIMER0A 1
+#define TIMER0B 2
+#define TIMER1A 3
+#define TIMER1B 4
+#define TIMER2  5
+#define TIMER2A 6
+#define TIMER2B 7
+
+#define TIMER3A 8
+#define TIMER3B 9
+#define TIMER3C 10
+#define TIMER4A 11
+#define TIMER4B 12
+#define TIMER4C 13
+#define TIMER4D 14	
+#define TIMER5A 15
+#define TIMER5B 16
+#define TIMER5C 17
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#ifdef __cplusplus
+#include "WCharacter.h"
+#include "WString.h"
+#include "HardwareSerial.h"
+
+uint16_t makeWord(uint16_t w);
+uint16_t makeWord(byte h, byte l);
+
+#define word(...) makeWord(__VA_ARGS__)
+
+unsigned long pulseIn(uint8_t pin, uint8_t state, unsigned long timeout = 1000000L);
+
+void tone(uint8_t _pin, unsigned int frequency, unsigned long duration = 0);
+void noTone(uint8_t _pin);
+
+// WMath prototypes
+long random(long);
+long random(long, long);
+void randomSeed(unsigned int);
+long map(long, long, long, long, long);
+
+#endif
+
+#include "pins_arduino.h"
+
+#endif
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/CDC.cpp b/lib/usbhost/arduino-1.0.1/cores/arduino/CDC.cpp
new file mode 100644
index 0000000000..1ee3a488a5
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/CDC.cpp
@@ -0,0 +1,233 @@
+
+
+/* Copyright (c) 2011, Peter Barrett  
+**  
+** Permission to use, copy, modify, and/or distribute this software for  
+** any purpose with or without fee is hereby granted, provided that the  
+** above copyright notice and this permission notice appear in all copies.  
+** 
+** THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL  
+** WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED  
+** WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR  
+** BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES  
+** OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,  
+** WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,  
+** ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS  
+** SOFTWARE.  
+*/
+
+#include "Platform.h"
+#include "USBAPI.h"
+#include <avr/wdt.h>
+
+#if defined(USBCON)
+#ifdef CDC_ENABLED
+
+#if (RAMEND < 1000)
+#define SERIAL_BUFFER_SIZE 16
+#else
+#define SERIAL_BUFFER_SIZE 64
+#endif
+
+struct ring_buffer
+{
+	unsigned char buffer[SERIAL_BUFFER_SIZE];
+	volatile int head;
+	volatile int tail;
+};
+
+ring_buffer cdc_rx_buffer = { { 0 }, 0, 0};
+
+typedef struct
+{
+	u32	dwDTERate;
+	u8	bCharFormat;
+	u8 	bParityType;
+	u8 	bDataBits;
+	u8	lineState;
+} LineInfo;
+
+static volatile LineInfo _usbLineInfo = { 57600, 0x00, 0x00, 0x00, 0x00 };
+
+#define WEAK __attribute__ ((weak))
+
+extern const CDCDescriptor _cdcInterface PROGMEM;
+const CDCDescriptor _cdcInterface =
+{
+	D_IAD(0,2,CDC_COMMUNICATION_INTERFACE_CLASS,CDC_ABSTRACT_CONTROL_MODEL,1),
+
+	//	CDC communication interface
+	D_INTERFACE(CDC_ACM_INTERFACE,1,CDC_COMMUNICATION_INTERFACE_CLASS,CDC_ABSTRACT_CONTROL_MODEL,0),
+	D_CDCCS(CDC_HEADER,0x10,0x01),								// Header (1.10 bcd)
+	D_CDCCS(CDC_CALL_MANAGEMENT,1,1),							// Device handles call management (not)
+	D_CDCCS4(CDC_ABSTRACT_CONTROL_MANAGEMENT,6),				// SET_LINE_CODING, GET_LINE_CODING, SET_CONTROL_LINE_STATE supported
+	D_CDCCS(CDC_UNION,CDC_ACM_INTERFACE,CDC_DATA_INTERFACE),	// Communication interface is master, data interface is slave 0
+	D_ENDPOINT(USB_ENDPOINT_IN (CDC_ENDPOINT_ACM),USB_ENDPOINT_TYPE_INTERRUPT,0x10,0x40),
+
+	//	CDC data interface
+	D_INTERFACE(CDC_DATA_INTERFACE,2,CDC_DATA_INTERFACE_CLASS,0,0),
+	D_ENDPOINT(USB_ENDPOINT_OUT(CDC_ENDPOINT_OUT),USB_ENDPOINT_TYPE_BULK,0x40,0),
+	D_ENDPOINT(USB_ENDPOINT_IN (CDC_ENDPOINT_IN ),USB_ENDPOINT_TYPE_BULK,0x40,0)
+};
+
+int WEAK CDC_GetInterface(u8* interfaceNum)
+{
+	interfaceNum[0] += 2;	// uses 2
+	return USB_SendControl(TRANSFER_PGM,&_cdcInterface,sizeof(_cdcInterface));
+}
+
+bool WEAK CDC_Setup(Setup& setup)
+{
+	u8 r = setup.bRequest;
+	u8 requestType = setup.bmRequestType;
+
+	if (REQUEST_DEVICETOHOST_CLASS_INTERFACE == requestType)
+	{
+		if (CDC_GET_LINE_CODING == r)
+		{
+			USB_SendControl(0,(void*)&_usbLineInfo,7);
+			return true;
+		}
+	}
+
+	if (REQUEST_HOSTTODEVICE_CLASS_INTERFACE == requestType)
+	{
+		if (CDC_SET_LINE_CODING == r)
+		{
+			USB_RecvControl((void*)&_usbLineInfo,7);
+			return true;
+		}
+
+		if (CDC_SET_CONTROL_LINE_STATE == r)
+		{
+			_usbLineInfo.lineState = setup.wValueL;
+
+			// auto-reset into the bootloader is triggered when the port, already 
+			// open at 1200 bps, is closed.  this is the signal to start the watchdog
+			// with a relatively long period so it can finish housekeeping tasks
+			// like servicing endpoints before the sketch ends
+			if (1200 == _usbLineInfo.dwDTERate) {
+				// We check DTR state to determine if host port is open (bit 0 of lineState).
+				if ((_usbLineInfo.lineState & 0x01) == 0) {
+					*(uint16_t *)0x0800 = 0x7777;
+					wdt_enable(WDTO_120MS);
+				} else {
+					// Most OSs do some intermediate steps when configuring ports and DTR can
+					// twiggle more than once before stabilizing.
+					// To avoid spurious resets we set the watchdog to 250ms and eventually
+					// cancel if DTR goes back high.
+	
+					wdt_disable();
+					wdt_reset();
+					*(uint16_t *)0x0800 = 0x0;
+				}
+			}
+			return true;
+		}
+	}
+	return false;
+}
+
+
+int _serialPeek = -1;
+void Serial_::begin(uint16_t baud_count)
+{
+}
+
+void Serial_::end(void)
+{
+}
+
+void Serial_::accept(void) 
+{
+	ring_buffer *buffer = &cdc_rx_buffer;
+	int c = USB_Recv(CDC_RX); 
+	int i = (unsigned int)(buffer->head+1) % SERIAL_BUFFER_SIZE;
+	
+	// if we should be storing the received character into the location
+	// just before the tail (meaning that the head would advance to the
+	// current location of the tail), we're about to overflow the buffer
+	// and so we don't write the character or advance the head.
+	if (i != buffer->tail) {
+		buffer->buffer[buffer->head] = c;
+		buffer->head = i;
+	}
+}
+
+int Serial_::available(void)
+{
+	ring_buffer *buffer = &cdc_rx_buffer;
+	return (unsigned int)(SERIAL_BUFFER_SIZE + buffer->head - buffer->tail) % SERIAL_BUFFER_SIZE;
+}
+
+int Serial_::peek(void)
+{
+	ring_buffer *buffer = &cdc_rx_buffer;
+	if (buffer->head == buffer->tail) {
+		return -1;
+	} else {
+		return buffer->buffer[buffer->tail];
+	}
+}
+
+int Serial_::read(void)
+{
+	ring_buffer *buffer = &cdc_rx_buffer;
+	// if the head isn't ahead of the tail, we don't have any characters
+	if (buffer->head == buffer->tail) {
+		return -1;
+	} else {
+		unsigned char c = buffer->buffer[buffer->tail];
+		buffer->tail = (unsigned int)(buffer->tail + 1) % SERIAL_BUFFER_SIZE;
+		return c;
+	}	
+}
+
+void Serial_::flush(void)
+{
+	USB_Flush(CDC_TX);
+}
+
+size_t Serial_::write(uint8_t c)
+{
+	/* only try to send bytes if the high-level CDC connection itself 
+	 is open (not just the pipe) - the OS should set lineState when the port
+	 is opened and clear lineState when the port is closed.
+	 bytes sent before the user opens the connection or after
+	 the connection is closed are lost - just like with a UART. */
+	
+	// TODO - ZE - check behavior on different OSes and test what happens if an
+	// open connection isn't broken cleanly (cable is yanked out, host dies
+	// or locks up, or host virtual serial port hangs)
+	if (_usbLineInfo.lineState > 0)	{
+		int r = USB_Send(CDC_TX,&c,1);
+		if (r > 0) {
+			return r;
+		} else {
+			setWriteError();
+			return 0;
+		}
+	}
+	setWriteError();
+	return 0;
+}
+
+// This operator is a convenient way for a sketch to check whether the
+// port has actually been configured and opened by the host (as opposed
+// to just being connected to the host).  It can be used, for example, in 
+// setup() before printing to ensure that an application on the host is
+// actually ready to receive and display the data.
+// We add a short delay before returning to fix a bug observed by Federico
+// where the port is configured (lineState != 0) but not quite opened.
+Serial_::operator bool() {
+	bool result = false;
+	if (_usbLineInfo.lineState > 0) 
+		result = true;
+	delay(10);
+	return result;
+}
+
+Serial_ Serial;
+
+#endif
+#endif /* if defined(USBCON) */
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/Client.h b/lib/usbhost/arduino-1.0.1/cores/arduino/Client.h
new file mode 100644
index 0000000000..ea134838a2
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/Client.h
@@ -0,0 +1,26 @@
+#ifndef client_h
+#define client_h
+#include "Print.h"
+#include "Stream.h"
+#include "IPAddress.h"
+
+class Client : public Stream {
+
+public:
+  virtual int connect(IPAddress ip, uint16_t port) =0;
+  virtual int connect(const char *host, uint16_t port) =0;
+  virtual size_t write(uint8_t) =0;
+  virtual size_t write(const uint8_t *buf, size_t size) =0;
+  virtual int available() = 0;
+  virtual int read() = 0;
+  virtual int read(uint8_t *buf, size_t size) = 0;
+  virtual int peek() = 0;
+  virtual void flush() = 0;
+  virtual void stop() = 0;
+  virtual uint8_t connected() = 0;
+  virtual operator bool() = 0;
+protected:
+  uint8_t* rawIPAddress(IPAddress& addr) { return addr.raw_address(); };
+};
+
+#endif
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/HID.cpp b/lib/usbhost/arduino-1.0.1/cores/arduino/HID.cpp
new file mode 100644
index 0000000000..ac63608449
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/HID.cpp
@@ -0,0 +1,520 @@
+
+
+/* Copyright (c) 2011, Peter Barrett  
+**  
+** Permission to use, copy, modify, and/or distribute this software for  
+** any purpose with or without fee is hereby granted, provided that the  
+** above copyright notice and this permission notice appear in all copies.  
+** 
+** THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL  
+** WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED  
+** WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR  
+** BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES  
+** OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,  
+** WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,  
+** ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS  
+** SOFTWARE.  
+*/
+
+#include "Platform.h"
+#include "USBAPI.h"
+#include "USBDesc.h"
+
+#if defined(USBCON)
+#ifdef HID_ENABLED
+
+//#define RAWHID_ENABLED
+
+//	Singletons for mouse and keyboard
+
+Mouse_ Mouse;
+Keyboard_ Keyboard;
+
+//================================================================================
+//================================================================================
+
+//	HID report descriptor
+
+#define LSB(_x) ((_x) & 0xFF)
+#define MSB(_x) ((_x) >> 8)
+
+#define RAWHID_USAGE_PAGE	0xFFC0
+#define RAWHID_USAGE		0x0C00
+#define RAWHID_TX_SIZE 64
+#define RAWHID_RX_SIZE 64
+
+extern const u8 _hidReportDescriptor[] PROGMEM;
+const u8 _hidReportDescriptor[] = {
+	
+	//	Mouse
+    0x05, 0x01,                    // USAGE_PAGE (Generic Desktop)	// 54
+    0x09, 0x02,                    // USAGE (Mouse)
+    0xa1, 0x01,                    // COLLECTION (Application)
+    0x09, 0x01,                    //   USAGE (Pointer)
+    0xa1, 0x00,                    //   COLLECTION (Physical)
+    0x85, 0x01,                    //     REPORT_ID (1)
+    0x05, 0x09,                    //     USAGE_PAGE (Button)
+    0x19, 0x01,                    //     USAGE_MINIMUM (Button 1)
+    0x29, 0x03,                    //     USAGE_MAXIMUM (Button 3)
+    0x15, 0x00,                    //     LOGICAL_MINIMUM (0)
+    0x25, 0x01,                    //     LOGICAL_MAXIMUM (1)
+    0x95, 0x03,                    //     REPORT_COUNT (3)
+    0x75, 0x01,                    //     REPORT_SIZE (1)
+    0x81, 0x02,                    //     INPUT (Data,Var,Abs)
+    0x95, 0x01,                    //     REPORT_COUNT (1)
+    0x75, 0x05,                    //     REPORT_SIZE (5)
+    0x81, 0x03,                    //     INPUT (Cnst,Var,Abs)
+    0x05, 0x01,                    //     USAGE_PAGE (Generic Desktop)
+    0x09, 0x30,                    //     USAGE (X)
+    0x09, 0x31,                    //     USAGE (Y)
+    0x09, 0x38,                    //     USAGE (Wheel)
+    0x15, 0x81,                    //     LOGICAL_MINIMUM (-127)
+    0x25, 0x7f,                    //     LOGICAL_MAXIMUM (127)
+    0x75, 0x08,                    //     REPORT_SIZE (8)
+    0x95, 0x03,                    //     REPORT_COUNT (3)
+    0x81, 0x06,                    //     INPUT (Data,Var,Rel)
+    0xc0,                          //   END_COLLECTION
+    0xc0,                          // END_COLLECTION
+
+	//	Keyboard
+    0x05, 0x01,                    // USAGE_PAGE (Generic Desktop)	// 47
+    0x09, 0x06,                    // USAGE (Keyboard)
+    0xa1, 0x01,                    // COLLECTION (Application)
+    0x85, 0x02,                    //   REPORT_ID (2)
+    0x05, 0x07,                    //   USAGE_PAGE (Keyboard)
+   
+	0x19, 0xe0,                    //   USAGE_MINIMUM (Keyboard LeftControl)
+    0x29, 0xe7,                    //   USAGE_MAXIMUM (Keyboard Right GUI)
+    0x15, 0x00,                    //   LOGICAL_MINIMUM (0)
+    0x25, 0x01,                    //   LOGICAL_MAXIMUM (1)
+    0x75, 0x01,                    //   REPORT_SIZE (1)
+    
+	0x95, 0x08,                    //   REPORT_COUNT (8)
+    0x81, 0x02,                    //   INPUT (Data,Var,Abs)
+    0x95, 0x01,                    //   REPORT_COUNT (1)
+    0x75, 0x08,                    //   REPORT_SIZE (8)
+    0x81, 0x03,                    //   INPUT (Cnst,Var,Abs)
+    
+	0x95, 0x06,                    //   REPORT_COUNT (6)
+    0x75, 0x08,                    //   REPORT_SIZE (8)
+    0x15, 0x00,                    //   LOGICAL_MINIMUM (0)
+    0x25, 0x65,                    //   LOGICAL_MAXIMUM (101)
+    0x05, 0x07,                    //   USAGE_PAGE (Keyboard)
+    
+	0x19, 0x00,                    //   USAGE_MINIMUM (Reserved (no event indicated))
+    0x29, 0x65,                    //   USAGE_MAXIMUM (Keyboard Application)
+    0x81, 0x00,                    //   INPUT (Data,Ary,Abs)
+    0xc0,                          // END_COLLECTION
+
+#if RAWHID_ENABLED
+	//	RAW HID
+	0x06, LSB(RAWHID_USAGE_PAGE), MSB(RAWHID_USAGE_PAGE),	// 30
+	0x0A, LSB(RAWHID_USAGE), MSB(RAWHID_USAGE),
+
+	0xA1, 0x01,				// Collection 0x01
+    0x85, 0x03,             // REPORT_ID (3)
+	0x75, 0x08,				// report size = 8 bits
+	0x15, 0x00,				// logical minimum = 0
+	0x26, 0xFF, 0x00,		// logical maximum = 255
+
+	0x95, 64,				// report count TX
+	0x09, 0x01,				// usage
+	0x81, 0x02,				// Input (array)
+
+	0x95, 64,				// report count RX
+	0x09, 0x02,				// usage
+	0x91, 0x02,				// Output (array)
+	0xC0					// end collection
+#endif
+};
+
+extern const HIDDescriptor _hidInterface PROGMEM;
+const HIDDescriptor _hidInterface =
+{
+	D_INTERFACE(HID_INTERFACE,1,3,0,0),
+	D_HIDREPORT(sizeof(_hidReportDescriptor)),
+	D_ENDPOINT(USB_ENDPOINT_IN (HID_ENDPOINT_INT),USB_ENDPOINT_TYPE_INTERRUPT,0x40,0x01)
+};
+
+//================================================================================
+//================================================================================
+//	Driver
+
+u8 _hid_protocol = 1;
+u8 _hid_idle = 1;
+
+#define WEAK __attribute__ ((weak))
+
+int WEAK HID_GetInterface(u8* interfaceNum)
+{
+	interfaceNum[0] += 1;	// uses 1
+	return USB_SendControl(TRANSFER_PGM,&_hidInterface,sizeof(_hidInterface));
+}
+
+int WEAK HID_GetDescriptor(int i)
+{
+	return USB_SendControl(TRANSFER_PGM,_hidReportDescriptor,sizeof(_hidReportDescriptor));
+}
+
+void WEAK HID_SendReport(u8 id, const void* data, int len)
+{
+	USB_Send(HID_TX, &id, 1);
+	USB_Send(HID_TX | TRANSFER_RELEASE,data,len);
+}
+
+bool WEAK HID_Setup(Setup& setup)
+{
+	u8 r = setup.bRequest;
+	u8 requestType = setup.bmRequestType;
+	if (REQUEST_DEVICETOHOST_CLASS_INTERFACE == requestType)
+	{
+		if (HID_GET_REPORT == r)
+		{
+			//HID_GetReport();
+			return true;
+		}
+		if (HID_GET_PROTOCOL == r)
+		{
+			//Send8(_hid_protocol);	// TODO
+			return true;
+		}
+	}
+	
+	if (REQUEST_HOSTTODEVICE_CLASS_INTERFACE == requestType)
+	{
+		if (HID_SET_PROTOCOL == r)
+		{
+			_hid_protocol = setup.wValueL;
+			return true;
+		}
+
+		if (HID_SET_IDLE == r)
+		{
+			_hid_idle = setup.wValueL;
+			return true;
+		}
+	}
+	return false;
+}
+
+//================================================================================
+//================================================================================
+//	Mouse
+
+Mouse_::Mouse_(void) : _buttons(0)
+{
+}
+
+void Mouse_::begin(void) 
+{
+}
+
+void Mouse_::end(void) 
+{
+}
+
+void Mouse_::click(uint8_t b)
+{
+	_buttons = b;
+	move(0,0,0);
+	_buttons = 0;
+	move(0,0,0);
+}
+
+void Mouse_::move(signed char x, signed char y, signed char wheel)
+{
+	u8 m[4];
+	m[0] = _buttons;
+	m[1] = x;
+	m[2] = y;
+	m[3] = wheel;
+	HID_SendReport(1,m,4);
+}
+
+void Mouse_::buttons(uint8_t b)
+{
+	if (b != _buttons)
+	{
+		_buttons = b;
+		move(0,0,0);
+	}
+}
+
+void Mouse_::press(uint8_t b) 
+{
+	buttons(_buttons | b);
+}
+
+void Mouse_::release(uint8_t b)
+{
+	buttons(_buttons & ~b);
+}
+
+bool Mouse_::isPressed(uint8_t b)
+{
+	if ((b & _buttons) > 0) 
+		return true;
+	return false;
+}
+
+//================================================================================
+//================================================================================
+//	Keyboard
+
+Keyboard_::Keyboard_(void) 
+{
+}
+
+void Keyboard_::begin(void) 
+{
+}
+
+void Keyboard_::end(void) 
+{
+}
+
+void Keyboard_::sendReport(KeyReport* keys)
+{
+	HID_SendReport(2,keys,sizeof(KeyReport));
+}
+
+extern
+const uint8_t _asciimap[128] PROGMEM;
+
+#define SHIFT 0x80
+const uint8_t _asciimap[128] =
+{
+	0x00,             // NUL
+	0x00,             // SOH
+	0x00,             // STX
+	0x00,             // ETX
+	0x00,             // EOT
+	0x00,             // ENQ
+	0x00,             // ACK  
+	0x00,             // BEL
+	0x2a,			// BS	Backspace
+	0x2b,			// TAB	Tab
+	0x28,			// LF	Enter
+	0x00,             // VT 
+	0x00,             // FF 
+	0x00,             // CR 
+	0x00,             // SO 
+	0x00,             // SI 
+	0x00,             // DEL
+	0x00,             // DC1
+	0x00,             // DC2
+	0x00,             // DC3
+	0x00,             // DC4
+	0x00,             // NAK
+	0x00,             // SYN
+	0x00,             // ETB
+	0x00,             // CAN
+	0x00,             // EM 
+	0x00,             // SUB
+	0x00,             // ESC
+	0x00,             // FS 
+	0x00,             // GS 
+	0x00,             // RS 
+	0x00,             // US 
+
+	0x2c,		   //  ' '
+	0x1e|SHIFT,	   // !
+	0x34|SHIFT,	   // "
+	0x20|SHIFT,    // #
+	0x21|SHIFT,    // $
+	0x22|SHIFT,    // %
+	0x24|SHIFT,    // &
+	0x34,          // '
+	0x26|SHIFT,    // (
+	0x27|SHIFT,    // )
+	0x25|SHIFT,    // *
+	0x2e|SHIFT,    // +
+	0x36,          // ,
+	0x2d,          // -
+	0x37,          // .
+	0x38,          // /
+	0x27,          // 0
+	0x1e,          // 1
+	0x1f,          // 2
+	0x20,          // 3
+	0x21,          // 4
+	0x22,          // 5
+	0x23,          // 6
+	0x24,          // 7
+	0x25,          // 8
+	0x26,          // 9
+	0x33|SHIFT,      // :
+	0x33,          // ;
+	0x36|SHIFT,      // <
+	0x2e,          // =
+	0x37|SHIFT,      // >
+	0x38|SHIFT,      // ?
+	0x1f|SHIFT,      // @
+	0x04|SHIFT,      // A
+	0x05|SHIFT,      // B
+	0x06|SHIFT,      // C
+	0x07|SHIFT,      // D
+	0x08|SHIFT,      // E
+	0x09|SHIFT,      // F
+	0x0a|SHIFT,      // G
+	0x0b|SHIFT,      // H
+	0x0c|SHIFT,      // I
+	0x0d|SHIFT,      // J
+	0x0e|SHIFT,      // K
+	0x0f|SHIFT,      // L
+	0x10|SHIFT,      // M
+	0x11|SHIFT,      // N
+	0x12|SHIFT,      // O
+	0x13|SHIFT,      // P
+	0x14|SHIFT,      // Q
+	0x15|SHIFT,      // R
+	0x16|SHIFT,      // S
+	0x17|SHIFT,      // T
+	0x18|SHIFT,      // U
+	0x19|SHIFT,      // V
+	0x1a|SHIFT,      // W
+	0x1b|SHIFT,      // X
+	0x1c|SHIFT,      // Y
+	0x1d|SHIFT,      // Z
+	0x2f,          // [
+	0x31,          // bslash
+	0x30,          // ]
+	0x23|SHIFT,    // ^
+	0x2d|SHIFT,    // _
+	0x35,          // `
+	0x04,          // a
+	0x05,          // b
+	0x06,          // c
+	0x07,          // d
+	0x08,          // e
+	0x09,          // f
+	0x0a,          // g
+	0x0b,          // h
+	0x0c,          // i
+	0x0d,          // j
+	0x0e,          // k
+	0x0f,          // l
+	0x10,          // m
+	0x11,          // n
+	0x12,          // o
+	0x13,          // p
+	0x14,          // q
+	0x15,          // r
+	0x16,          // s
+	0x17,          // t
+	0x18,          // u
+	0x19,          // v
+	0x1a,          // w
+	0x1b,          // x
+	0x1c,          // y
+	0x1d,          // z
+	0x2f|SHIFT,    // 
+	0x31|SHIFT,    // |
+	0x30|SHIFT,    // }
+	0x35|SHIFT,    // ~
+	0				// DEL
+};
+
+uint8_t USBPutChar(uint8_t c);
+
+// press() adds the specified key (printing, non-printing, or modifier)
+// to the persistent key report and sends the report.  Because of the way 
+// USB HID works, the host acts like the key remains pressed until we 
+// call release(), releaseAll(), or otherwise clear the report and resend.
+size_t Keyboard_::press(uint8_t k) 
+{
+	uint8_t i;
+	if (k >= 136) {			// it's a non-printing key (not a modifier)
+		k = k - 136;
+	} else if (k >= 128) {	// it's a modifier key
+		_keyReport.modifiers |= (1<<(k-128));
+		k = 0;
+	} else {				// it's a printing key
+		k = pgm_read_byte(_asciimap + k);
+		if (!k) {
+			setWriteError();
+			return 0;
+		}
+		if (k & 0x80) {						// it's a capital letter or other character reached with shift
+			_keyReport.modifiers |= 0x02;	// the left shift modifier
+			k &= 0x7F;
+		}
+	}
+	
+	// Add k to the key report only if it's not already present
+	// and if there is an empty slot.
+	if (_keyReport.keys[0] != k && _keyReport.keys[1] != k && 
+		_keyReport.keys[2] != k && _keyReport.keys[3] != k &&
+		_keyReport.keys[4] != k && _keyReport.keys[5] != k) {
+		
+		for (i=0; i<6; i++) {
+			if (_keyReport.keys[i] == 0x00) {
+				_keyReport.keys[i] = k;
+				break;
+			}
+		}
+		if (i == 6) {
+			setWriteError();
+			return 0;
+		}	
+	}
+	sendReport(&_keyReport);
+	return 1;
+}
+
+// release() takes the specified key out of the persistent key report and
+// sends the report.  This tells the OS the key is no longer pressed and that
+// it shouldn't be repeated any more.
+size_t Keyboard_::release(uint8_t k) 
+{
+	uint8_t i;
+	if (k >= 136) {			// it's a non-printing key (not a modifier)
+		k = k - 136;
+	} else if (k >= 128) {	// it's a modifier key
+		_keyReport.modifiers &= ~(1<<(k-128));
+		k = 0;
+	} else {				// it's a printing key
+		k = pgm_read_byte(_asciimap + k);
+		if (!k) {
+			return 0;
+		}
+		if (k & 0x80) {							// it's a capital letter or other character reached with shift
+			_keyReport.modifiers &= ~(0x02);	// the left shift modifier
+			k &= 0x7F;
+		}
+	}
+	
+	// Test the key report to see if k is present.  Clear it if it exists.
+	// Check all positions in case the key is present more than once (which it shouldn't be)
+	for (i=0; i<6; i++) {
+		if (0 != k && _keyReport.keys[i] == k) {
+			_keyReport.keys[i] = 0x00;
+		}
+	}
+
+	sendReport(&_keyReport);
+	return 1;
+}
+
+void Keyboard_::releaseAll(void)
+{
+	_keyReport.keys[0] = 0;
+	_keyReport.keys[1] = 0;	
+	_keyReport.keys[2] = 0;
+	_keyReport.keys[3] = 0;	
+	_keyReport.keys[4] = 0;
+	_keyReport.keys[5] = 0;	
+	_keyReport.modifiers = 0;
+	sendReport(&_keyReport);
+}
+
+size_t Keyboard_::write(uint8_t c)
+{	
+	uint8_t p = press(c);		// Keydown
+	uint8_t r = release(c);		// Keyup
+	return (p);					// just return the result of press() since release() almost always returns 1
+}
+
+#endif
+
+#endif /* if defined(USBCON) */
\ No newline at end of file
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/HardwareSerial.cpp b/lib/usbhost/arduino-1.0.1/cores/arduino/HardwareSerial.cpp
new file mode 100644
index 0000000000..f40ddee060
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/HardwareSerial.cpp
@@ -0,0 +1,428 @@
+/*
+  HardwareSerial.cpp - Hardware serial library for Wiring
+  Copyright (c) 2006 Nicholas Zambetti.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+  
+  Modified 23 November 2006 by David A. Mellis
+  Modified 28 September 2010 by Mark Sproul
+*/
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <inttypes.h>
+#include "Arduino.h"
+#include "wiring_private.h"
+
+// this next line disables the entire HardwareSerial.cpp, 
+// this is so I can support Attiny series and any other chip without a uart
+#if defined(UBRRH) || defined(UBRR0H) || defined(UBRR1H) || defined(UBRR2H) || defined(UBRR3H)
+
+#include "HardwareSerial.h"
+
+// Define constants and variables for buffering incoming serial data.  We're
+// using a ring buffer (I think), in which head is the index of the location
+// to which to write the next incoming character and tail is the index of the
+// location from which to read.
+#if (RAMEND < 1000)
+  #define SERIAL_BUFFER_SIZE 16
+#else
+  #define SERIAL_BUFFER_SIZE 64
+#endif
+
+struct ring_buffer
+{
+  unsigned char buffer[SERIAL_BUFFER_SIZE];
+  volatile unsigned int head;
+  volatile unsigned int tail;
+};
+
+#if defined(USBCON)
+  ring_buffer rx_buffer = { { 0 }, 0, 0};
+  ring_buffer tx_buffer = { { 0 }, 0, 0};
+#endif
+#if defined(UBRRH) || defined(UBRR0H)
+  ring_buffer rx_buffer  =  { { 0 }, 0, 0 };
+  ring_buffer tx_buffer  =  { { 0 }, 0, 0 };
+#endif
+#if defined(UBRR1H)
+  ring_buffer rx_buffer1  =  { { 0 }, 0, 0 };
+  ring_buffer tx_buffer1  =  { { 0 }, 0, 0 };
+#endif
+#if defined(UBRR2H)
+  ring_buffer rx_buffer2  =  { { 0 }, 0, 0 };
+  ring_buffer tx_buffer2  =  { { 0 }, 0, 0 };
+#endif
+#if defined(UBRR3H)
+  ring_buffer rx_buffer3  =  { { 0 }, 0, 0 };
+  ring_buffer tx_buffer3  =  { { 0 }, 0, 0 };
+#endif
+
+inline void store_char(unsigned char c, ring_buffer *buffer)
+{
+  int i = (unsigned int)(buffer->head + 1) % SERIAL_BUFFER_SIZE;
+
+  // if we should be storing the received character into the location
+  // just before the tail (meaning that the head would advance to the
+  // current location of the tail), we're about to overflow the buffer
+  // and so we don't write the character or advance the head.
+  if (i != buffer->tail) {
+    buffer->buffer[buffer->head] = c;
+    buffer->head = i;
+  }
+}
+
+#if !defined(USART0_RX_vect) && defined(USART1_RX_vect)
+// do nothing - on the 32u4 the first USART is USART1
+#else
+#if !defined(USART_RX_vect) && !defined(SIG_USART0_RECV) && \
+    !defined(SIG_UART0_RECV) && !defined(USART0_RX_vect) && \
+	!defined(SIG_UART_RECV)
+  #error "Don't know what the Data Received vector is called for the first UART"
+#else
+  void serialEvent() __attribute__((weak));
+  void serialEvent() {}
+  #define serialEvent_implemented
+#if defined(USART_RX_vect)
+  SIGNAL(USART_RX_vect)
+#elif defined(SIG_USART0_RECV)
+  SIGNAL(SIG_USART0_RECV)
+#elif defined(SIG_UART0_RECV)
+  SIGNAL(SIG_UART0_RECV)
+#elif defined(USART0_RX_vect)
+  SIGNAL(USART0_RX_vect)
+#elif defined(SIG_UART_RECV)
+  SIGNAL(SIG_UART_RECV)
+#endif
+  {
+  #if defined(UDR0)
+    unsigned char c  =  UDR0;
+  #elif defined(UDR)
+    unsigned char c  =  UDR;
+  #else
+    #error UDR not defined
+  #endif
+    store_char(c, &rx_buffer);
+  }
+#endif
+#endif
+
+#if defined(USART1_RX_vect)
+  void serialEvent1() __attribute__((weak));
+  void serialEvent1() {}
+  #define serialEvent1_implemented
+  SIGNAL(USART1_RX_vect)
+  {
+    unsigned char c = UDR1;
+    store_char(c, &rx_buffer1);
+  }
+#elif defined(SIG_USART1_RECV)
+  #error SIG_USART1_RECV
+#endif
+
+#if defined(USART2_RX_vect) && defined(UDR2)
+  void serialEvent2() __attribute__((weak));
+  void serialEvent2() {}
+  #define serialEvent2_implemented
+  SIGNAL(USART2_RX_vect)
+  {
+    unsigned char c = UDR2;
+    store_char(c, &rx_buffer2);
+  }
+#elif defined(SIG_USART2_RECV)
+  #error SIG_USART2_RECV
+#endif
+
+#if defined(USART3_RX_vect) && defined(UDR3)
+  void serialEvent3() __attribute__((weak));
+  void serialEvent3() {}
+  #define serialEvent3_implemented
+  SIGNAL(USART3_RX_vect)
+  {
+    unsigned char c = UDR3;
+    store_char(c, &rx_buffer3);
+  }
+#elif defined(SIG_USART3_RECV)
+  #error SIG_USART3_RECV
+#endif
+
+void serialEventRun(void)
+{
+#ifdef serialEvent_implemented
+  if (Serial.available()) serialEvent();
+#endif
+#ifdef serialEvent1_implemented
+  if (Serial1.available()) serialEvent1();
+#endif
+#ifdef serialEvent2_implemented
+  if (Serial2.available()) serialEvent2();
+#endif
+#ifdef serialEvent3_implemented
+  if (Serial3.available()) serialEvent3();
+#endif
+}
+
+
+#if !defined(USART0_UDRE_vect) && defined(USART1_UDRE_vect)
+// do nothing - on the 32u4 the first USART is USART1
+#else
+#if !defined(UART0_UDRE_vect) && !defined(UART_UDRE_vect) && !defined(USART0_UDRE_vect) && !defined(USART_UDRE_vect)
+  #error "Don't know what the Data Register Empty vector is called for the first UART"
+#else
+#if defined(UART0_UDRE_vect)
+ISR(UART0_UDRE_vect)
+#elif defined(UART_UDRE_vect)
+ISR(UART_UDRE_vect)
+#elif defined(USART0_UDRE_vect)
+ISR(USART0_UDRE_vect)
+#elif defined(USART_UDRE_vect)
+ISR(USART_UDRE_vect)
+#endif
+{
+  if (tx_buffer.head == tx_buffer.tail) {
+	// Buffer empty, so disable interrupts
+#if defined(UCSR0B)
+    cbi(UCSR0B, UDRIE0);
+#else
+    cbi(UCSRB, UDRIE);
+#endif
+  }
+  else {
+    // There is more data in the output buffer. Send the next byte
+    unsigned char c = tx_buffer.buffer[tx_buffer.tail];
+    tx_buffer.tail = (tx_buffer.tail + 1) % SERIAL_BUFFER_SIZE;
+	
+  #if defined(UDR0)
+    UDR0 = c;
+  #elif defined(UDR)
+    UDR = c;
+  #else
+    #error UDR not defined
+  #endif
+  }
+}
+#endif
+#endif
+
+#ifdef USART1_UDRE_vect
+ISR(USART1_UDRE_vect)
+{
+  if (tx_buffer1.head == tx_buffer1.tail) {
+	// Buffer empty, so disable interrupts
+    cbi(UCSR1B, UDRIE1);
+  }
+  else {
+    // There is more data in the output buffer. Send the next byte
+    unsigned char c = tx_buffer1.buffer[tx_buffer1.tail];
+    tx_buffer1.tail = (tx_buffer1.tail + 1) % SERIAL_BUFFER_SIZE;
+	
+    UDR1 = c;
+  }
+}
+#endif
+
+#ifdef USART2_UDRE_vect
+ISR(USART2_UDRE_vect)
+{
+  if (tx_buffer2.head == tx_buffer2.tail) {
+	// Buffer empty, so disable interrupts
+    cbi(UCSR2B, UDRIE2);
+  }
+  else {
+    // There is more data in the output buffer. Send the next byte
+    unsigned char c = tx_buffer2.buffer[tx_buffer2.tail];
+    tx_buffer2.tail = (tx_buffer2.tail + 1) % SERIAL_BUFFER_SIZE;
+	
+    UDR2 = c;
+  }
+}
+#endif
+
+#ifdef USART3_UDRE_vect
+ISR(USART3_UDRE_vect)
+{
+  if (tx_buffer3.head == tx_buffer3.tail) {
+	// Buffer empty, so disable interrupts
+    cbi(UCSR3B, UDRIE3);
+  }
+  else {
+    // There is more data in the output buffer. Send the next byte
+    unsigned char c = tx_buffer3.buffer[tx_buffer3.tail];
+    tx_buffer3.tail = (tx_buffer3.tail + 1) % SERIAL_BUFFER_SIZE;
+	
+    UDR3 = c;
+  }
+}
+#endif
+
+
+// Constructors ////////////////////////////////////////////////////////////////
+
+HardwareSerial::HardwareSerial(ring_buffer *rx_buffer, ring_buffer *tx_buffer,
+  volatile uint8_t *ubrrh, volatile uint8_t *ubrrl,
+  volatile uint8_t *ucsra, volatile uint8_t *ucsrb,
+  volatile uint8_t *udr,
+  uint8_t rxen, uint8_t txen, uint8_t rxcie, uint8_t udrie, uint8_t u2x)
+{
+  _rx_buffer = rx_buffer;
+  _tx_buffer = tx_buffer;
+  _ubrrh = ubrrh;
+  _ubrrl = ubrrl;
+  _ucsra = ucsra;
+  _ucsrb = ucsrb;
+  _udr = udr;
+  _rxen = rxen;
+  _txen = txen;
+  _rxcie = rxcie;
+  _udrie = udrie;
+  _u2x = u2x;
+}
+
+// Public Methods //////////////////////////////////////////////////////////////
+
+void HardwareSerial::begin(unsigned long baud)
+{
+  uint16_t baud_setting;
+  bool use_u2x = true;
+
+#if F_CPU == 16000000UL
+  // hardcoded exception for compatibility with the bootloader shipped
+  // with the Duemilanove and previous boards and the firmware on the 8U2
+  // on the Uno and Mega 2560.
+  if (baud == 57600) {
+    use_u2x = false;
+  }
+#endif
+
+try_again:
+  
+  if (use_u2x) {
+    *_ucsra = 1 << _u2x;
+    baud_setting = (F_CPU / 4 / baud - 1) / 2;
+  } else {
+    *_ucsra = 0;
+    baud_setting = (F_CPU / 8 / baud - 1) / 2;
+  }
+  
+  if ((baud_setting > 4095) && use_u2x)
+  {
+    use_u2x = false;
+    goto try_again;
+  }
+
+  // assign the baud_setting, a.k.a. ubbr (USART Baud Rate Register)
+  *_ubrrh = baud_setting >> 8;
+  *_ubrrl = baud_setting;
+
+  sbi(*_ucsrb, _rxen);
+  sbi(*_ucsrb, _txen);
+  sbi(*_ucsrb, _rxcie);
+  cbi(*_ucsrb, _udrie);
+}
+
+void HardwareSerial::end()
+{
+  // wait for transmission of outgoing data
+  while (_tx_buffer->head != _tx_buffer->tail)
+    ;
+
+  cbi(*_ucsrb, _rxen);
+  cbi(*_ucsrb, _txen);
+  cbi(*_ucsrb, _rxcie);  
+  cbi(*_ucsrb, _udrie);
+  
+  // clear any received data
+  _rx_buffer->head = _rx_buffer->tail;
+}
+
+int HardwareSerial::available(void)
+{
+  return (unsigned int)(SERIAL_BUFFER_SIZE + _rx_buffer->head - _rx_buffer->tail) % SERIAL_BUFFER_SIZE;
+}
+
+int HardwareSerial::peek(void)
+{
+  if (_rx_buffer->head == _rx_buffer->tail) {
+    return -1;
+  } else {
+    return _rx_buffer->buffer[_rx_buffer->tail];
+  }
+}
+
+int HardwareSerial::read(void)
+{
+  // if the head isn't ahead of the tail, we don't have any characters
+  if (_rx_buffer->head == _rx_buffer->tail) {
+    return -1;
+  } else {
+    unsigned char c = _rx_buffer->buffer[_rx_buffer->tail];
+    _rx_buffer->tail = (unsigned int)(_rx_buffer->tail + 1) % SERIAL_BUFFER_SIZE;
+    return c;
+  }
+}
+
+void HardwareSerial::flush()
+{
+  while (_tx_buffer->head != _tx_buffer->tail)
+    ;
+}
+
+size_t HardwareSerial::write(uint8_t c)
+{
+  int i = (_tx_buffer->head + 1) % SERIAL_BUFFER_SIZE;
+	
+  // If the output buffer is full, there's nothing for it other than to 
+  // wait for the interrupt handler to empty it a bit
+  // ???: return 0 here instead?
+  while (i == _tx_buffer->tail)
+    ;
+	
+  _tx_buffer->buffer[_tx_buffer->head] = c;
+  _tx_buffer->head = i;
+	
+  sbi(*_ucsrb, _udrie);
+  
+  return 1;
+}
+
+HardwareSerial::operator bool() {
+	return true;
+}
+
+// Preinstantiate Objects //////////////////////////////////////////////////////
+
+#if defined(UBRRH) && defined(UBRRL)
+  HardwareSerial Serial(&rx_buffer, &tx_buffer, &UBRRH, &UBRRL, &UCSRA, &UCSRB, &UDR, RXEN, TXEN, RXCIE, UDRIE, U2X);
+#elif defined(UBRR0H) && defined(UBRR0L)
+  HardwareSerial Serial(&rx_buffer, &tx_buffer, &UBRR0H, &UBRR0L, &UCSR0A, &UCSR0B, &UDR0, RXEN0, TXEN0, RXCIE0, UDRIE0, U2X0);
+#elif defined(USBCON)
+  // do nothing - Serial object and buffers are initialized in CDC code
+#else
+  #error no serial port defined  (port 0)
+#endif
+
+#if defined(UBRR1H)
+  HardwareSerial Serial1(&rx_buffer1, &tx_buffer1, &UBRR1H, &UBRR1L, &UCSR1A, &UCSR1B, &UDR1, RXEN1, TXEN1, RXCIE1, UDRIE1, U2X1);
+#endif
+#if defined(UBRR2H)
+  HardwareSerial Serial2(&rx_buffer2, &tx_buffer2, &UBRR2H, &UBRR2L, &UCSR2A, &UCSR2B, &UDR2, RXEN2, TXEN2, RXCIE2, UDRIE2, U2X2);
+#endif
+#if defined(UBRR3H)
+  HardwareSerial Serial3(&rx_buffer3, &tx_buffer3, &UBRR3H, &UBRR3L, &UCSR3A, &UCSR3B, &UDR3, RXEN3, TXEN3, RXCIE3, UDRIE3, U2X3);
+#endif
+
+#endif // whole file
+
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/HardwareSerial.h b/lib/usbhost/arduino-1.0.1/cores/arduino/HardwareSerial.h
new file mode 100644
index 0000000000..bf4924c6d4
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/HardwareSerial.h
@@ -0,0 +1,81 @@
+/*
+  HardwareSerial.h - Hardware serial library for Wiring
+  Copyright (c) 2006 Nicholas Zambetti.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+  Modified 28 September 2010 by Mark Sproul
+*/
+
+#ifndef HardwareSerial_h
+#define HardwareSerial_h
+
+#include <inttypes.h>
+
+#include "Stream.h"
+
+struct ring_buffer;
+
+class HardwareSerial : public Stream
+{
+  private:
+    ring_buffer *_rx_buffer;
+    ring_buffer *_tx_buffer;
+    volatile uint8_t *_ubrrh;
+    volatile uint8_t *_ubrrl;
+    volatile uint8_t *_ucsra;
+    volatile uint8_t *_ucsrb;
+    volatile uint8_t *_udr;
+    uint8_t _rxen;
+    uint8_t _txen;
+    uint8_t _rxcie;
+    uint8_t _udrie;
+    uint8_t _u2x;
+  public:
+    HardwareSerial(ring_buffer *rx_buffer, ring_buffer *tx_buffer,
+      volatile uint8_t *ubrrh, volatile uint8_t *ubrrl,
+      volatile uint8_t *ucsra, volatile uint8_t *ucsrb,
+      volatile uint8_t *udr,
+      uint8_t rxen, uint8_t txen, uint8_t rxcie, uint8_t udrie, uint8_t u2x);
+    void begin(unsigned long);
+    void end();
+    virtual int available(void);
+    virtual int peek(void);
+    virtual int read(void);
+    virtual void flush(void);
+    virtual size_t write(uint8_t);
+    using Print::write; // pull in write(str) and write(buf, size) from Print
+    operator bool();
+};
+
+#if defined(UBRRH) || defined(UBRR0H)
+  extern HardwareSerial Serial;
+#elif defined(USBCON)
+  #include "USBAPI.h"
+//  extern HardwareSerial Serial_;  
+#endif
+#if defined(UBRR1H)
+  extern HardwareSerial Serial1;
+#endif
+#if defined(UBRR2H)
+  extern HardwareSerial Serial2;
+#endif
+#if defined(UBRR3H)
+  extern HardwareSerial Serial3;
+#endif
+
+extern void serialEventRun(void) __attribute__((weak));
+
+#endif
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/IPAddress.cpp b/lib/usbhost/arduino-1.0.1/cores/arduino/IPAddress.cpp
new file mode 100644
index 0000000000..fe3deb77a2
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/IPAddress.cpp
@@ -0,0 +1,56 @@
+
+#include <Arduino.h>
+#include <IPAddress.h>
+
+IPAddress::IPAddress()
+{
+    memset(_address, 0, sizeof(_address));
+}
+
+IPAddress::IPAddress(uint8_t first_octet, uint8_t second_octet, uint8_t third_octet, uint8_t fourth_octet)
+{
+    _address[0] = first_octet;
+    _address[1] = second_octet;
+    _address[2] = third_octet;
+    _address[3] = fourth_octet;
+}
+
+IPAddress::IPAddress(uint32_t address)
+{
+    memcpy(_address, &address, sizeof(_address));
+}
+
+IPAddress::IPAddress(const uint8_t *address)
+{
+    memcpy(_address, address, sizeof(_address));
+}
+
+IPAddress& IPAddress::operator=(const uint8_t *address)
+{
+    memcpy(_address, address, sizeof(_address));
+    return *this;
+}
+
+IPAddress& IPAddress::operator=(uint32_t address)
+{
+    memcpy(_address, (const uint8_t *)&address, sizeof(_address));
+    return *this;
+}
+
+bool IPAddress::operator==(const uint8_t* addr)
+{
+    return memcmp(addr, _address, sizeof(_address)) == 0;
+}
+
+size_t IPAddress::printTo(Print& p) const
+{
+    size_t n = 0;
+    for (int i =0; i < 3; i++)
+    {
+        n += p.print(_address[i], DEC);
+        n += p.print('.');
+    }
+    n += p.print(_address[3], DEC);
+    return n;
+}
+
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/IPAddress.h b/lib/usbhost/arduino-1.0.1/cores/arduino/IPAddress.h
new file mode 100644
index 0000000000..2585aec0e4
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/IPAddress.h
@@ -0,0 +1,76 @@
+/*
+ *
+ * MIT License:
+ * Copyright (c) 2011 Adrian McEwen
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * adrianm@mcqn.com 1/1/2011
+ */
+
+#ifndef IPAddress_h
+#define IPAddress_h
+
+#include <Printable.h>
+
+// A class to make it easier to handle and pass around IP addresses
+
+class IPAddress : public Printable {
+private:
+    uint8_t _address[4];  // IPv4 address
+    // Access the raw byte array containing the address.  Because this returns a pointer
+    // to the internal structure rather than a copy of the address this function should only
+    // be used when you know that the usage of the returned uint8_t* will be transient and not
+    // stored.
+    uint8_t* raw_address() { return _address; };
+
+public:
+    // Constructors
+    IPAddress();
+    IPAddress(uint8_t first_octet, uint8_t second_octet, uint8_t third_octet, uint8_t fourth_octet);
+    IPAddress(uint32_t address);
+    IPAddress(const uint8_t *address);
+
+    // Overloaded cast operator to allow IPAddress objects to be used where a pointer
+    // to a four-byte uint8_t array is expected
+    operator uint32_t() { return *((uint32_t*)_address); };
+    bool operator==(const IPAddress& addr) { return (*((uint32_t*)_address)) == (*((uint32_t*)addr._address)); };
+    bool operator==(const uint8_t* addr);
+
+    // Overloaded index operator to allow getting and setting individual octets of the address
+    uint8_t operator[](int index) const { return _address[index]; };
+    uint8_t& operator[](int index) { return _address[index]; };
+
+    // Overloaded copy operators to allow initialisation of IPAddress objects from other types
+    IPAddress& operator=(const uint8_t *address);
+    IPAddress& operator=(uint32_t address);
+
+    virtual size_t printTo(Print& p) const;
+
+    friend class EthernetClass;
+    friend class UDP;
+    friend class Client;
+    friend class Server;
+    friend class DhcpClass;
+    friend class DNSClient;
+};
+
+const IPAddress INADDR_NONE(0,0,0,0);
+
+
+#endif
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/Platform.h b/lib/usbhost/arduino-1.0.1/cores/arduino/Platform.h
new file mode 100644
index 0000000000..8b8f742771
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/Platform.h
@@ -0,0 +1,23 @@
+
+#ifndef __PLATFORM_H__
+#define __PLATFORM_H__
+
+#include <inttypes.h>
+#include <avr/pgmspace.h>
+#include <avr/eeprom.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+
+typedef unsigned char u8;
+typedef unsigned short u16;
+typedef unsigned long u32;
+
+#include "Arduino.h"
+
+#if defined(USBCON)
+	#include "USBDesc.h"
+	#include "USBCore.h"
+	#include "USBAPI.h"
+#endif /* if defined(USBCON) */
+
+#endif
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/Print.cpp b/lib/usbhost/arduino-1.0.1/cores/arduino/Print.cpp
new file mode 100644
index 0000000000..e541a6ce71
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/Print.cpp
@@ -0,0 +1,263 @@
+/*
+ Print.cpp - Base class that provides print() and println()
+ Copyright (c) 2008 David A. Mellis.  All right reserved.
+ 
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+ 
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ Lesser General Public License for more details.
+ 
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ 
+ Modified 23 November 2006 by David A. Mellis
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <math.h>
+#include "Arduino.h"
+
+#include "Print.h"
+
+// Public Methods //////////////////////////////////////////////////////////////
+
+/* default implementation: may be overridden */
+size_t Print::write(const uint8_t *buffer, size_t size)
+{
+  size_t n = 0;
+  while (size--) {
+    n += write(*buffer++);
+  }
+  return n;
+}
+
+size_t Print::print(const __FlashStringHelper *ifsh)
+{
+  const char PROGMEM *p = (const char PROGMEM *)ifsh;
+  size_t n = 0;
+  while (1) {
+    unsigned char c = pgm_read_byte(p++);
+    if (c == 0) break;
+    n += write(c);
+  }
+  return n;
+}
+
+size_t Print::print(const String &s)
+{
+  size_t n = 0;
+  for (uint16_t i = 0; i < s.length(); i++) {
+    n += write(s[i]);
+  }
+  return n;
+}
+
+size_t Print::print(const char str[])
+{
+  return write(str);
+}
+
+size_t Print::print(char c)
+{
+  return write(c);
+}
+
+size_t Print::print(unsigned char b, int base)
+{
+  return print((unsigned long) b, base);
+}
+
+size_t Print::print(int n, int base)
+{
+  return print((long) n, base);
+}
+
+size_t Print::print(unsigned int n, int base)
+{
+  return print((unsigned long) n, base);
+}
+
+size_t Print::print(long n, int base)
+{
+  if (base == 0) {
+    return write(n);
+  } else if (base == 10) {
+    if (n < 0) {
+      int t = print('-');
+      n = -n;
+      return printNumber(n, 10) + t;
+    }
+    return printNumber(n, 10);
+  } else {
+    return printNumber(n, base);
+  }
+}
+
+size_t Print::print(unsigned long n, int base)
+{
+  if (base == 0) return write(n);
+  else return printNumber(n, base);
+}
+
+size_t Print::print(double n, int digits)
+{
+  return printFloat(n, digits);
+}
+
+size_t Print::println(const __FlashStringHelper *ifsh)
+{
+  size_t n = print(ifsh);
+  n += println();
+  return n;
+}
+
+size_t Print::print(const Printable& x)
+{
+  return x.printTo(*this);
+}
+
+size_t Print::println(void)
+{
+  size_t n = print('\r');
+  n += print('\n');
+  return n;
+}
+
+size_t Print::println(const String &s)
+{
+  size_t n = print(s);
+  n += println();
+  return n;
+}
+
+size_t Print::println(const char c[])
+{
+  size_t n = print(c);
+  n += println();
+  return n;
+}
+
+size_t Print::println(char c)
+{
+  size_t n = print(c);
+  n += println();
+  return n;
+}
+
+size_t Print::println(unsigned char b, int base)
+{
+  size_t n = print(b, base);
+  n += println();
+  return n;
+}
+
+size_t Print::println(int num, int base)
+{
+  size_t n = print(num, base);
+  n += println();
+  return n;
+}
+
+size_t Print::println(unsigned int num, int base)
+{
+  size_t n = print(num, base);
+  n += println();
+  return n;
+}
+
+size_t Print::println(long num, int base)
+{
+  size_t n = print(num, base);
+  n += println();
+  return n;
+}
+
+size_t Print::println(unsigned long num, int base)
+{
+  size_t n = print(num, base);
+  n += println();
+  return n;
+}
+
+size_t Print::println(double num, int digits)
+{
+  size_t n = print(num, digits);
+  n += println();
+  return n;
+}
+
+size_t Print::println(const Printable& x)
+{
+  size_t n = print(x);
+  n += println();
+  return n;
+}
+
+// Private Methods /////////////////////////////////////////////////////////////
+
+size_t Print::printNumber(unsigned long n, uint8_t base) {
+  char buf[8 * sizeof(long) + 1]; // Assumes 8-bit chars plus zero byte.
+  char *str = &buf[sizeof(buf) - 1];
+
+  *str = '\0';
+
+  // prevent crash if called with base == 1
+  if (base < 2) base = 10;
+
+  do {
+    unsigned long m = n;
+    n /= base;
+    char c = m - base * n;
+    *--str = c < 10 ? c + '0' : c + 'A' - 10;
+  } while(n);
+
+  return write(str);
+}
+
+size_t Print::printFloat(double number, uint8_t digits) 
+{ 
+  size_t n = 0;
+  
+  // Handle negative numbers
+  if (number < 0.0)
+  {
+     n += print('-');
+     number = -number;
+  }
+
+  // Round correctly so that print(1.999, 2) prints as "2.00"
+  double rounding = 0.5;
+  for (uint8_t i=0; i<digits; ++i)
+    rounding /= 10.0;
+  
+  number += rounding;
+
+  // Extract the integer part of the number and print it
+  unsigned long int_part = (unsigned long)number;
+  double remainder = number - (double)int_part;
+  n += print(int_part);
+
+  // Print the decimal point, but only if there are digits beyond
+  if (digits > 0) {
+    n += print("."); 
+  }
+
+  // Extract digits from the remainder one at a time
+  while (digits-- > 0)
+  {
+    remainder *= 10.0;
+    int toPrint = int(remainder);
+    n += print(toPrint);
+    remainder -= toPrint; 
+  } 
+  
+  return n;
+}
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/Print.h b/lib/usbhost/arduino-1.0.1/cores/arduino/Print.h
new file mode 100644
index 0000000000..1af6b723fc
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/Print.h
@@ -0,0 +1,78 @@
+/*
+  Print.h - Base class that provides print() and println()
+  Copyright (c) 2008 David A. Mellis.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef Print_h
+#define Print_h
+
+#include <inttypes.h>
+#include <stdio.h> // for size_t
+
+#include "WString.h"
+#include "Printable.h"
+
+#define DEC 10
+#define HEX 16
+#define OCT 8
+#define BIN 2
+
+class Print
+{
+  private:
+    int write_error;
+    size_t printNumber(unsigned long, uint8_t);
+    size_t printFloat(double, uint8_t);
+  protected:
+    void setWriteError(int err = 1) { write_error = err; }
+  public:
+    Print() : write_error(0) {}
+  
+    int getWriteError() { return write_error; }
+    void clearWriteError() { setWriteError(0); }
+  
+    virtual size_t write(uint8_t) = 0;
+    size_t write(const char *str) { return write((const uint8_t *)str, strlen(str)); }
+    virtual size_t write(const uint8_t *buffer, size_t size);
+    
+    size_t print(const __FlashStringHelper *);
+    size_t print(const String &);
+    size_t print(const char[]);
+    size_t print(char);
+    size_t print(unsigned char, int = DEC);
+    size_t print(int, int = DEC);
+    size_t print(unsigned int, int = DEC);
+    size_t print(long, int = DEC);
+    size_t print(unsigned long, int = DEC);
+    size_t print(double, int = 2);
+    size_t print(const Printable&);
+
+    size_t println(const __FlashStringHelper *);
+    size_t println(const String &s);
+    size_t println(const char[]);
+    size_t println(char);
+    size_t println(unsigned char, int = DEC);
+    size_t println(int, int = DEC);
+    size_t println(unsigned int, int = DEC);
+    size_t println(long, int = DEC);
+    size_t println(unsigned long, int = DEC);
+    size_t println(double, int = 2);
+    size_t println(const Printable&);
+    size_t println(void);
+};
+
+#endif
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/Printable.h b/lib/usbhost/arduino-1.0.1/cores/arduino/Printable.h
new file mode 100644
index 0000000000..d03c9af62c
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/Printable.h
@@ -0,0 +1,40 @@
+/*
+  Printable.h - Interface class that allows printing of complex types
+  Copyright (c) 2011 Adrian McEwen.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef Printable_h
+#define Printable_h
+
+#include <new.h>
+
+class Print;
+
+/** The Printable class provides a way for new classes to allow themselves to be printed.
+    By deriving from Printable and implementing the printTo method, it will then be possible
+    for users to print out instances of this class by passing them into the usual
+    Print::print and Print::println methods.
+*/
+
+class Printable
+{
+  public:
+    virtual size_t printTo(Print& p) const = 0;
+};
+
+#endif
+
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/Server.h b/lib/usbhost/arduino-1.0.1/cores/arduino/Server.h
new file mode 100644
index 0000000000..9674c76269
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/Server.h
@@ -0,0 +1,9 @@
+#ifndef server_h
+#define server_h
+
+class Server : public Print {
+public:
+  virtual void begin() =0;
+};
+
+#endif
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/Stream.cpp b/lib/usbhost/arduino-1.0.1/cores/arduino/Stream.cpp
new file mode 100644
index 0000000000..aafb7fcf97
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/Stream.cpp
@@ -0,0 +1,270 @@
+/*
+ Stream.cpp - adds parsing methods to Stream class
+ Copyright (c) 2008 David A. Mellis.  All right reserved.
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+ Created July 2011
+ parsing functions based on TextFinder library by Michael Margolis
+ */
+
+#include "Arduino.h"
+#include "Stream.h"
+
+#define PARSE_TIMEOUT 1000  // default number of milli-seconds to wait
+#define NO_SKIP_CHAR  1  // a magic char not found in a valid ASCII numeric field
+
+// private method to read stream with timeout
+int Stream::timedRead()
+{
+  int c;
+  _startMillis = millis();
+  do {
+    c = read();
+    if (c >= 0) return c;
+  } while(millis() - _startMillis < _timeout);
+  return -1;     // -1 indicates timeout
+}
+
+// private method to peek stream with timeout
+int Stream::timedPeek()
+{
+  int c;
+  _startMillis = millis();
+  do {
+    c = peek();
+    if (c >= 0) return c;
+  } while(millis() - _startMillis < _timeout);
+  return -1;     // -1 indicates timeout
+}
+
+// returns peek of the next digit in the stream or -1 if timeout
+// discards non-numeric characters
+int Stream::peekNextDigit()
+{
+  int c;
+  while (1) {
+    c = timedPeek();
+    if (c < 0) return c;  // timeout
+    if (c == '-') return c;
+    if (c >= '0' && c <= '9') return c;
+    read();  // discard non-numeric
+  }
+}
+
+// Public Methods
+//////////////////////////////////////////////////////////////
+
+void Stream::setTimeout(unsigned long timeout)  // sets the maximum number of milliseconds to wait
+{
+  _timeout = timeout;
+}
+
+ // find returns true if the target string is found
+bool  Stream::find(char *target)
+{
+  return findUntil(target, NULL);
+}
+
+// reads data from the stream until the target string of given length is found
+// returns true if target string is found, false if timed out
+bool Stream::find(char *target, size_t length)
+{
+  return findUntil(target, length, NULL, 0);
+}
+
+// as find but search ends if the terminator string is found
+bool  Stream::findUntil(char *target, char *terminator)
+{
+  return findUntil(target, strlen(target), terminator, strlen(terminator));
+}
+
+// reads data from the stream until the target string of the given length is found
+// search terminated if the terminator string is found
+// returns true if target string is found, false if terminated or timed out
+bool Stream::findUntil(char *target, size_t targetLen, char *terminator, size_t termLen)
+{
+  size_t index = 0;  // maximum target string length is 64k bytes!
+  size_t termIndex = 0;
+  int c;
+  
+  if( *target == 0)
+    return true;   // return true if target is a null string
+  while( (c = timedRead()) > 0){
+    
+    if(c != target[index])
+      index = 0; // reset index if any char does not match
+    
+    if( c == target[index]){
+      //////Serial.print("found "); Serial.write(c); Serial.print("index now"); Serial.println(index+1);
+      if(++index >= targetLen){ // return true if all chars in the target match
+        return true;
+      }
+    }
+    
+    if(termLen > 0 && c == terminator[termIndex]){
+      if(++termIndex >= termLen)
+        return false;       // return false if terminate string found before target string
+    }
+    else
+      termIndex = 0;
+  }
+  return false;
+}
+
+
+// returns the first valid (long) integer value from the current position.
+// initial characters that are not digits (or the minus sign) are skipped
+// function is terminated by the first character that is not a digit.
+long Stream::parseInt()
+{
+  return parseInt(NO_SKIP_CHAR); // terminate on first non-digit character (or timeout)
+}
+
+// as above but a given skipChar is ignored
+// this allows format characters (typically commas) in values to be ignored
+long Stream::parseInt(char skipChar)
+{
+  boolean isNegative = false;
+  long value = 0;
+  int c;
+
+  c = peekNextDigit();
+  // ignore non numeric leading characters
+  if(c < 0)
+    return 0; // zero returned if timeout
+
+  do{
+    if(c == skipChar)
+      ; // ignore this charactor
+    else if(c == '-')
+      isNegative = true;
+    else if(c >= '0' && c <= '9')        // is c a digit?
+      value = value * 10 + c - '0';
+    read();  // consume the character we got with peek
+    c = timedPeek();
+  }
+  while( (c >= '0' && c <= '9') || c == skipChar );
+
+  if(isNegative)
+    value = -value;
+  return value;
+}
+
+
+// as parseInt but returns a floating point value
+float Stream::parseFloat()
+{
+  return parseFloat(NO_SKIP_CHAR);
+}
+
+// as above but the given skipChar is ignored
+// this allows format characters (typically commas) in values to be ignored
+float Stream::parseFloat(char skipChar){
+  boolean isNegative = false;
+  boolean isFraction = false;
+  long value = 0;
+  char c;
+  float fraction = 1.0;
+
+  c = peekNextDigit();
+    // ignore non numeric leading characters
+  if(c < 0)
+    return 0; // zero returned if timeout
+
+  do{
+    if(c == skipChar)
+      ; // ignore
+    else if(c == '-')
+      isNegative = true;
+    else if (c == '.')
+      isFraction = true;
+    else if(c >= '0' && c <= '9')  {      // is c a digit?
+      value = value * 10 + c - '0';
+      if(isFraction)
+         fraction *= 0.1;
+    }
+    read();  // consume the character we got with peek
+    c = timedPeek();
+  }
+  while( (c >= '0' && c <= '9')  || c == '.' || c == skipChar );
+
+  if(isNegative)
+    value = -value;
+  if(isFraction)
+    return value * fraction;
+  else
+    return value;
+}
+
+// read characters from stream into buffer
+// terminates if length characters have been read, or timeout (see setTimeout)
+// returns the number of characters placed in the buffer
+// the buffer is NOT null terminated.
+//
+size_t Stream::readBytes(char *buffer, size_t length)
+{
+  size_t count = 0;
+  while (count < length) {
+    int c = timedRead();
+    if (c < 0) break;
+    *buffer++ = (char)c;
+    count++;
+  }
+  return count;
+}
+
+
+// as readBytes with terminator character
+// terminates if length characters have been read, timeout, or if the terminator character  detected
+// returns the number of characters placed in the buffer (0 means no valid data found)
+
+size_t Stream::readBytesUntil(char terminator, char *buffer, size_t length)
+{
+  if (length < 1) return 0;
+  size_t index = 0;
+  while (index < length) {
+    int c = timedRead();
+    if (c < 0 || c == terminator) break;
+    *buffer++ = (char)c;
+    index++;
+  }
+  return index; // return number of characters, not including null terminator
+}
+
+String Stream::readString()
+{
+  String ret;
+  int c = timedRead();
+  while (c >= 0)
+  {
+    ret += (char)c;
+    c = timedRead();
+  }
+  return ret;
+}
+
+String Stream::readStringUntil(char terminator)
+{
+  String ret;
+  int c = timedRead();
+  while (c >= 0 && c != terminator)
+  {
+    ret += (char)c;
+    c = timedRead();
+  }
+  return ret;
+}
+
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/Stream.h b/lib/usbhost/arduino-1.0.1/cores/arduino/Stream.h
new file mode 100644
index 0000000000..58bbf752f3
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/Stream.h
@@ -0,0 +1,96 @@
+/*
+  Stream.h - base class for character-based streams.
+  Copyright (c) 2010 David A. Mellis.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+  parsing functions based on TextFinder library by Michael Margolis
+*/
+
+#ifndef Stream_h
+#define Stream_h
+
+#include <inttypes.h>
+#include "Print.h"
+
+// compatability macros for testing
+/*
+#define   getInt()            parseInt()
+#define   getInt(skipChar)    parseInt(skipchar)
+#define   getFloat()          parseFloat()
+#define   getFloat(skipChar)  parseFloat(skipChar)
+#define   getString( pre_string, post_string, buffer, length)
+readBytesBetween( pre_string, terminator, buffer, length)
+*/
+
+class Stream : public Print
+{
+  private:
+    unsigned long _timeout;      // number of milliseconds to wait for the next char before aborting timed read
+    unsigned long _startMillis;  // used for timeout measurement
+    int timedRead();    // private method to read stream with timeout
+    int timedPeek();    // private method to peek stream with timeout
+    int peekNextDigit(); // returns the next numeric digit in the stream or -1 if timeout
+
+  public:
+    virtual int available() = 0;
+    virtual int read() = 0;
+    virtual int peek() = 0;
+    virtual void flush() = 0;
+
+    Stream() {_timeout=1000;}
+
+// parsing methods
+
+  void setTimeout(unsigned long timeout);  // sets maximum milliseconds to wait for stream data, default is 1 second
+
+  bool find(char *target);   // reads data from the stream until the target string is found
+  // returns true if target string is found, false if timed out (see setTimeout)
+
+  bool find(char *target, size_t length);   // reads data from the stream until the target string of given length is found
+  // returns true if target string is found, false if timed out
+
+  bool findUntil(char *target, char *terminator);   // as find but search ends if the terminator string is found
+
+  bool findUntil(char *target, size_t targetLen, char *terminate, size_t termLen);   // as above but search ends if the terminate string is found
+
+
+  long parseInt(); // returns the first valid (long) integer value from the current position.
+  // initial characters that are not digits (or the minus sign) are skipped
+  // integer is terminated by the first character that is not a digit.
+
+  float parseFloat();               // float version of parseInt
+
+  size_t readBytes( char *buffer, size_t length); // read chars from stream into buffer
+  // terminates if length characters have been read or timeout (see setTimeout)
+  // returns the number of characters placed in the buffer (0 means no valid data found)
+
+  size_t readBytesUntil( char terminator, char *buffer, size_t length); // as readBytes with terminator character
+  // terminates if length characters have been read, timeout, or if the terminator character  detected
+  // returns the number of characters placed in the buffer (0 means no valid data found)
+
+  // Arduino String functions to be added here
+  String readString();
+  String readStringUntil(char terminator);
+
+  protected:
+  long parseInt(char skipChar); // as above but the given skipChar is ignored
+  // as above but the given skipChar is ignored
+  // this allows format characters (typically commas) in values to be ignored
+
+  float parseFloat(char skipChar);  // as above but the given skipChar is ignored
+};
+
+#endif
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/Tone.cpp b/lib/usbhost/arduino-1.0.1/cores/arduino/Tone.cpp
new file mode 100644
index 0000000000..20eed3f483
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/Tone.cpp
@@ -0,0 +1,601 @@
+/* Tone.cpp
+
+  A Tone Generator Library
+
+  Written by Brett Hagman
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+Version Modified By Date     Comments
+------- ----------- -------- --------
+0001    B Hagman    09/08/02 Initial coding
+0002    B Hagman    09/08/18 Multiple pins
+0003    B Hagman    09/08/18 Moved initialization from constructor to begin()
+0004    B Hagman    09/09/26 Fixed problems with ATmega8
+0005    B Hagman    09/11/23 Scanned prescalars for best fit on 8 bit timers
+                    09/11/25 Changed pin toggle method to XOR
+                    09/11/25 Fixed timer0 from being excluded
+0006    D Mellis    09/12/29 Replaced objects with functions
+0007    M Sproul    10/08/29 Changed #ifdefs from cpu to register
+*************************************************/
+
+#include <avr/interrupt.h>
+#include <avr/pgmspace.h>
+#include "Arduino.h"
+#include "pins_arduino.h"
+
+#if defined(__AVR_ATmega8__) || defined(__AVR_ATmega128__)
+#define TCCR2A TCCR2
+#define TCCR2B TCCR2
+#define COM2A1 COM21
+#define COM2A0 COM20
+#define OCR2A OCR2
+#define TIMSK2 TIMSK
+#define OCIE2A OCIE2
+#define TIMER2_COMPA_vect TIMER2_COMP_vect
+#define TIMSK1 TIMSK
+#endif
+
+// timerx_toggle_count:
+//  > 0 - duration specified
+//  = 0 - stopped
+//  < 0 - infinitely (until stop() method called, or new play() called)
+
+#if !defined(__AVR_ATmega8__)
+volatile long timer0_toggle_count;
+volatile uint8_t *timer0_pin_port;
+volatile uint8_t timer0_pin_mask;
+#endif
+
+volatile long timer1_toggle_count;
+volatile uint8_t *timer1_pin_port;
+volatile uint8_t timer1_pin_mask;
+volatile long timer2_toggle_count;
+volatile uint8_t *timer2_pin_port;
+volatile uint8_t timer2_pin_mask;
+
+#if defined(TIMSK3)
+volatile long timer3_toggle_count;
+volatile uint8_t *timer3_pin_port;
+volatile uint8_t timer3_pin_mask;
+#endif
+
+#if defined(TIMSK4)
+volatile long timer4_toggle_count;
+volatile uint8_t *timer4_pin_port;
+volatile uint8_t timer4_pin_mask;
+#endif
+
+#if defined(TIMSK5)
+volatile long timer5_toggle_count;
+volatile uint8_t *timer5_pin_port;
+volatile uint8_t timer5_pin_mask;
+#endif
+
+
+// MLS: This does not make sense, the 3 options are the same
+#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+
+#define AVAILABLE_TONE_PINS 1
+
+const uint8_t PROGMEM tone_pin_to_timer_PGM[] = { 2 /*, 3, 4, 5, 1, 0 */ };
+static uint8_t tone_pins[AVAILABLE_TONE_PINS] = { 255 /*, 255, 255, 255, 255, 255 */ };
+
+#elif defined(__AVR_ATmega8__)
+
+#define AVAILABLE_TONE_PINS 1
+
+const uint8_t PROGMEM tone_pin_to_timer_PGM[] = { 2 /*, 1 */ };
+static uint8_t tone_pins[AVAILABLE_TONE_PINS] = { 255 /*, 255 */ };
+
+#else
+
+#define AVAILABLE_TONE_PINS 1
+
+// Leave timer 0 to last.
+const uint8_t PROGMEM tone_pin_to_timer_PGM[] = { 2 /*, 1, 0 */ };
+static uint8_t tone_pins[AVAILABLE_TONE_PINS] = { 255 /*, 255, 255 */ };
+
+#endif
+
+
+
+static int8_t toneBegin(uint8_t _pin)
+{
+  int8_t _timer = -1;
+
+  // if we're already using the pin, the timer should be configured.  
+  for (int i = 0; i < AVAILABLE_TONE_PINS; i++) {
+    if (tone_pins[i] == _pin) {
+      return pgm_read_byte(tone_pin_to_timer_PGM + i);
+    }
+  }
+  
+  // search for an unused timer.
+  for (int i = 0; i < AVAILABLE_TONE_PINS; i++) {
+    if (tone_pins[i] == 255) {
+      tone_pins[i] = _pin;
+      _timer = pgm_read_byte(tone_pin_to_timer_PGM + i);
+      break;
+    }
+  }
+  
+  if (_timer != -1)
+  {
+    // Set timer specific stuff
+    // All timers in CTC mode
+    // 8 bit timers will require changing prescalar values,
+    // whereas 16 bit timers are set to either ck/1 or ck/64 prescalar
+    switch (_timer)
+    {
+      #if defined(TCCR0A) && defined(TCCR0B)
+      case 0:
+        // 8 bit timer
+        TCCR0A = 0;
+        TCCR0B = 0;
+        bitWrite(TCCR0A, WGM01, 1);
+        bitWrite(TCCR0B, CS00, 1);
+        timer0_pin_port = portOutputRegister(digitalPinToPort(_pin));
+        timer0_pin_mask = digitalPinToBitMask(_pin);
+        break;
+      #endif
+
+      #if defined(TCCR1A) && defined(TCCR1B) && defined(WGM12)
+      case 1:
+        // 16 bit timer
+        TCCR1A = 0;
+        TCCR1B = 0;
+        bitWrite(TCCR1B, WGM12, 1);
+        bitWrite(TCCR1B, CS10, 1);
+        timer1_pin_port = portOutputRegister(digitalPinToPort(_pin));
+        timer1_pin_mask = digitalPinToBitMask(_pin);
+        break;
+      #endif
+
+      #if defined(TCCR2A) && defined(TCCR2B)
+      case 2:
+        // 8 bit timer
+        TCCR2A = 0;
+        TCCR2B = 0;
+        bitWrite(TCCR2A, WGM21, 1);
+        bitWrite(TCCR2B, CS20, 1);
+        timer2_pin_port = portOutputRegister(digitalPinToPort(_pin));
+        timer2_pin_mask = digitalPinToBitMask(_pin);
+        break;
+      #endif
+
+      #if defined(TCCR3A) && defined(TCCR3B) &&  defined(TIMSK3)
+      case 3:
+        // 16 bit timer
+        TCCR3A = 0;
+        TCCR3B = 0;
+        bitWrite(TCCR3B, WGM32, 1);
+        bitWrite(TCCR3B, CS30, 1);
+        timer3_pin_port = portOutputRegister(digitalPinToPort(_pin));
+        timer3_pin_mask = digitalPinToBitMask(_pin);
+        break;
+      #endif
+
+      #if defined(TCCR4A) && defined(TCCR4B) &&  defined(TIMSK4)
+      case 4:
+        // 16 bit timer
+        TCCR4A = 0;
+        TCCR4B = 0;
+        #if defined(WGM42)
+          bitWrite(TCCR4B, WGM42, 1);
+        #elif defined(CS43)
+          #warning this may not be correct
+          // atmega32u4
+          bitWrite(TCCR4B, CS43, 1);
+        #endif
+        bitWrite(TCCR4B, CS40, 1);
+        timer4_pin_port = portOutputRegister(digitalPinToPort(_pin));
+        timer4_pin_mask = digitalPinToBitMask(_pin);
+        break;
+      #endif
+
+      #if defined(TCCR5A) && defined(TCCR5B) &&  defined(TIMSK5)
+      case 5:
+        // 16 bit timer
+        TCCR5A = 0;
+        TCCR5B = 0;
+        bitWrite(TCCR5B, WGM52, 1);
+        bitWrite(TCCR5B, CS50, 1);
+        timer5_pin_port = portOutputRegister(digitalPinToPort(_pin));
+        timer5_pin_mask = digitalPinToBitMask(_pin);
+        break;
+      #endif
+    }
+  }
+
+  return _timer;
+}
+
+
+
+// frequency (in hertz) and duration (in milliseconds).
+
+void tone(uint8_t _pin, unsigned int frequency, unsigned long duration)
+{
+  uint8_t prescalarbits = 0b001;
+  long toggle_count = 0;
+  uint32_t ocr = 0;
+  int8_t _timer;
+
+  _timer = toneBegin(_pin);
+
+  if (_timer >= 0)
+  {
+    // Set the pinMode as OUTPUT
+    pinMode(_pin, OUTPUT);
+    
+    // if we are using an 8 bit timer, scan through prescalars to find the best fit
+    if (_timer == 0 || _timer == 2)
+    {
+      ocr = F_CPU / frequency / 2 - 1;
+      prescalarbits = 0b001;  // ck/1: same for both timers
+      if (ocr > 255)
+      {
+        ocr = F_CPU / frequency / 2 / 8 - 1;
+        prescalarbits = 0b010;  // ck/8: same for both timers
+
+        if (_timer == 2 && ocr > 255)
+        {
+          ocr = F_CPU / frequency / 2 / 32 - 1;
+          prescalarbits = 0b011;
+        }
+
+        if (ocr > 255)
+        {
+          ocr = F_CPU / frequency / 2 / 64 - 1;
+          prescalarbits = _timer == 0 ? 0b011 : 0b100;
+
+          if (_timer == 2 && ocr > 255)
+          {
+            ocr = F_CPU / frequency / 2 / 128 - 1;
+            prescalarbits = 0b101;
+          }
+
+          if (ocr > 255)
+          {
+            ocr = F_CPU / frequency / 2 / 256 - 1;
+            prescalarbits = _timer == 0 ? 0b100 : 0b110;
+            if (ocr > 255)
+            {
+              // can't do any better than /1024
+              ocr = F_CPU / frequency / 2 / 1024 - 1;
+              prescalarbits = _timer == 0 ? 0b101 : 0b111;
+            }
+          }
+        }
+      }
+
+#if defined(TCCR0B)
+      if (_timer == 0)
+      {
+        TCCR0B = prescalarbits;
+      }
+      else
+#endif
+#if defined(TCCR2B)
+      {
+        TCCR2B = prescalarbits;
+      }
+#else
+      {
+        // dummy place holder to make the above ifdefs work
+      }
+#endif
+    }
+    else
+    {
+      // two choices for the 16 bit timers: ck/1 or ck/64
+      ocr = F_CPU / frequency / 2 - 1;
+
+      prescalarbits = 0b001;
+      if (ocr > 0xffff)
+      {
+        ocr = F_CPU / frequency / 2 / 64 - 1;
+        prescalarbits = 0b011;
+      }
+
+      if (_timer == 1)
+      {
+#if defined(TCCR1B)
+        TCCR1B = (TCCR1B & 0b11111000) | prescalarbits;
+#endif
+      }
+#if defined(TCCR3B)
+      else if (_timer == 3)
+        TCCR3B = (TCCR3B & 0b11111000) | prescalarbits;
+#endif
+#if defined(TCCR4B)
+      else if (_timer == 4)
+        TCCR4B = (TCCR4B & 0b11111000) | prescalarbits;
+#endif
+#if defined(TCCR5B)
+      else if (_timer == 5)
+        TCCR5B = (TCCR5B & 0b11111000) | prescalarbits;
+#endif
+
+    }
+    
+
+    // Calculate the toggle count
+    if (duration > 0)
+    {
+      toggle_count = 2 * frequency * duration / 1000;
+    }
+    else
+    {
+      toggle_count = -1;
+    }
+
+    // Set the OCR for the given timer,
+    // set the toggle count,
+    // then turn on the interrupts
+    switch (_timer)
+    {
+
+#if defined(OCR0A) && defined(TIMSK0) && defined(OCIE0A)
+      case 0:
+        OCR0A = ocr;
+        timer0_toggle_count = toggle_count;
+        bitWrite(TIMSK0, OCIE0A, 1);
+        break;
+#endif
+
+      case 1:
+#if defined(OCR1A) && defined(TIMSK1) && defined(OCIE1A)
+        OCR1A = ocr;
+        timer1_toggle_count = toggle_count;
+        bitWrite(TIMSK1, OCIE1A, 1);
+#elif defined(OCR1A) && defined(TIMSK) && defined(OCIE1A)
+        // this combination is for at least the ATmega32
+        OCR1A = ocr;
+        timer1_toggle_count = toggle_count;
+        bitWrite(TIMSK, OCIE1A, 1);
+#endif
+        break;
+
+#if defined(OCR2A) && defined(TIMSK2) && defined(OCIE2A)
+      case 2:
+        OCR2A = ocr;
+        timer2_toggle_count = toggle_count;
+        bitWrite(TIMSK2, OCIE2A, 1);
+        break;
+#endif
+
+#if defined(TIMSK3)
+      case 3:
+        OCR3A = ocr;
+        timer3_toggle_count = toggle_count;
+        bitWrite(TIMSK3, OCIE3A, 1);
+        break;
+#endif
+
+#if defined(TIMSK4)
+      case 4:
+        OCR4A = ocr;
+        timer4_toggle_count = toggle_count;
+        bitWrite(TIMSK4, OCIE4A, 1);
+        break;
+#endif
+
+#if defined(OCR5A) && defined(TIMSK5) && defined(OCIE5A)
+      case 5:
+        OCR5A = ocr;
+        timer5_toggle_count = toggle_count;
+        bitWrite(TIMSK5, OCIE5A, 1);
+        break;
+#endif
+
+    }
+  }
+}
+
+
+// XXX: this function only works properly for timer 2 (the only one we use
+// currently).  for the others, it should end the tone, but won't restore
+// proper PWM functionality for the timer.
+void disableTimer(uint8_t _timer)
+{
+  switch (_timer)
+  {
+    case 0:
+      #if defined(TIMSK0)
+        TIMSK0 = 0;
+      #elif defined(TIMSK)
+        TIMSK = 0; // atmega32
+      #endif
+      break;
+
+#if defined(TIMSK1) && defined(OCIE1A)
+    case 1:
+      bitWrite(TIMSK1, OCIE1A, 0);
+      break;
+#endif
+
+    case 2:
+      #if defined(TIMSK2) && defined(OCIE2A)
+        bitWrite(TIMSK2, OCIE2A, 0); // disable interrupt
+      #endif
+      #if defined(TCCR2A) && defined(WGM20)
+        TCCR2A = (1 << WGM20);
+      #endif
+      #if defined(TCCR2B) && defined(CS22)
+        TCCR2B = (TCCR2B & 0b11111000) | (1 << CS22);
+      #endif
+      #if defined(OCR2A)
+        OCR2A = 0;
+      #endif
+      break;
+
+#if defined(TIMSK3)
+    case 3:
+      TIMSK3 = 0;
+      break;
+#endif
+
+#if defined(TIMSK4)
+    case 4:
+      TIMSK4 = 0;
+      break;
+#endif
+
+#if defined(TIMSK5)
+    case 5:
+      TIMSK5 = 0;
+      break;
+#endif
+  }
+}
+
+
+void noTone(uint8_t _pin)
+{
+  int8_t _timer = -1;
+  
+  for (int i = 0; i < AVAILABLE_TONE_PINS; i++) {
+    if (tone_pins[i] == _pin) {
+      _timer = pgm_read_byte(tone_pin_to_timer_PGM + i);
+      tone_pins[i] = 255;
+    }
+  }
+  
+  disableTimer(_timer);
+
+  digitalWrite(_pin, 0);
+}
+
+#if 0
+#if !defined(__AVR_ATmega8__)
+ISR(TIMER0_COMPA_vect)
+{
+  if (timer0_toggle_count != 0)
+  {
+    // toggle the pin
+    *timer0_pin_port ^= timer0_pin_mask;
+
+    if (timer0_toggle_count > 0)
+      timer0_toggle_count--;
+  }
+  else
+  {
+    disableTimer(0);
+    *timer0_pin_port &= ~(timer0_pin_mask);  // keep pin low after stop
+  }
+}
+#endif
+
+
+ISR(TIMER1_COMPA_vect)
+{
+  if (timer1_toggle_count != 0)
+  {
+    // toggle the pin
+    *timer1_pin_port ^= timer1_pin_mask;
+
+    if (timer1_toggle_count > 0)
+      timer1_toggle_count--;
+  }
+  else
+  {
+    disableTimer(1);
+    *timer1_pin_port &= ~(timer1_pin_mask);  // keep pin low after stop
+  }
+}
+#endif
+
+
+ISR(TIMER2_COMPA_vect)
+{
+
+  if (timer2_toggle_count != 0)
+  {
+    // toggle the pin
+    *timer2_pin_port ^= timer2_pin_mask;
+
+    if (timer2_toggle_count > 0)
+      timer2_toggle_count--;
+  }
+  else
+  {
+    // need to call noTone() so that the tone_pins[] entry is reset, so the
+    // timer gets initialized next time we call tone().
+    // XXX: this assumes timer 2 is always the first one used.
+    noTone(tone_pins[0]);
+//    disableTimer(2);
+//    *timer2_pin_port &= ~(timer2_pin_mask);  // keep pin low after stop
+  }
+}
+
+
+
+//#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+#if 0
+
+ISR(TIMER3_COMPA_vect)
+{
+  if (timer3_toggle_count != 0)
+  {
+    // toggle the pin
+    *timer3_pin_port ^= timer3_pin_mask;
+
+    if (timer3_toggle_count > 0)
+      timer3_toggle_count--;
+  }
+  else
+  {
+    disableTimer(3);
+    *timer3_pin_port &= ~(timer3_pin_mask);  // keep pin low after stop
+  }
+}
+
+ISR(TIMER4_COMPA_vect)
+{
+  if (timer4_toggle_count != 0)
+  {
+    // toggle the pin
+    *timer4_pin_port ^= timer4_pin_mask;
+
+    if (timer4_toggle_count > 0)
+      timer4_toggle_count--;
+  }
+  else
+  {
+    disableTimer(4);
+    *timer4_pin_port &= ~(timer4_pin_mask);  // keep pin low after stop
+  }
+}
+
+ISR(TIMER5_COMPA_vect)
+{
+  if (timer5_toggle_count != 0)
+  {
+    // toggle the pin
+    *timer5_pin_port ^= timer5_pin_mask;
+
+    if (timer5_toggle_count > 0)
+      timer5_toggle_count--;
+  }
+  else
+  {
+    disableTimer(5);
+    *timer5_pin_port &= ~(timer5_pin_mask);  // keep pin low after stop
+  }
+}
+
+#endif
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/USBAPI.h b/lib/usbhost/arduino-1.0.1/cores/arduino/USBAPI.h
new file mode 100644
index 0000000000..d5abdb690d
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/USBAPI.h
@@ -0,0 +1,195 @@
+
+
+#ifndef __USBAPI__
+#define __USBAPI__
+
+#if defined(USBCON)
+
+//================================================================================
+//================================================================================
+//	USB
+
+class USBDevice_
+{
+public:
+	USBDevice_();
+	bool configured();
+
+	void attach();
+	void detach();	// Serial port goes down too...
+	void poll();
+};
+extern USBDevice_ USBDevice;
+
+//================================================================================
+//================================================================================
+//	Serial over CDC (Serial1 is the physical port)
+
+class Serial_ : public Stream
+{
+private:
+	ring_buffer *_cdc_rx_buffer;
+public:
+	void begin(uint16_t baud_count);
+	void end(void);
+
+	virtual int available(void);
+	virtual void accept(void);
+	virtual int peek(void);
+	virtual int read(void);
+	virtual void flush(void);
+	virtual size_t write(uint8_t);
+	operator bool();
+};
+extern Serial_ Serial;
+
+//================================================================================
+//================================================================================
+//	Mouse
+
+#define MOUSE_LEFT 1
+#define MOUSE_RIGHT 2
+#define MOUSE_MIDDLE 4
+#define MOUSE_ALL (MOUSE_LEFT | MOUSE_RIGHT | MOUSE_MIDDLE)
+
+class Mouse_
+{
+private:
+	uint8_t _buttons;
+	void buttons(uint8_t b);
+public:
+	Mouse_(void);
+	void begin(void);
+	void end(void);
+	void click(uint8_t b = MOUSE_LEFT);
+	void move(signed char x, signed char y, signed char wheel = 0);	
+	void press(uint8_t b = MOUSE_LEFT);		// press LEFT by default
+	void release(uint8_t b = MOUSE_LEFT);	// release LEFT by default
+	bool isPressed(uint8_t b = MOUSE_LEFT);	// check LEFT by default
+};
+extern Mouse_ Mouse;
+
+//================================================================================
+//================================================================================
+//	Keyboard
+
+#define KEY_LEFT_CTRL		0x80
+#define KEY_LEFT_SHIFT		0x81
+#define KEY_LEFT_ALT		0x82
+#define KEY_LEFT_GUI		0x83
+#define KEY_RIGHT_CTRL		0x84
+#define KEY_RIGHT_SHIFT		0x85
+#define KEY_RIGHT_ALT		0x86
+#define KEY_RIGHT_GUI		0x87
+
+#define KEY_UP_ARROW		0xDA
+#define KEY_DOWN_ARROW		0xD9
+#define KEY_LEFT_ARROW		0xD8
+#define KEY_RIGHT_ARROW		0xD7
+#define KEY_BACKSPACE		0xB2
+#define KEY_TAB				0xB3
+#define KEY_RETURN			0xB0
+#define KEY_ESC				0xB1
+#define KEY_INSERT			0xD1
+#define KEY_DELETE			0xD4
+#define KEY_PAGE_UP			0xD3
+#define KEY_PAGE_DOWN		0xD6
+#define KEY_HOME			0xD2
+#define KEY_END				0xD5
+#define KEY_CAPS_LOCK		0xC1
+#define KEY_F1				0xC2
+#define KEY_F2				0xC3
+#define KEY_F3				0xC4
+#define KEY_F4				0xC5
+#define KEY_F5				0xC6
+#define KEY_F6				0xC7
+#define KEY_F7				0xC8
+#define KEY_F8				0xC9
+#define KEY_F9				0xCA
+#define KEY_F10				0xCB
+#define KEY_F11				0xCC
+#define KEY_F12				0xCD
+
+//	Low level key report: up to 6 keys and shift, ctrl etc at once
+typedef struct
+{
+	uint8_t modifiers;
+	uint8_t reserved;
+	uint8_t keys[6];
+} KeyReport;
+
+class Keyboard_ : public Print
+{
+private:
+	KeyReport _keyReport;
+	void sendReport(KeyReport* keys);
+public:
+	Keyboard_(void);
+	void begin(void);
+	void end(void);
+	virtual size_t write(uint8_t k);
+	virtual size_t press(uint8_t k);
+	virtual size_t release(uint8_t k);
+	virtual void releaseAll(void);
+};
+extern Keyboard_ Keyboard;
+
+//================================================================================
+//================================================================================
+//	Low level API
+
+typedef struct
+{
+	uint8_t bmRequestType;
+	uint8_t bRequest;
+	uint8_t wValueL;
+	uint8_t wValueH;
+	uint16_t wIndex;
+	uint16_t wLength;
+} Setup;
+
+//================================================================================
+//================================================================================
+//	HID 'Driver'
+
+int		HID_GetInterface(uint8_t* interfaceNum);
+int		HID_GetDescriptor(int i);
+bool	HID_Setup(Setup& setup);
+void	HID_SendReport(uint8_t id, const void* data, int len);
+
+//================================================================================
+//================================================================================
+//	MSC 'Driver'
+
+int		MSC_GetInterface(uint8_t* interfaceNum);
+int		MSC_GetDescriptor(int i);
+bool	MSC_Setup(Setup& setup);
+bool	MSC_Data(uint8_t rx,uint8_t tx);
+
+//================================================================================
+//================================================================================
+//	CSC 'Driver'
+
+int		CDC_GetInterface(uint8_t* interfaceNum);
+int		CDC_GetDescriptor(int i);
+bool	CDC_Setup(Setup& setup);
+
+//================================================================================
+//================================================================================
+
+#define TRANSFER_PGM		0x80
+#define TRANSFER_RELEASE	0x40
+#define TRANSFER_ZERO		0x20
+
+int USB_SendControl(uint8_t flags, const void* d, int len);
+int USB_RecvControl(void* d, int len);
+
+uint8_t	USB_Available(uint8_t ep);
+int USB_Send(uint8_t ep, const void* data, int len);	// blocking
+int USB_Recv(uint8_t ep, void* data, int len);		// non-blocking
+int USB_Recv(uint8_t ep);							// non-blocking
+void USB_Flush(uint8_t ep);
+
+#endif
+
+#endif /* if defined(USBCON) */
\ No newline at end of file
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/USBCore.cpp b/lib/usbhost/arduino-1.0.1/cores/arduino/USBCore.cpp
new file mode 100644
index 0000000000..6766be61ab
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/USBCore.cpp
@@ -0,0 +1,672 @@
+
+
+/* Copyright (c) 2010, Peter Barrett  
+**  
+** Permission to use, copy, modify, and/or distribute this software for  
+** any purpose with or without fee is hereby granted, provided that the  
+** above copyright notice and this permission notice appear in all copies.  
+** 
+** THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL  
+** WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED  
+** WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR  
+** BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES  
+** OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,  
+** WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,  
+** ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS  
+** SOFTWARE.  
+*/
+
+#include "Platform.h"
+#include "USBAPI.h"
+#include "USBDesc.h"
+
+#if defined(USBCON)
+
+#define EP_TYPE_CONTROL				0x00
+#define EP_TYPE_BULK_IN				0x81
+#define EP_TYPE_BULK_OUT			0x80
+#define EP_TYPE_INTERRUPT_IN		0xC1
+#define EP_TYPE_INTERRUPT_OUT		0xC0
+#define EP_TYPE_ISOCHRONOUS_IN		0x41
+#define EP_TYPE_ISOCHRONOUS_OUT		0x40
+
+/** Pulse generation counters to keep track of the number of milliseconds remaining for each pulse type */
+#define TX_RX_LED_PULSE_MS 100
+volatile u8 TxLEDPulse; /**< Milliseconds remaining for data Tx LED pulse */
+volatile u8 RxLEDPulse; /**< Milliseconds remaining for data Rx LED pulse */
+
+//==================================================================
+//==================================================================
+
+extern const u16 STRING_LANGUAGE[] PROGMEM;
+extern const u16 STRING_IPRODUCT[] PROGMEM;
+extern const u16 STRING_IMANUFACTURER[] PROGMEM;
+extern const DeviceDescriptor USB_DeviceDescriptor PROGMEM;
+extern const DeviceDescriptor USB_DeviceDescriptorA PROGMEM;
+
+const u16 STRING_LANGUAGE[2] = {
+	(3<<8) | (2+2),
+	0x0409	// English
+};
+
+const u16 STRING_IPRODUCT[17] = {
+	(3<<8) | (2+2*16),
+#if USB_PID == 0x8036	
+	'A','r','d','u','i','n','o',' ','L','e','o','n','a','r','d','o'
+#else
+	'U','S','B',' ','I','O',' ','B','o','a','r','d',' ',' ',' ',' '
+#endif
+};
+
+const u16 STRING_IMANUFACTURER[12] = {
+	(3<<8) | (2+2*11),
+#if USB_VID == 0x2341
+	'A','r','d','u','i','n','o',' ','L','L','C'
+#else
+	'U','n','k','n','o','w','n',' ',' ',' ',' '
+#endif
+};
+
+#ifdef CDC_ENABLED
+#define DEVICE_CLASS 0x02
+#else
+#define DEVICE_CLASS 0x00
+#endif
+
+//	DEVICE DESCRIPTOR
+const DeviceDescriptor USB_DeviceDescriptor =
+	D_DEVICE(0x00,0x00,0x00,64,USB_VID,USB_PID,0x100,IMANUFACTURER,IPRODUCT,0,1);
+
+const DeviceDescriptor USB_DeviceDescriptorA =
+	D_DEVICE(DEVICE_CLASS,0x00,0x00,64,USB_VID,USB_PID,0x100,IMANUFACTURER,IPRODUCT,0,1);
+
+//==================================================================
+//==================================================================
+
+volatile u8 _usbConfiguration = 0;
+
+static inline void WaitIN(void)
+{
+	while (!(UEINTX & (1<<TXINI)));
+}
+
+static inline void ClearIN(void)
+{
+	UEINTX = ~(1<<TXINI);
+}
+
+static inline void WaitOUT(void)
+{
+	while (!(UEINTX & (1<<RXOUTI)))
+		;
+}
+
+static inline u8 WaitForINOrOUT()
+{
+	while (!(UEINTX & ((1<<TXINI)|(1<<RXOUTI))))
+		;
+	return (UEINTX & (1<<RXOUTI)) == 0;
+}
+
+static inline void ClearOUT(void)
+{
+	UEINTX = ~(1<<RXOUTI);
+}
+
+void Recv(volatile u8* data, u8 count)
+{
+	while (count--)
+		*data++ = UEDATX;
+	
+	RXLED1;					// light the RX LED
+	RxLEDPulse = TX_RX_LED_PULSE_MS;	
+}
+
+static inline u8 Recv8()
+{
+	RXLED1;					// light the RX LED
+	RxLEDPulse = TX_RX_LED_PULSE_MS;
+
+	return UEDATX;	
+}
+
+static inline void Send8(u8 d)
+{
+	UEDATX = d;
+}
+
+static inline void SetEP(u8 ep)
+{
+	UENUM = ep;
+}
+
+static inline u8 FifoByteCount()
+{
+	return UEBCLX;
+}
+
+static inline u8 ReceivedSetupInt()
+{
+	return UEINTX & (1<<RXSTPI);
+}
+
+static inline void ClearSetupInt()
+{
+	UEINTX = ~((1<<RXSTPI) | (1<<RXOUTI) | (1<<TXINI));
+}
+
+static inline void Stall()
+{
+	UECONX = (1<<STALLRQ) | (1<<EPEN);
+}
+
+static inline u8 ReadWriteAllowed()
+{
+	return UEINTX & (1<<RWAL);
+}
+
+static inline u8 Stalled()
+{
+	return UEINTX & (1<<STALLEDI);
+}
+
+static inline u8 FifoFree()
+{
+	return UEINTX & (1<<FIFOCON);
+}
+
+static inline void ReleaseRX()
+{
+	UEINTX = 0x6B;	// FIFOCON=0 NAKINI=1 RWAL=1 NAKOUTI=0 RXSTPI=1 RXOUTI=0 STALLEDI=1 TXINI=1
+}
+
+static inline void ReleaseTX()
+{
+	UEINTX = 0x3A;	// FIFOCON=0 NAKINI=0 RWAL=1 NAKOUTI=1 RXSTPI=1 RXOUTI=0 STALLEDI=1 TXINI=0
+}
+
+static inline u8 FrameNumber()
+{
+	return UDFNUML;
+}
+
+//==================================================================
+//==================================================================
+
+u8 USBGetConfiguration(void)
+{
+	return _usbConfiguration;
+}
+
+#define USB_RECV_TIMEOUT
+class LockEP
+{
+	u8 _sreg;
+public:
+	LockEP(u8 ep) : _sreg(SREG)
+	{
+		cli();
+		SetEP(ep & 7);
+	}
+	~LockEP()
+	{
+		SREG = _sreg;
+	}
+};
+
+//	Number of bytes, assumes a rx endpoint
+u8 USB_Available(u8 ep)
+{
+	LockEP lock(ep);
+	return FifoByteCount();
+}
+
+//	Non Blocking receive
+//	Return number of bytes read
+int USB_Recv(u8 ep, void* d, int len)
+{
+	if (!_usbConfiguration || len < 0)
+		return -1;
+	
+	LockEP lock(ep);
+	u8 n = FifoByteCount();
+	len = min(n,len);
+	n = len;
+	u8* dst = (u8*)d;
+	while (n--)
+		*dst++ = Recv8();
+	if (len && !FifoByteCount())	// release empty buffer
+		ReleaseRX();
+	
+	return len;
+}
+
+//	Recv 1 byte if ready
+int USB_Recv(u8 ep)
+{
+	u8 c;
+	if (USB_Recv(ep,&c,1) != 1)
+		return -1;
+	return c;
+}
+
+//	Space in send EP
+u8 USB_SendSpace(u8 ep)
+{
+	LockEP lock(ep);
+	if (!ReadWriteAllowed())
+		return 0;
+	return 64 - FifoByteCount();
+}
+
+//	Blocking Send of data to an endpoint
+int USB_Send(u8 ep, const void* d, int len)
+{
+	if (!_usbConfiguration)
+		return -1;
+
+	int r = len;
+	const u8* data = (const u8*)d;
+	u8 zero = ep & TRANSFER_ZERO;
+	u8 timeout = 250;		// 250ms timeout on send? TODO
+	while (len)
+	{
+		u8 n = USB_SendSpace(ep);
+		if (n == 0)
+		{
+			if (!(--timeout))
+				return -1;
+			delay(1);
+			continue;
+		}
+
+		if (n > len)
+			n = len;
+		len -= n;
+		{
+			LockEP lock(ep);
+			if (ep & TRANSFER_ZERO)
+			{
+				while (n--)
+					Send8(0);
+			}
+			else if (ep & TRANSFER_PGM)
+			{
+				while (n--)
+					Send8(pgm_read_byte(data++));
+			}
+			else
+			{
+				while (n--)
+					Send8(*data++);
+			}
+			if (!ReadWriteAllowed() || ((len == 0) && (ep & TRANSFER_RELEASE)))	// Release full buffer
+				ReleaseTX();
+		}
+	}
+	TXLED1;					// light the TX LED
+	TxLEDPulse = TX_RX_LED_PULSE_MS;
+	return r;
+}
+
+extern const u8 _initEndpoints[] PROGMEM;
+const u8 _initEndpoints[] = 
+{
+	0,
+	
+#ifdef CDC_ENABLED
+	EP_TYPE_INTERRUPT_IN,		// CDC_ENDPOINT_ACM
+	EP_TYPE_BULK_OUT,			// CDC_ENDPOINT_OUT
+	EP_TYPE_BULK_IN,			// CDC_ENDPOINT_IN
+#endif
+
+#ifdef HID_ENABLED
+	EP_TYPE_INTERRUPT_IN		// HID_ENDPOINT_INT
+#endif
+};
+
+#define EP_SINGLE_64 0x32	// EP0
+#define EP_DOUBLE_64 0x36	// Other endpoints
+
+static
+void InitEP(u8 index, u8 type, u8 size)
+{
+	UENUM = index;
+	UECONX = 1;
+	UECFG0X = type;
+	UECFG1X = size;
+}
+
+static
+void InitEndpoints()
+{
+	for (u8 i = 1; i < sizeof(_initEndpoints); i++)
+	{
+		UENUM = i;
+		UECONX = 1;
+		UECFG0X = pgm_read_byte(_initEndpoints+i);
+		UECFG1X = EP_DOUBLE_64;
+	}
+	UERST = 0x7E;	// And reset them
+	UERST = 0;
+}
+
+//	Handle CLASS_INTERFACE requests
+static
+bool ClassInterfaceRequest(Setup& setup)
+{
+	u8 i = setup.wIndex;
+
+#ifdef CDC_ENABLED
+	if (CDC_ACM_INTERFACE == i)
+		return CDC_Setup(setup);
+#endif
+
+#ifdef HID_ENABLED
+	if (HID_INTERFACE == i)
+		return HID_Setup(setup);
+#endif
+	return false;
+}
+
+int _cmark;
+int _cend;
+void InitControl(int end)
+{
+	SetEP(0);
+	_cmark = 0;
+	_cend = end;
+}
+
+static
+bool SendControl(u8 d)
+{
+	if (_cmark < _cend)
+	{
+		if (!WaitForINOrOUT())
+			return false;
+		Send8(d);
+		if (!((_cmark + 1) & 0x3F))
+			ClearIN();	// Fifo is full, release this packet
+	}
+	_cmark++;
+	return true;
+};
+
+//	Clipped by _cmark/_cend
+int USB_SendControl(u8 flags, const void* d, int len)
+{
+	int sent = len;
+	const u8* data = (const u8*)d;
+	bool pgm = flags & TRANSFER_PGM;
+	while (len--)
+	{
+		u8 c = pgm ? pgm_read_byte(data++) : *data++;
+		if (!SendControl(c))
+			return -1;
+	}
+	return sent;
+}
+
+//	Does not timeout or cross fifo boundaries
+//	Will only work for transfers <= 64 bytes
+//	TODO
+int USB_RecvControl(void* d, int len)
+{
+	WaitOUT();
+	Recv((u8*)d,len);
+	ClearOUT();
+	return len;
+}
+
+int SendInterfaces()
+{
+	int total = 0;
+	u8 interfaces = 0;
+
+#ifdef CDC_ENABLED
+	total = CDC_GetInterface(&interfaces);
+#endif
+
+#ifdef HID_ENABLED
+	total += HID_GetInterface(&interfaces);
+#endif
+
+	return interfaces;
+}
+
+//	Construct a dynamic configuration descriptor
+//	This really needs dynamic endpoint allocation etc
+//	TODO
+static
+bool SendConfiguration(int maxlen)
+{
+	//	Count and measure interfaces
+	InitControl(0);	
+	int interfaces = SendInterfaces();
+	ConfigDescriptor config = D_CONFIG(_cmark + sizeof(ConfigDescriptor),interfaces);
+
+	//	Now send them
+	InitControl(maxlen);
+	USB_SendControl(0,&config,sizeof(ConfigDescriptor));
+	SendInterfaces();
+	return true;
+}
+
+u8 _cdcComposite = 0;
+
+static
+bool SendDescriptor(Setup& setup)
+{
+	u8 t = setup.wValueH;
+	if (USB_CONFIGURATION_DESCRIPTOR_TYPE == t)
+		return SendConfiguration(setup.wLength);
+
+	InitControl(setup.wLength);
+#ifdef HID_ENABLED
+	if (HID_REPORT_DESCRIPTOR_TYPE == t)
+		return HID_GetDescriptor(t);
+#endif
+
+	u8 desc_length = 0;
+	const u8* desc_addr = 0;
+	if (USB_DEVICE_DESCRIPTOR_TYPE == t)
+	{
+		if (setup.wLength == 8)
+			_cdcComposite = 1;
+		desc_addr = _cdcComposite ?  (const u8*)&USB_DeviceDescriptorA : (const u8*)&USB_DeviceDescriptor;
+	}
+	else if (USB_STRING_DESCRIPTOR_TYPE == t)
+	{
+		if (setup.wValueL == 0)
+			desc_addr = (const u8*)&STRING_LANGUAGE;
+		else if (setup.wValueL == IPRODUCT) 
+			desc_addr = (const u8*)&STRING_IPRODUCT;
+		else if (setup.wValueL == IMANUFACTURER)
+			desc_addr = (const u8*)&STRING_IMANUFACTURER;
+		else
+			return false;
+	}
+
+	if (desc_addr == 0)
+		return false;
+	if (desc_length == 0)
+		desc_length = pgm_read_byte(desc_addr);
+
+	USB_SendControl(TRANSFER_PGM,desc_addr,desc_length);
+	return true;
+}
+
+//	Endpoint 0 interrupt
+ISR(USB_COM_vect)
+{
+    SetEP(0);
+	if (!ReceivedSetupInt())
+		return;
+
+	Setup setup;
+	Recv((u8*)&setup,8);
+	ClearSetupInt();
+
+	u8 requestType = setup.bmRequestType;
+	if (requestType & REQUEST_DEVICETOHOST)
+		WaitIN();
+	else
+		ClearIN();
+
+    bool ok = true;
+	if (REQUEST_STANDARD == (requestType & REQUEST_TYPE))
+	{
+		//	Standard Requests
+		u8 r = setup.bRequest;
+		if (GET_STATUS == r)
+		{
+			Send8(0);		// TODO
+			Send8(0);
+		}
+		else if (CLEAR_FEATURE == r)
+		{
+		}
+		else if (SET_FEATURE == r)
+		{
+		}
+		else if (SET_ADDRESS == r)
+		{
+			WaitIN();
+			UDADDR = setup.wValueL | (1<<ADDEN);
+		}
+		else if (GET_DESCRIPTOR == r)
+		{
+			ok = SendDescriptor(setup);
+		}
+		else if (SET_DESCRIPTOR == r)
+		{
+			ok = false;
+		}
+		else if (GET_CONFIGURATION == r)
+		{
+			Send8(1);
+		}
+		else if (SET_CONFIGURATION == r)
+		{
+			if (REQUEST_DEVICE == (requestType & REQUEST_RECIPIENT))
+			{
+				InitEndpoints();
+				_usbConfiguration = setup.wValueL;
+			} else
+				ok = false;
+		}
+		else if (GET_INTERFACE == r)
+		{
+		}
+		else if (SET_INTERFACE == r)
+		{
+		}
+	}
+	else
+	{
+		InitControl(setup.wLength);		//	Max length of transfer
+		ok = ClassInterfaceRequest(setup);
+	}
+
+	if (ok)
+		ClearIN();
+	else
+	{
+		Stall();
+	}
+}
+
+void USB_Flush(u8 ep)
+{
+	SetEP(ep);
+	if (FifoByteCount())
+		ReleaseTX();
+}
+
+//	General interrupt
+ISR(USB_GEN_vect)
+{
+	u8 udint = UDINT;
+	UDINT = 0;
+
+	//	End of Reset
+	if (udint & (1<<EORSTI))
+	{
+		InitEP(0,EP_TYPE_CONTROL,EP_SINGLE_64);	// init ep0
+		_usbConfiguration = 0;			// not configured yet
+		UEIENX = 1 << RXSTPE;			// Enable interrupts for ep0
+	}
+
+	//	Start of Frame - happens every millisecond so we use it for TX and RX LED one-shot timing, too
+	if (udint & (1<<SOFI))
+	{
+#ifdef CDC_ENABLED
+		USB_Flush(CDC_TX);				// Send a tx frame if found
+		while (USB_Available(CDC_RX))	// Handle received bytes (if any)
+			Serial.accept();
+#endif
+		
+		// check whether the one-shot period has elapsed.  if so, turn off the LED
+		if (TxLEDPulse && !(--TxLEDPulse))
+			TXLED0;
+		if (RxLEDPulse && !(--RxLEDPulse))
+			RXLED0;
+	}
+}
+
+//	VBUS or counting frames
+//	Any frame counting?
+u8 USBConnected()
+{
+	u8 f = UDFNUML;
+	delay(3);
+	return f != UDFNUML;
+}
+
+//=======================================================================
+//=======================================================================
+
+USBDevice_ USBDevice;
+
+USBDevice_::USBDevice_()
+{
+}
+
+void USBDevice_::attach()
+{
+	_usbConfiguration = 0;
+	UHWCON = 0x01;						// power internal reg
+	USBCON = (1<<USBE)|(1<<FRZCLK);		// clock frozen, usb enabled
+	PLLCSR = 0x12;						// Need 16 MHz xtal
+	while (!(PLLCSR & (1<<PLOCK)))		// wait for lock pll
+		;
+
+	// Some tests on specific versions of macosx (10.7.3), reported some
+	// strange behaviuors when the board is reset using the serial
+	// port touch at 1200 bps. This delay fixes this behaviour.
+	delay(1);
+
+	USBCON = ((1<<USBE)|(1<<OTGPADE));	// start USB clock
+	UDIEN = (1<<EORSTE)|(1<<SOFE);		// Enable interrupts for EOR (End of Reset) and SOF (start of frame)
+	UDCON = 0;							// enable attach resistor
+	
+	TX_RX_LED_INIT;
+}
+
+void USBDevice_::detach()
+{
+}
+
+//	Check for interrupts
+//	TODO: VBUS detection
+bool USBDevice_::configured()
+{
+	return _usbConfiguration;
+}
+
+void USBDevice_::poll()
+{
+}
+
+#endif /* if defined(USBCON) */
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/USBCore.h b/lib/usbhost/arduino-1.0.1/cores/arduino/USBCore.h
new file mode 100644
index 0000000000..8d13806896
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/USBCore.h
@@ -0,0 +1,303 @@
+
+// Copyright (c) 2010, Peter Barrett 
+/*
+** Permission to use, copy, modify, and/or distribute this software for  
+** any purpose with or without fee is hereby granted, provided that the  
+** above copyright notice and this permission notice appear in all copies.  
+**  
+** THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL  
+** WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED  
+** WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR  
+** BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES  
+** OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,  
+** WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,  
+** ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS  
+** SOFTWARE.  
+*/
+
+#ifndef __USBCORE_H__
+#define __USBCORE_H__
+
+//	Standard requests
+#define GET_STATUS			0
+#define CLEAR_FEATURE		1
+#define SET_FEATURE			3
+#define SET_ADDRESS			5
+#define GET_DESCRIPTOR		6
+#define SET_DESCRIPTOR		7
+#define GET_CONFIGURATION	8
+#define SET_CONFIGURATION	9
+#define GET_INTERFACE		10
+#define SET_INTERFACE		11
+
+
+// bmRequestType
+#define REQUEST_HOSTTODEVICE	0x00
+#define REQUEST_DEVICETOHOST	0x80
+#define REQUEST_DIRECTION		0x80
+
+#define REQUEST_STANDARD		0x00
+#define REQUEST_CLASS			0x20
+#define REQUEST_VENDOR			0x40
+#define REQUEST_TYPE			0x60
+
+#define REQUEST_DEVICE			0x00
+#define REQUEST_INTERFACE		0x01
+#define REQUEST_ENDPOINT		0x02
+#define REQUEST_OTHER			0x03
+#define REQUEST_RECIPIENT		0x03
+
+#define REQUEST_DEVICETOHOST_CLASS_INTERFACE  (REQUEST_DEVICETOHOST + REQUEST_CLASS + REQUEST_INTERFACE)
+#define REQUEST_HOSTTODEVICE_CLASS_INTERFACE  (REQUEST_HOSTTODEVICE + REQUEST_CLASS + REQUEST_INTERFACE)
+
+//	Class requests
+
+#define CDC_SET_LINE_CODING			0x20
+#define CDC_GET_LINE_CODING			0x21
+#define CDC_SET_CONTROL_LINE_STATE	0x22
+
+#define MSC_RESET					0xFF
+#define MSC_GET_MAX_LUN				0xFE
+
+#define HID_GET_REPORT				0x01
+#define HID_GET_IDLE				0x02
+#define HID_GET_PROTOCOL			0x03
+#define HID_SET_REPORT				0x09
+#define HID_SET_IDLE				0x0A
+#define HID_SET_PROTOCOL			0x0B
+
+//	Descriptors
+
+#define USB_DEVICE_DESC_SIZE 18
+#define USB_CONFIGUARTION_DESC_SIZE 9
+#define USB_INTERFACE_DESC_SIZE 9
+#define USB_ENDPOINT_DESC_SIZE 7
+
+#define USB_DEVICE_DESCRIPTOR_TYPE             1
+#define USB_CONFIGURATION_DESCRIPTOR_TYPE      2
+#define USB_STRING_DESCRIPTOR_TYPE             3
+#define USB_INTERFACE_DESCRIPTOR_TYPE          4
+#define USB_ENDPOINT_DESCRIPTOR_TYPE           5
+
+#define USB_DEVICE_CLASS_COMMUNICATIONS        0x02
+#define USB_DEVICE_CLASS_HUMAN_INTERFACE       0x03
+#define USB_DEVICE_CLASS_STORAGE               0x08
+#define USB_DEVICE_CLASS_VENDOR_SPECIFIC       0xFF
+
+#define USB_CONFIG_POWERED_MASK                0x40
+#define USB_CONFIG_BUS_POWERED                 0x80
+#define USB_CONFIG_SELF_POWERED                0xC0
+#define USB_CONFIG_REMOTE_WAKEUP               0x20
+
+// bMaxPower in Configuration Descriptor
+#define USB_CONFIG_POWER_MA(mA)                ((mA)/2)
+
+// bEndpointAddress in Endpoint Descriptor
+#define USB_ENDPOINT_DIRECTION_MASK            0x80
+#define USB_ENDPOINT_OUT(addr)                 ((addr) | 0x00)
+#define USB_ENDPOINT_IN(addr)                  ((addr) | 0x80)
+
+#define USB_ENDPOINT_TYPE_MASK                 0x03
+#define USB_ENDPOINT_TYPE_CONTROL              0x00
+#define USB_ENDPOINT_TYPE_ISOCHRONOUS          0x01
+#define USB_ENDPOINT_TYPE_BULK                 0x02
+#define USB_ENDPOINT_TYPE_INTERRUPT            0x03
+
+#define TOBYTES(x) ((x) & 0xFF),(((x) >> 8) & 0xFF)
+
+#define CDC_V1_10                               0x0110
+#define CDC_COMMUNICATION_INTERFACE_CLASS       0x02
+
+#define CDC_CALL_MANAGEMENT                     0x01
+#define CDC_ABSTRACT_CONTROL_MODEL              0x02
+#define CDC_HEADER                              0x00
+#define CDC_ABSTRACT_CONTROL_MANAGEMENT         0x02
+#define CDC_UNION                               0x06
+#define CDC_CS_INTERFACE                        0x24
+#define CDC_CS_ENDPOINT                         0x25
+#define CDC_DATA_INTERFACE_CLASS                0x0A
+
+#define MSC_SUBCLASS_SCSI						0x06 
+#define MSC_PROTOCOL_BULK_ONLY					0x50 
+
+#define HID_HID_DESCRIPTOR_TYPE					0x21
+#define HID_REPORT_DESCRIPTOR_TYPE				0x22
+#define HID_PHYSICAL_DESCRIPTOR_TYPE			0x23
+
+
+//	Device
+typedef struct {
+	u8 len;				// 18
+	u8 dtype;			// 1 USB_DEVICE_DESCRIPTOR_TYPE
+	u16 usbVersion;		// 0x200
+	u8	deviceClass;
+	u8	deviceSubClass;
+	u8	deviceProtocol;
+	u8	packetSize0;	// Packet 0
+	u16	idVendor;
+	u16	idProduct;
+	u16	deviceVersion;	// 0x100
+	u8	iManufacturer;
+	u8	iProduct;
+	u8	iSerialNumber;
+	u8	bNumConfigurations;
+} DeviceDescriptor;
+
+//	Config
+typedef struct {
+	u8	len;			// 9
+	u8	dtype;			// 2
+	u16 clen;			// total length
+	u8	numInterfaces;
+	u8	config;
+	u8	iconfig;
+	u8	attributes;
+	u8	maxPower;
+} ConfigDescriptor;
+
+//	String
+
+//	Interface
+typedef struct
+{
+	u8 len;		// 9
+	u8 dtype;	// 4
+	u8 number;
+	u8 alternate;
+	u8 numEndpoints;
+	u8 interfaceClass;
+	u8 interfaceSubClass;
+	u8 protocol;
+	u8 iInterface;
+} InterfaceDescriptor;
+
+//	Endpoint
+typedef struct
+{
+	u8 len;		// 7
+	u8 dtype;	// 5
+	u8 addr;
+	u8 attr;
+	u16 packetSize;
+	u8 interval;
+} EndpointDescriptor;
+
+// Interface Association Descriptor
+// Used to bind 2 interfaces together in CDC compostite device
+typedef struct
+{
+	u8 len;				// 8
+	u8 dtype;			// 11
+	u8 firstInterface;
+	u8 interfaceCount;
+	u8 functionClass;
+	u8 funtionSubClass;
+	u8 functionProtocol;
+	u8 iInterface;
+} IADDescriptor;
+
+//	CDC CS interface descriptor
+typedef struct
+{
+	u8 len;		// 5
+	u8 dtype;	// 0x24
+	u8 subtype;
+	u8 d0;
+	u8 d1;
+} CDCCSInterfaceDescriptor;
+
+typedef struct
+{
+	u8 len;		// 4
+	u8 dtype;	// 0x24
+	u8 subtype;
+	u8 d0;
+} CDCCSInterfaceDescriptor4;
+
+typedef struct 
+{
+    u8	len;
+    u8 	dtype;		// 0x24
+    u8 	subtype;	// 1
+    u8 	bmCapabilities;
+    u8 	bDataInterface;
+} CMFunctionalDescriptor;
+	
+typedef struct 
+{
+    u8	len;
+    u8 	dtype;		// 0x24
+    u8 	subtype;	// 1
+    u8 	bmCapabilities;
+} ACMFunctionalDescriptor;
+
+typedef struct 
+{
+	//	IAD
+	IADDescriptor				iad;	// Only needed on compound device
+
+	//	Control
+	InterfaceDescriptor			cif;	// 
+	CDCCSInterfaceDescriptor	header;
+	CMFunctionalDescriptor		callManagement;			// Call Management
+	ACMFunctionalDescriptor		controlManagement;		// ACM
+	CDCCSInterfaceDescriptor	functionalDescriptor;	// CDC_UNION
+	EndpointDescriptor			cifin;
+
+	//	Data
+	InterfaceDescriptor			dif;
+	EndpointDescriptor			in;
+	EndpointDescriptor			out;
+} CDCDescriptor;
+
+typedef struct 
+{
+	InterfaceDescriptor			msc;
+	EndpointDescriptor			in;
+	EndpointDescriptor			out;
+} MSCDescriptor;
+
+typedef struct
+{
+	u8 len;			// 9
+	u8 dtype;		// 0x21
+	u8 addr;
+	u8	versionL;	// 0x101
+	u8	versionH;	// 0x101
+	u8	country;
+	u8	desctype;	// 0x22 report
+	u8	descLenL;
+	u8	descLenH;
+} HIDDescDescriptor;
+
+typedef struct 
+{
+	InterfaceDescriptor			hid;
+	HIDDescDescriptor			desc;
+	EndpointDescriptor			in;
+} HIDDescriptor;
+
+
+#define D_DEVICE(_class,_subClass,_proto,_packetSize0,_vid,_pid,_version,_im,_ip,_is,_configs) \
+	{ 18, 1, 0x200, _class,_subClass,_proto,_packetSize0,_vid,_pid,_version,_im,_ip,_is,_configs }
+
+#define D_CONFIG(_totalLength,_interfaces) \
+	{ 9, 2, _totalLength,_interfaces, 1, 0, USB_CONFIG_BUS_POWERED, USB_CONFIG_POWER_MA(500) }
+
+#define D_INTERFACE(_n,_numEndpoints,_class,_subClass,_protocol) \
+	{ 9, 4, _n, 0, _numEndpoints, _class,_subClass, _protocol, 0 }
+
+#define D_ENDPOINT(_addr,_attr,_packetSize, _interval) \
+	{ 7, 5, _addr,_attr,_packetSize, _interval }
+
+#define D_IAD(_firstInterface, _count, _class, _subClass, _protocol) \
+	{ 8, 11, _firstInterface, _count, _class, _subClass, _protocol, 0 }
+
+#define D_HIDREPORT(_descriptorLength) \
+	{ 9, 0x21, 0x1, 0x1, 0, 1, 0x22, _descriptorLength, 0 }
+
+#define D_CDCCS(_subtype,_d0,_d1)	{ 5, 0x24, _subtype, _d0, _d1 }
+#define D_CDCCS4(_subtype,_d0)		{ 4, 0x24, _subtype, _d0 }
+
+
+#endif
\ No newline at end of file
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/USBDesc.h b/lib/usbhost/arduino-1.0.1/cores/arduino/USBDesc.h
new file mode 100644
index 0000000000..900713e0f9
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/USBDesc.h
@@ -0,0 +1,63 @@
+
+
+/* Copyright (c) 2011, Peter Barrett  
+**  
+** Permission to use, copy, modify, and/or distribute this software for  
+** any purpose with or without fee is hereby granted, provided that the  
+** above copyright notice and this permission notice appear in all copies.  
+** 
+** THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL  
+** WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED  
+** WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR  
+** BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES  
+** OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,  
+** WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,  
+** ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS  
+** SOFTWARE.  
+*/
+
+#define CDC_ENABLED
+#define HID_ENABLED
+
+
+#ifdef CDC_ENABLED
+#define CDC_INTERFACE_COUNT	2
+#define CDC_ENPOINT_COUNT	3
+#else
+#define CDC_INTERFACE_COUNT	0
+#define CDC_ENPOINT_COUNT	0
+#endif
+
+#ifdef HID_ENABLED
+#define HID_INTERFACE_COUNT	1
+#define HID_ENPOINT_COUNT	1
+#else
+#define HID_INTERFACE_COUNT	0
+#define HID_ENPOINT_COUNT	0
+#endif
+
+#define CDC_ACM_INTERFACE	0	// CDC ACM
+#define CDC_DATA_INTERFACE	1	// CDC Data
+#define CDC_FIRST_ENDPOINT	1
+#define CDC_ENDPOINT_ACM	(CDC_FIRST_ENDPOINT)							// CDC First
+#define CDC_ENDPOINT_OUT	(CDC_FIRST_ENDPOINT+1)
+#define CDC_ENDPOINT_IN		(CDC_FIRST_ENDPOINT+2)
+
+#define HID_INTERFACE		(CDC_ACM_INTERFACE + CDC_INTERFACE_COUNT)		// HID Interface
+#define HID_FIRST_ENDPOINT	(CDC_FIRST_ENDPOINT + CDC_ENPOINT_COUNT)
+#define HID_ENDPOINT_INT	(HID_FIRST_ENDPOINT)
+
+#define INTERFACE_COUNT		(MSC_INTERFACE + MSC_INTERFACE_COUNT)
+
+#ifdef CDC_ENABLED
+#define CDC_RX CDC_ENDPOINT_OUT
+#define CDC_TX CDC_ENDPOINT_IN
+#endif
+
+#ifdef HID_ENABLED
+#define HID_TX HID_ENDPOINT_INT
+#endif
+
+#define IMANUFACTURER	1
+#define IPRODUCT		2
+
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/Udp.h b/lib/usbhost/arduino-1.0.1/cores/arduino/Udp.h
new file mode 100644
index 0000000000..dc5644b9df
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/Udp.h
@@ -0,0 +1,88 @@
+/*
+ *  Udp.cpp: Library to send/receive UDP packets.
+ *
+ * NOTE: UDP is fast, but has some important limitations (thanks to Warren Gray for mentioning these)
+ * 1) UDP does not guarantee the order in which assembled UDP packets are received. This
+ * might not happen often in practice, but in larger network topologies, a UDP
+ * packet can be received out of sequence. 
+ * 2) UDP does not guard against lost packets - so packets *can* disappear without the sender being
+ * aware of it. Again, this may not be a concern in practice on small local networks.
+ * For more information, see http://www.cafeaulait.org/course/week12/35.html
+ *
+ * MIT License:
+ * Copyright (c) 2008 Bjoern Hartmann
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * bjoern@cs.stanford.edu 12/30/2008
+ */
+
+#ifndef udp_h
+#define udp_h
+
+#include <Stream.h>
+#include <IPAddress.h>
+
+class UDP : public Stream {
+
+public:
+  virtual uint8_t begin(uint16_t) =0;	// initialize, start listening on specified port. Returns 1 if successful, 0 if there are no sockets available to use
+  virtual void stop() =0;  // Finish with the UDP socket
+
+  // Sending UDP packets
+  
+  // Start building up a packet to send to the remote host specific in ip and port
+  // Returns 1 if successful, 0 if there was a problem with the supplied IP address or port
+  virtual int beginPacket(IPAddress ip, uint16_t port) =0;
+  // Start building up a packet to send to the remote host specific in host and port
+  // Returns 1 if successful, 0 if there was a problem resolving the hostname or port
+  virtual int beginPacket(const char *host, uint16_t port) =0;
+  // Finish off this packet and send it
+  // Returns 1 if the packet was sent successfully, 0 if there was an error
+  virtual int endPacket() =0;
+  // Write a single byte into the packet
+  virtual size_t write(uint8_t) =0;
+  // Write size bytes from buffer into the packet
+  virtual size_t write(const uint8_t *buffer, size_t size) =0;
+
+  // Start processing the next available incoming packet
+  // Returns the size of the packet in bytes, or 0 if no packets are available
+  virtual int parsePacket() =0;
+  // Number of bytes remaining in the current packet
+  virtual int available() =0;
+  // Read a single byte from the current packet
+  virtual int read() =0;
+  // Read up to len bytes from the current packet and place them into buffer
+  // Returns the number of bytes read, or 0 if none are available
+  virtual int read(unsigned char* buffer, size_t len) =0;
+  // Read up to len characters from the current packet and place them into buffer
+  // Returns the number of characters read, or 0 if none are available
+  virtual int read(char* buffer, size_t len) =0;
+  // Return the next byte from the current packet without moving on to the next byte
+  virtual int peek() =0;
+  virtual void flush() =0;	// Finish reading the current packet
+
+  // Return the IP address of the host who sent the current incoming packet
+  virtual IPAddress remoteIP() =0;
+  // Return the port of the host who sent the current incoming packet
+  virtual uint16_t remotePort() =0;
+protected:
+  uint8_t* rawIPAddress(IPAddress& addr) { return addr.raw_address(); };
+};
+
+#endif
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/WCharacter.h b/lib/usbhost/arduino-1.0.1/cores/arduino/WCharacter.h
new file mode 100644
index 0000000000..79733b50a5
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/WCharacter.h
@@ -0,0 +1,168 @@
+/*
+ WCharacter.h - Character utility functions for Wiring & Arduino
+ Copyright (c) 2010 Hernando Barragan.  All right reserved.
+ 
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+ 
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ Lesser General Public License for more details.
+ 
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef Character_h
+#define Character_h
+
+#include <ctype.h>
+
+// WCharacter.h prototypes
+inline boolean isAlphaNumeric(int c) __attribute__((always_inline));
+inline boolean isAlpha(int c) __attribute__((always_inline));
+inline boolean isAscii(int c) __attribute__((always_inline));
+inline boolean isWhitespace(int c) __attribute__((always_inline));
+inline boolean isControl(int c) __attribute__((always_inline));
+inline boolean isDigit(int c) __attribute__((always_inline));
+inline boolean isGraph(int c) __attribute__((always_inline));
+inline boolean isLowerCase(int c) __attribute__((always_inline));
+inline boolean isPrintable(int c) __attribute__((always_inline));
+inline boolean isPunct(int c) __attribute__((always_inline));
+inline boolean isSpace(int c) __attribute__((always_inline));
+inline boolean isUpperCase(int c) __attribute__((always_inline));
+inline boolean isHexadecimalDigit(int c) __attribute__((always_inline));
+inline int toAscii(int c) __attribute__((always_inline));
+inline int toLowerCase(int c) __attribute__((always_inline));
+inline int toUpperCase(int c)__attribute__((always_inline));
+
+
+// Checks for an alphanumeric character. 
+// It is equivalent to (isalpha(c) || isdigit(c)).
+inline boolean isAlphaNumeric(int c) 
+{
+  return ( isalnum(c) == 0 ? false : true);
+}
+
+
+// Checks for an alphabetic character. 
+// It is equivalent to (isupper(c) || islower(c)).
+inline boolean isAlpha(int c)
+{
+  return ( isalpha(c) == 0 ? false : true);
+}
+
+
+// Checks whether c is a 7-bit unsigned char value 
+// that fits into the ASCII character set.
+inline boolean isAscii(int c)
+{
+  return ( isascii (c) == 0 ? false : true);
+}
+
+
+// Checks for a blank character, that is, a space or a tab.
+inline boolean isWhitespace(int c)
+{
+  return ( isblank (c) == 0 ? false : true);
+}
+
+
+// Checks for a control character.
+inline boolean isControl(int c)
+{
+  return ( iscntrl (c) == 0 ? false : true);
+}
+
+
+// Checks for a digit (0 through 9).
+inline boolean isDigit(int c)
+{
+  return ( isdigit (c) == 0 ? false : true);
+}
+
+
+// Checks for any printable character except space.
+inline boolean isGraph(int c)
+{
+  return ( isgraph (c) == 0 ? false : true);
+}
+
+
+// Checks for a lower-case character.
+inline boolean isLowerCase(int c)
+{
+  return (islower (c) == 0 ? false : true);
+}
+
+
+// Checks for any printable character including space.
+inline boolean isPrintable(int c)
+{
+  return ( isprint (c) == 0 ? false : true);
+}
+
+
+// Checks for any printable character which is not a space 
+// or an alphanumeric character.
+inline boolean isPunct(int c)
+{
+  return ( ispunct (c) == 0 ? false : true);
+}
+
+
+// Checks for white-space characters. For the avr-libc library, 
+// these are: space, formfeed ('\f'), newline ('\n'), carriage 
+// return ('\r'), horizontal tab ('\t'), and vertical tab ('\v').
+inline boolean isSpace(int c)
+{
+  return ( isspace (c) == 0 ? false : true);
+}
+
+
+// Checks for an uppercase letter.
+inline boolean isUpperCase(int c)
+{
+  return ( isupper (c) == 0 ? false : true);
+}
+
+
+// Checks for a hexadecimal digits, i.e. one of 0 1 2 3 4 5 6 7 
+// 8 9 a b c d e f A B C D E F.
+inline boolean isHexadecimalDigit(int c)
+{
+  return ( isxdigit (c) == 0 ? false : true);
+}
+
+
+// Converts c to a 7-bit unsigned char value that fits into the 
+// ASCII character set, by clearing the high-order bits.
+inline int toAscii(int c)
+{
+  return toascii (c);
+}
+
+
+// Warning:
+// Many people will be unhappy if you use this function. 
+// This function will convert accented letters into random 
+// characters.
+
+// Converts the letter c to lower case, if possible.
+inline int toLowerCase(int c)
+{
+  return tolower (c);
+}
+
+
+// Converts the letter c to upper case, if possible.
+inline int toUpperCase(int c)
+{
+  return toupper (c);
+}
+
+#endif
\ No newline at end of file
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/WInterrupts.c b/lib/usbhost/arduino-1.0.1/cores/arduino/WInterrupts.c
new file mode 100644
index 0000000000..8f3ec847f1
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/WInterrupts.c
@@ -0,0 +1,298 @@
+/* -*- mode: jde; c-basic-offset: 2; indent-tabs-mode: nil -*- */
+
+/*
+  Part of the Wiring project - http://wiring.uniandes.edu.co
+
+  Copyright (c) 2004-05 Hernando Barragan
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General
+  Public License along with this library; if not, write to the
+  Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+  Boston, MA  02111-1307  USA
+  
+  Modified 24 November 2006 by David A. Mellis
+  Modified 1 August 2010 by Mark Sproul
+*/
+
+#include <inttypes.h>
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <avr/pgmspace.h>
+#include <stdio.h>
+
+#include "wiring_private.h"
+
+static volatile voidFuncPtr intFunc[EXTERNAL_NUM_INTERRUPTS];
+// volatile static voidFuncPtr twiIntFunc;
+
+void attachInterrupt(uint8_t interruptNum, void (*userFunc)(void), int mode) {
+  if(interruptNum < EXTERNAL_NUM_INTERRUPTS) {
+    intFunc[interruptNum] = userFunc;
+    
+    // Configure the interrupt mode (trigger on low input, any change, rising
+    // edge, or falling edge).  The mode constants were chosen to correspond
+    // to the configuration bits in the hardware register, so we simply shift
+    // the mode into place.
+      
+    // Enable the interrupt.
+      
+    switch (interruptNum) {
+#if defined(__AVR_ATmega32U4__)
+	// I hate doing this, but the register assignment differs between the 1280/2560
+	// and the 32U4.  Since avrlib defines registers PCMSK1 and PCMSK2 that aren't 
+	// even present on the 32U4 this is the only way to distinguish between them.
+	case 0:
+		EICRA = (EICRA & ~((1<<ISC00) | (1<<ISC01))) | (mode << ISC00);
+		EIMSK |= (1<<INT0);
+		break;
+	case 1:
+		EICRA = (EICRA & ~((1<<ISC10) | (1<<ISC11))) | (mode << ISC10);
+		EIMSK |= (1<<INT1);
+		break;	
+#elif defined(EICRA) && defined(EICRB) && defined(EIMSK)
+    case 2:
+      EICRA = (EICRA & ~((1 << ISC00) | (1 << ISC01))) | (mode << ISC00);
+      EIMSK |= (1 << INT0);
+      break;
+    case 3:
+      EICRA = (EICRA & ~((1 << ISC10) | (1 << ISC11))) | (mode << ISC10);
+      EIMSK |= (1 << INT1);
+      break;
+    case 4:
+      EICRA = (EICRA & ~((1 << ISC20) | (1 << ISC21))) | (mode << ISC20);
+      EIMSK |= (1 << INT2);
+      break;
+    case 5:
+      EICRA = (EICRA & ~((1 << ISC30) | (1 << ISC31))) | (mode << ISC30);
+      EIMSK |= (1 << INT3);
+      break;
+    case 0:
+      EICRB = (EICRB & ~((1 << ISC40) | (1 << ISC41))) | (mode << ISC40);
+      EIMSK |= (1 << INT4);
+      break;
+    case 1:
+      EICRB = (EICRB & ~((1 << ISC50) | (1 << ISC51))) | (mode << ISC50);
+      EIMSK |= (1 << INT5);
+      break;
+    case 6:
+      EICRB = (EICRB & ~((1 << ISC60) | (1 << ISC61))) | (mode << ISC60);
+      EIMSK |= (1 << INT6);
+      break;
+    case 7:
+      EICRB = (EICRB & ~((1 << ISC70) | (1 << ISC71))) | (mode << ISC70);
+      EIMSK |= (1 << INT7);
+      break;
+#else		
+    case 0:
+    #if defined(EICRA) && defined(ISC00) && defined(EIMSK)
+      EICRA = (EICRA & ~((1 << ISC00) | (1 << ISC01))) | (mode << ISC00);
+      EIMSK |= (1 << INT0);
+    #elif defined(MCUCR) && defined(ISC00) && defined(GICR)
+      MCUCR = (MCUCR & ~((1 << ISC00) | (1 << ISC01))) | (mode << ISC00);
+      GICR |= (1 << INT0);
+    #elif defined(MCUCR) && defined(ISC00) && defined(GIMSK)
+      MCUCR = (MCUCR & ~((1 << ISC00) | (1 << ISC01))) | (mode << ISC00);
+      GIMSK |= (1 << INT0);
+    #else
+      #error attachInterrupt not finished for this CPU (case 0)
+    #endif
+      break;
+
+    case 1:
+    #if defined(EICRA) && defined(ISC10) && defined(ISC11) && defined(EIMSK)
+      EICRA = (EICRA & ~((1 << ISC10) | (1 << ISC11))) | (mode << ISC10);
+      EIMSK |= (1 << INT1);
+    #elif defined(MCUCR) && defined(ISC10) && defined(ISC11) && defined(GICR)
+      MCUCR = (MCUCR & ~((1 << ISC10) | (1 << ISC11))) | (mode << ISC10);
+      GICR |= (1 << INT1);
+    #elif defined(MCUCR) && defined(ISC10) && defined(GIMSK) && defined(GIMSK)
+      MCUCR = (MCUCR & ~((1 << ISC10) | (1 << ISC11))) | (mode << ISC10);
+      GIMSK |= (1 << INT1);
+    #else
+      #warning attachInterrupt may need some more work for this cpu (case 1)
+    #endif
+      break;
+    
+    case 2:
+    #if defined(EICRA) && defined(ISC20) && defined(ISC21) && defined(EIMSK)
+      EICRA = (EICRA & ~((1 << ISC20) | (1 << ISC21))) | (mode << ISC20);
+      EIMSK |= (1 << INT2);
+    #elif defined(MCUCR) && defined(ISC20) && defined(ISC21) && defined(GICR)
+      MCUCR = (MCUCR & ~((1 << ISC20) | (1 << ISC21))) | (mode << ISC20);
+      GICR |= (1 << INT2);
+    #elif defined(MCUCR) && defined(ISC20) && defined(GIMSK) && defined(GIMSK)
+      MCUCR = (MCUCR & ~((1 << ISC20) | (1 << ISC21))) | (mode << ISC20);
+      GIMSK |= (1 << INT2);
+    #endif
+      break;
+#endif
+    }
+  }
+}
+
+void detachInterrupt(uint8_t interruptNum) {
+  if(interruptNum < EXTERNAL_NUM_INTERRUPTS) {
+    // Disable the interrupt.  (We can't assume that interruptNum is equal
+    // to the number of the EIMSK bit to clear, as this isn't true on the 
+    // ATmega8.  There, INT0 is 6 and INT1 is 7.)
+    switch (interruptNum) {
+#if defined(__AVR_ATmega32U4__)
+	case 0:
+		EIMSK &= ~(1<<INT0);
+		break;
+	case 1:
+		EIMSK &= ~(1<<INT1);
+		break;		
+#elif defined(EICRA) && defined(EICRB) && defined(EIMSK)
+    case 2:
+      EIMSK &= ~(1 << INT0);
+      break;
+    case 3:
+      EIMSK &= ~(1 << INT1);
+      break;
+    case 4:
+      EIMSK &= ~(1 << INT2);
+      break;
+    case 5:
+      EIMSK &= ~(1 << INT3);
+      break;
+    case 0:
+      EIMSK &= ~(1 << INT4);
+      break;
+    case 1:
+      EIMSK &= ~(1 << INT5);
+      break;
+    case 6:
+      EIMSK &= ~(1 << INT6);
+      break;
+    case 7:
+      EIMSK &= ~(1 << INT7);
+      break;
+#else
+    case 0:
+    #if defined(EIMSK) && defined(INT0)
+      EIMSK &= ~(1 << INT0);
+    #elif defined(GICR) && defined(ISC00)
+      GICR &= ~(1 << INT0); // atmega32
+    #elif defined(GIMSK) && defined(INT0)
+      GIMSK &= ~(1 << INT0);
+    #else
+      #error detachInterrupt not finished for this cpu
+    #endif
+      break;
+
+    case 1:
+    #if defined(EIMSK) && defined(INT1)
+      EIMSK &= ~(1 << INT1);
+    #elif defined(GICR) && defined(INT1)
+      GICR &= ~(1 << INT1); // atmega32
+    #elif defined(GIMSK) && defined(INT1)
+      GIMSK &= ~(1 << INT1);
+    #else
+      #warning detachInterrupt may need some more work for this cpu (case 1)
+    #endif
+      break;
+#endif
+    }
+      
+    intFunc[interruptNum] = 0;
+  }
+}
+
+/*
+void attachInterruptTwi(void (*userFunc)(void) ) {
+  twiIntFunc = userFunc;
+}
+*/
+
+#if defined(__AVR_ATmega32U4__)
+SIGNAL(INT0_vect) {
+	if(intFunc[EXTERNAL_INT_0])
+		intFunc[EXTERNAL_INT_0]();
+}
+
+SIGNAL(INT1_vect) {
+	if(intFunc[EXTERNAL_INT_1])
+		intFunc[EXTERNAL_INT_1]();
+}
+
+#elif defined(EICRA) && defined(EICRB)
+
+SIGNAL(INT0_vect) {
+  if(intFunc[EXTERNAL_INT_2])
+    intFunc[EXTERNAL_INT_2]();
+}
+
+SIGNAL(INT1_vect) {
+  if(intFunc[EXTERNAL_INT_3])
+    intFunc[EXTERNAL_INT_3]();
+}
+
+SIGNAL(INT2_vect) {
+  if(intFunc[EXTERNAL_INT_4])
+    intFunc[EXTERNAL_INT_4]();
+}
+
+SIGNAL(INT3_vect) {
+  if(intFunc[EXTERNAL_INT_5])
+    intFunc[EXTERNAL_INT_5]();
+}
+
+SIGNAL(INT4_vect) {
+  if(intFunc[EXTERNAL_INT_0])
+    intFunc[EXTERNAL_INT_0]();
+}
+
+SIGNAL(INT5_vect) {
+  if(intFunc[EXTERNAL_INT_1])
+    intFunc[EXTERNAL_INT_1]();
+}
+
+SIGNAL(INT6_vect) {
+  if(intFunc[EXTERNAL_INT_6])
+    intFunc[EXTERNAL_INT_6]();
+}
+
+SIGNAL(INT7_vect) {
+  if(intFunc[EXTERNAL_INT_7])
+    intFunc[EXTERNAL_INT_7]();
+}
+
+#else
+
+SIGNAL(INT0_vect) {
+  if(intFunc[EXTERNAL_INT_0])
+    intFunc[EXTERNAL_INT_0]();
+}
+
+SIGNAL(INT1_vect) {
+  if(intFunc[EXTERNAL_INT_1])
+    intFunc[EXTERNAL_INT_1]();
+}
+
+#if defined(EICRA) && defined(ISC20)
+SIGNAL(INT2_vect) {
+  if(intFunc[EXTERNAL_INT_2])
+    intFunc[EXTERNAL_INT_2]();
+}
+#endif
+
+#endif
+
+/*
+SIGNAL(SIG_2WIRE_SERIAL) {
+  if(twiIntFunc)
+    twiIntFunc();
+}
+*/
+
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/WMath.cpp b/lib/usbhost/arduino-1.0.1/cores/arduino/WMath.cpp
new file mode 100644
index 0000000000..2120c4cc10
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/WMath.cpp
@@ -0,0 +1,60 @@
+/* -*- mode: jde; c-basic-offset: 2; indent-tabs-mode: nil -*- */
+
+/*
+  Part of the Wiring project - http://wiring.org.co
+  Copyright (c) 2004-06 Hernando Barragan
+  Modified 13 August 2006, David A. Mellis for Arduino - http://www.arduino.cc/
+  
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General
+  Public License along with this library; if not, write to the
+  Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+  Boston, MA  02111-1307  USA
+  
+  $Id$
+*/
+
+extern "C" {
+  #include "stdlib.h"
+}
+
+void randomSeed(unsigned int seed)
+{
+  if (seed != 0) {
+    srandom(seed);
+  }
+}
+
+long random(long howbig)
+{
+  if (howbig == 0) {
+    return 0;
+  }
+  return random() % howbig;
+}
+
+long random(long howsmall, long howbig)
+{
+  if (howsmall >= howbig) {
+    return howsmall;
+  }
+  long diff = howbig - howsmall;
+  return random(diff) + howsmall;
+}
+
+long map(long x, long in_min, long in_max, long out_min, long out_max)
+{
+  return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
+}
+
+unsigned int makeWord(unsigned int w) { return w; }
+unsigned int makeWord(unsigned char h, unsigned char l) { return (h << 8) | l; }
\ No newline at end of file
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/WString.cpp b/lib/usbhost/arduino-1.0.1/cores/arduino/WString.cpp
new file mode 100644
index 0000000000..c6839fc0d9
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/WString.cpp
@@ -0,0 +1,645 @@
+/*
+  WString.cpp - String library for Wiring & Arduino
+  ...mostly rewritten by Paul Stoffregen...
+  Copyright (c) 2009-10 Hernando Barragan.  All rights reserved.
+  Copyright 2011, Paul Stoffregen, paul@pjrc.com
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include "WString.h"
+
+
+/*********************************************/
+/*  Constructors                             */
+/*********************************************/
+
+String::String(const char *cstr)
+{
+	init();
+	if (cstr) copy(cstr, strlen(cstr));
+}
+
+String::String(const String &value)
+{
+	init();
+	*this = value;
+}
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+String::String(String &&rval)
+{
+	init();
+	move(rval);
+}
+String::String(StringSumHelper &&rval)
+{
+	init();
+	move(rval);
+}
+#endif
+
+String::String(char c)
+{
+	init();
+	char buf[2];
+	buf[0] = c;
+	buf[1] = 0;
+	*this = buf;
+}
+
+String::String(unsigned char value, unsigned char base)
+{
+	init();
+	char buf[9];
+	utoa(value, buf, base);
+	*this = buf;
+}
+
+String::String(int value, unsigned char base)
+{
+	init();
+	char buf[18];
+	itoa(value, buf, base);
+	*this = buf;
+}
+
+String::String(unsigned int value, unsigned char base)
+{
+	init();
+	char buf[17];
+	utoa(value, buf, base);
+	*this = buf;
+}
+
+String::String(long value, unsigned char base)
+{
+	init();
+	char buf[34];
+	ltoa(value, buf, base);
+	*this = buf;
+}
+
+String::String(unsigned long value, unsigned char base)
+{
+	init();
+	char buf[33];
+	ultoa(value, buf, base);
+	*this = buf;
+}
+
+String::~String()
+{
+	free(buffer);
+}
+
+/*********************************************/
+/*  Memory Management                        */
+/*********************************************/
+
+inline void String::init(void)
+{
+	buffer = NULL;
+	capacity = 0;
+	len = 0;
+	flags = 0;
+}
+
+void String::invalidate(void)
+{
+	if (buffer) free(buffer);
+	buffer = NULL;
+	capacity = len = 0;
+}
+
+unsigned char String::reserve(unsigned int size)
+{
+	if (buffer && capacity >= size) return 1;
+	if (changeBuffer(size)) {
+		if (len == 0) buffer[0] = 0;
+		return 1;
+	}
+	return 0;
+}
+
+unsigned char String::changeBuffer(unsigned int maxStrLen)
+{
+	char *newbuffer = (char *)realloc(buffer, maxStrLen + 1);
+	if (newbuffer) {
+		buffer = newbuffer;
+		capacity = maxStrLen;
+		return 1;
+	}
+	return 0;
+}
+
+/*********************************************/
+/*  Copy and Move                            */
+/*********************************************/
+
+String & String::copy(const char *cstr, unsigned int length)
+{
+	if (!reserve(length)) {
+		invalidate();
+		return *this;
+	}
+	len = length;
+	strcpy(buffer, cstr);
+	return *this;
+}
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+void String::move(String &rhs)
+{
+	if (buffer) {
+		if (capacity >= rhs.len) {
+			strcpy(buffer, rhs.buffer);
+			len = rhs.len;
+			rhs.len = 0;
+			return;
+		} else {
+			free(buffer);
+		}
+	}
+	buffer = rhs.buffer;
+	capacity = rhs.capacity;
+	len = rhs.len;
+	rhs.buffer = NULL;
+	rhs.capacity = 0;
+	rhs.len = 0;
+}
+#endif
+
+String & String::operator = (const String &rhs)
+{
+	if (this == &rhs) return *this;
+	
+	if (rhs.buffer) copy(rhs.buffer, rhs.len);
+	else invalidate();
+	
+	return *this;
+}
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+String & String::operator = (String &&rval)
+{
+	if (this != &rval) move(rval);
+	return *this;
+}
+
+String & String::operator = (StringSumHelper &&rval)
+{
+	if (this != &rval) move(rval);
+	return *this;
+}
+#endif
+
+String & String::operator = (const char *cstr)
+{
+	if (cstr) copy(cstr, strlen(cstr));
+	else invalidate();
+	
+	return *this;
+}
+
+/*********************************************/
+/*  concat                                   */
+/*********************************************/
+
+unsigned char String::concat(const String &s)
+{
+	return concat(s.buffer, s.len);
+}
+
+unsigned char String::concat(const char *cstr, unsigned int length)
+{
+	unsigned int newlen = len + length;
+	if (!cstr) return 0;
+	if (length == 0) return 1;
+	if (!reserve(newlen)) return 0;
+	strcpy(buffer + len, cstr);
+	len = newlen;
+	return 1;
+}
+
+unsigned char String::concat(const char *cstr)
+{
+	if (!cstr) return 0;
+	return concat(cstr, strlen(cstr));
+}
+
+unsigned char String::concat(char c)
+{
+	char buf[2];
+	buf[0] = c;
+	buf[1] = 0;
+	return concat(buf, 1);
+}
+
+unsigned char String::concat(unsigned char num)
+{
+	char buf[4];
+	itoa(num, buf, 10);
+	return concat(buf, strlen(buf));
+}
+
+unsigned char String::concat(int num)
+{
+	char buf[7];
+	itoa(num, buf, 10);
+	return concat(buf, strlen(buf));
+}
+
+unsigned char String::concat(unsigned int num)
+{
+	char buf[6];
+	utoa(num, buf, 10);
+	return concat(buf, strlen(buf));
+}
+
+unsigned char String::concat(long num)
+{
+	char buf[12];
+	ltoa(num, buf, 10);
+	return concat(buf, strlen(buf));
+}
+
+unsigned char String::concat(unsigned long num)
+{
+	char buf[11];
+	ultoa(num, buf, 10);
+	return concat(buf, strlen(buf));
+}
+
+/*********************************************/
+/*  Concatenate                              */
+/*********************************************/
+
+StringSumHelper & operator + (const StringSumHelper &lhs, const String &rhs)
+{
+	StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
+	if (!a.concat(rhs.buffer, rhs.len)) a.invalidate();
+	return a;
+}
+
+StringSumHelper & operator + (const StringSumHelper &lhs, const char *cstr)
+{
+	StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
+	if (!cstr || !a.concat(cstr, strlen(cstr))) a.invalidate();
+	return a;
+}
+
+StringSumHelper & operator + (const StringSumHelper &lhs, char c)
+{
+	StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
+	if (!a.concat(c)) a.invalidate();
+	return a;
+}
+
+StringSumHelper & operator + (const StringSumHelper &lhs, unsigned char num)
+{
+	StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
+	if (!a.concat(num)) a.invalidate();
+	return a;
+}
+
+StringSumHelper & operator + (const StringSumHelper &lhs, int num)
+{
+	StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
+	if (!a.concat(num)) a.invalidate();
+	return a;
+}
+
+StringSumHelper & operator + (const StringSumHelper &lhs, unsigned int num)
+{
+	StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
+	if (!a.concat(num)) a.invalidate();
+	return a;
+}
+
+StringSumHelper & operator + (const StringSumHelper &lhs, long num)
+{
+	StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
+	if (!a.concat(num)) a.invalidate();
+	return a;
+}
+
+StringSumHelper & operator + (const StringSumHelper &lhs, unsigned long num)
+{
+	StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
+	if (!a.concat(num)) a.invalidate();
+	return a;
+}
+
+/*********************************************/
+/*  Comparison                               */
+/*********************************************/
+
+int String::compareTo(const String &s) const
+{
+	if (!buffer || !s.buffer) {
+		if (s.buffer && s.len > 0) return 0 - *(unsigned char *)s.buffer;
+		if (buffer && len > 0) return *(unsigned char *)buffer;
+		return 0;
+	}
+	return strcmp(buffer, s.buffer);
+}
+
+unsigned char String::equals(const String &s2) const
+{
+	return (len == s2.len && compareTo(s2) == 0);
+}
+
+unsigned char String::equals(const char *cstr) const
+{
+	if (len == 0) return (cstr == NULL || *cstr == 0);
+	if (cstr == NULL) return buffer[0] == 0;
+	return strcmp(buffer, cstr) == 0;
+}
+
+unsigned char String::operator<(const String &rhs) const
+{
+	return compareTo(rhs) < 0;
+}
+
+unsigned char String::operator>(const String &rhs) const
+{
+	return compareTo(rhs) > 0;
+}
+
+unsigned char String::operator<=(const String &rhs) const
+{
+	return compareTo(rhs) <= 0;
+}
+
+unsigned char String::operator>=(const String &rhs) const
+{
+	return compareTo(rhs) >= 0;
+}
+
+unsigned char String::equalsIgnoreCase( const String &s2 ) const
+{
+	if (this == &s2) return 1;
+	if (len != s2.len) return 0;
+	if (len == 0) return 1;
+	const char *p1 = buffer;
+	const char *p2 = s2.buffer;
+	while (*p1) {
+		if (tolower(*p1++) != tolower(*p2++)) return 0;
+	} 
+	return 1;
+}
+
+unsigned char String::startsWith( const String &s2 ) const
+{
+	if (len < s2.len) return 0;
+	return startsWith(s2, 0);
+}
+
+unsigned char String::startsWith( const String &s2, unsigned int offset ) const
+{
+	if (offset > len - s2.len || !buffer || !s2.buffer) return 0;
+	return strncmp( &buffer[offset], s2.buffer, s2.len ) == 0;
+}
+
+unsigned char String::endsWith( const String &s2 ) const
+{
+	if ( len < s2.len || !buffer || !s2.buffer) return 0;
+	return strcmp(&buffer[len - s2.len], s2.buffer) == 0;
+}
+
+/*********************************************/
+/*  Character Access                         */
+/*********************************************/
+
+char String::charAt(unsigned int loc) const
+{
+	return operator[](loc);
+}
+
+void String::setCharAt(unsigned int loc, char c) 
+{
+	if (loc < len) buffer[loc] = c;
+}
+
+char & String::operator[](unsigned int index)
+{
+	static char dummy_writable_char;
+	if (index >= len || !buffer) {
+		dummy_writable_char = 0;
+		return dummy_writable_char;
+	}
+	return buffer[index];
+}
+
+char String::operator[]( unsigned int index ) const
+{
+	if (index >= len || !buffer) return 0;
+	return buffer[index];
+}
+
+void String::getBytes(unsigned char *buf, unsigned int bufsize, unsigned int index) const
+{
+	if (!bufsize || !buf) return;
+	if (index >= len) {
+		buf[0] = 0;
+		return;
+	}
+	unsigned int n = bufsize - 1;
+	if (n > len - index) n = len - index;
+	strncpy((char *)buf, buffer + index, n);
+	buf[n] = 0;
+}
+
+/*********************************************/
+/*  Search                                   */
+/*********************************************/
+
+int String::indexOf(char c) const
+{
+	return indexOf(c, 0);
+}
+
+int String::indexOf( char ch, unsigned int fromIndex ) const
+{
+	if (fromIndex >= len) return -1;
+	const char* temp = strchr(buffer + fromIndex, ch);
+	if (temp == NULL) return -1;
+	return temp - buffer;
+}
+
+int String::indexOf(const String &s2) const
+{
+	return indexOf(s2, 0);
+}
+
+int String::indexOf(const String &s2, unsigned int fromIndex) const
+{
+	if (fromIndex >= len) return -1;
+	const char *found = strstr(buffer + fromIndex, s2.buffer);
+	if (found == NULL) return -1;
+	return found - buffer;
+}
+
+int String::lastIndexOf( char theChar ) const
+{
+	return lastIndexOf(theChar, len - 1);
+}
+
+int String::lastIndexOf(char ch, unsigned int fromIndex) const
+{
+	if (fromIndex >= len) return -1;
+	char tempchar = buffer[fromIndex + 1];
+	buffer[fromIndex + 1] = '\0';
+	char* temp = strrchr( buffer, ch );
+	buffer[fromIndex + 1] = tempchar;
+	if (temp == NULL) return -1;
+	return temp - buffer;
+}
+
+int String::lastIndexOf(const String &s2) const
+{
+	return lastIndexOf(s2, len - s2.len);
+}
+
+int String::lastIndexOf(const String &s2, unsigned int fromIndex) const
+{
+  	if (s2.len == 0 || len == 0 || s2.len > len) return -1;
+	if (fromIndex >= len) fromIndex = len - 1;
+	int found = -1;
+	for (char *p = buffer; p <= buffer + fromIndex; p++) {
+		p = strstr(p, s2.buffer);
+		if (!p) break;
+		if ((unsigned int)(p - buffer) <= fromIndex) found = p - buffer;
+	}
+	return found;
+}
+
+String String::substring( unsigned int left ) const
+{
+	return substring(left, len);
+}
+
+String String::substring(unsigned int left, unsigned int right) const
+{
+	if (left > right) {
+		unsigned int temp = right;
+		right = left;
+		left = temp;
+	}
+	String out;
+	if (left > len) return out;
+	if (right > len) right = len;
+	char temp = buffer[right];  // save the replaced character
+	buffer[right] = '\0';	
+	out = buffer + left;  // pointer arithmetic
+	buffer[right] = temp;  //restore character
+	return out;
+}
+
+/*********************************************/
+/*  Modification                             */
+/*********************************************/
+
+void String::replace(char find, char replace)
+{
+	if (!buffer) return;
+	for (char *p = buffer; *p; p++) {
+		if (*p == find) *p = replace;
+	}
+}
+
+void String::replace(const String& find, const String& replace)
+{
+	if (len == 0 || find.len == 0) return;
+	int diff = replace.len - find.len;
+	char *readFrom = buffer;
+	char *foundAt;
+	if (diff == 0) {
+		while ((foundAt = strstr(readFrom, find.buffer)) != NULL) {
+			memcpy(foundAt, replace.buffer, replace.len);
+			readFrom = foundAt + replace.len;
+		}
+	} else if (diff < 0) {
+		char *writeTo = buffer;
+		while ((foundAt = strstr(readFrom, find.buffer)) != NULL) {
+			unsigned int n = foundAt - readFrom;
+			memcpy(writeTo, readFrom, n);
+			writeTo += n;
+			memcpy(writeTo, replace.buffer, replace.len);
+			writeTo += replace.len;
+			readFrom = foundAt + find.len;
+			len += diff;
+		}
+		strcpy(writeTo, readFrom);
+	} else {
+		unsigned int size = len; // compute size needed for result
+		while ((foundAt = strstr(readFrom, find.buffer)) != NULL) {
+			readFrom = foundAt + find.len;
+			size += diff;
+		}
+		if (size == len) return;
+		if (size > capacity && !changeBuffer(size)) return; // XXX: tell user!
+		int index = len - 1;
+		while (index >= 0 && (index = lastIndexOf(find, index)) >= 0) {
+			readFrom = buffer + index + find.len;
+			memmove(readFrom + diff, readFrom, len - (readFrom - buffer));
+			len += diff;
+			buffer[len] = 0;
+			memcpy(buffer + index, replace.buffer, replace.len);
+			index--;
+		}
+	}
+}
+
+void String::toLowerCase(void)
+{
+	if (!buffer) return;
+	for (char *p = buffer; *p; p++) {
+		*p = tolower(*p);
+	}
+}
+
+void String::toUpperCase(void)
+{
+	if (!buffer) return;
+	for (char *p = buffer; *p; p++) {
+		*p = toupper(*p);
+	}
+}
+
+void String::trim(void)
+{
+	if (!buffer || len == 0) return;
+	char *begin = buffer;
+	while (isspace(*begin)) begin++;
+	char *end = buffer + len - 1;
+	while (isspace(*end) && end >= begin) end--;
+	len = end + 1 - begin;
+	if (begin > buffer) memcpy(buffer, begin, len);
+	buffer[len] = 0;
+}
+
+/*********************************************/
+/*  Parsing / Conversion                     */
+/*********************************************/
+
+long String::toInt(void) const
+{
+	if (buffer) return atol(buffer);
+	return 0;
+}
+
+
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/WString.h b/lib/usbhost/arduino-1.0.1/cores/arduino/WString.h
new file mode 100644
index 0000000000..947325e5f5
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/WString.h
@@ -0,0 +1,205 @@
+/*
+  WString.h - String library for Wiring & Arduino
+  ...mostly rewritten by Paul Stoffregen...
+  Copyright (c) 2009-10 Hernando Barragan.  All right reserved.
+  Copyright 2011, Paul Stoffregen, paul@pjrc.com
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef String_class_h
+#define String_class_h
+#ifdef __cplusplus
+
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <avr/pgmspace.h>
+
+// When compiling programs with this class, the following gcc parameters
+// dramatically increase performance and memory (RAM) efficiency, typically
+// with little or no increase in code size.
+//     -felide-constructors
+//     -std=c++0x
+
+class __FlashStringHelper;
+#define F(string_literal) (reinterpret_cast<const __FlashStringHelper *>(PSTR(string_literal)))
+
+// An inherited class for holding the result of a concatenation.  These
+// result objects are assumed to be writable by subsequent concatenations.
+class StringSumHelper;
+
+// The string class
+class String
+{
+	// use a function pointer to allow for "if (s)" without the
+	// complications of an operator bool(). for more information, see:
+	// http://www.artima.com/cppsource/safebool.html
+	typedef void (String::*StringIfHelperType)() const;
+	void StringIfHelper() const {}
+
+public:
+	// constructors
+	// creates a copy of the initial value.
+	// if the initial value is null or invalid, or if memory allocation
+	// fails, the string will be marked as invalid (i.e. "if (s)" will
+	// be false).
+	String(const char *cstr = "");
+	String(const String &str);
+	#ifdef __GXX_EXPERIMENTAL_CXX0X__
+	String(String &&rval);
+	String(StringSumHelper &&rval);
+	#endif
+	explicit String(char c);
+	explicit String(unsigned char, unsigned char base=10);
+	explicit String(int, unsigned char base=10);
+	explicit String(unsigned int, unsigned char base=10);
+	explicit String(long, unsigned char base=10);
+	explicit String(unsigned long, unsigned char base=10);
+	~String(void);
+
+	// memory management
+	// return true on success, false on failure (in which case, the string
+	// is left unchanged).  reserve(0), if successful, will validate an
+	// invalid string (i.e., "if (s)" will be true afterwards)
+	unsigned char reserve(unsigned int size);
+	inline unsigned int length(void) const {return len;}
+
+	// creates a copy of the assigned value.  if the value is null or
+	// invalid, or if the memory allocation fails, the string will be 
+	// marked as invalid ("if (s)" will be false).
+	String & operator = (const String &rhs);
+	String & operator = (const char *cstr);
+	#ifdef __GXX_EXPERIMENTAL_CXX0X__
+	String & operator = (String &&rval);
+	String & operator = (StringSumHelper &&rval);
+	#endif
+
+	// concatenate (works w/ built-in types)
+	
+	// returns true on success, false on failure (in which case, the string
+	// is left unchanged).  if the argument is null or invalid, the 
+	// concatenation is considered unsucessful.  
+	unsigned char concat(const String &str);
+	unsigned char concat(const char *cstr);
+	unsigned char concat(char c);
+	unsigned char concat(unsigned char c);
+	unsigned char concat(int num);
+	unsigned char concat(unsigned int num);
+	unsigned char concat(long num);
+	unsigned char concat(unsigned long num);
+	
+	// if there's not enough memory for the concatenated value, the string
+	// will be left unchanged (but this isn't signalled in any way)
+	String & operator += (const String &rhs)	{concat(rhs); return (*this);}
+	String & operator += (const char *cstr)		{concat(cstr); return (*this);}
+	String & operator += (char c)			{concat(c); return (*this);}
+	String & operator += (unsigned char num)		{concat(num); return (*this);}
+	String & operator += (int num)			{concat(num); return (*this);}
+	String & operator += (unsigned int num)		{concat(num); return (*this);}
+	String & operator += (long num)			{concat(num); return (*this);}
+	String & operator += (unsigned long num)	{concat(num); return (*this);}
+
+	friend StringSumHelper & operator + (const StringSumHelper &lhs, const String &rhs);
+	friend StringSumHelper & operator + (const StringSumHelper &lhs, const char *cstr);
+	friend StringSumHelper & operator + (const StringSumHelper &lhs, char c);
+	friend StringSumHelper & operator + (const StringSumHelper &lhs, unsigned char num);
+	friend StringSumHelper & operator + (const StringSumHelper &lhs, int num);
+	friend StringSumHelper & operator + (const StringSumHelper &lhs, unsigned int num);
+	friend StringSumHelper & operator + (const StringSumHelper &lhs, long num);
+	friend StringSumHelper & operator + (const StringSumHelper &lhs, unsigned long num);
+
+	// comparison (only works w/ Strings and "strings")
+	operator StringIfHelperType() const { return buffer ? &String::StringIfHelper : 0; }
+	int compareTo(const String &s) const;
+	unsigned char equals(const String &s) const;
+	unsigned char equals(const char *cstr) const;
+	unsigned char operator == (const String &rhs) const {return equals(rhs);}
+	unsigned char operator == (const char *cstr) const {return equals(cstr);}
+	unsigned char operator != (const String &rhs) const {return !equals(rhs);}
+	unsigned char operator != (const char *cstr) const {return !equals(cstr);}
+	unsigned char operator <  (const String &rhs) const;
+	unsigned char operator >  (const String &rhs) const;
+	unsigned char operator <= (const String &rhs) const;
+	unsigned char operator >= (const String &rhs) const;
+	unsigned char equalsIgnoreCase(const String &s) const;
+	unsigned char startsWith( const String &prefix) const;
+	unsigned char startsWith(const String &prefix, unsigned int offset) const;
+	unsigned char endsWith(const String &suffix) const;
+
+	// character acccess
+	char charAt(unsigned int index) const;
+	void setCharAt(unsigned int index, char c);
+	char operator [] (unsigned int index) const;
+	char& operator [] (unsigned int index);
+	void getBytes(unsigned char *buf, unsigned int bufsize, unsigned int index=0) const;
+	void toCharArray(char *buf, unsigned int bufsize, unsigned int index=0) const
+		{getBytes((unsigned char *)buf, bufsize, index);}
+
+	// search
+	int indexOf( char ch ) const;
+	int indexOf( char ch, unsigned int fromIndex ) const;
+	int indexOf( const String &str ) const;
+	int indexOf( const String &str, unsigned int fromIndex ) const;
+	int lastIndexOf( char ch ) const;
+	int lastIndexOf( char ch, unsigned int fromIndex ) const;
+	int lastIndexOf( const String &str ) const;
+	int lastIndexOf( const String &str, unsigned int fromIndex ) const;
+	String substring( unsigned int beginIndex ) const;
+	String substring( unsigned int beginIndex, unsigned int endIndex ) const;
+
+	// modification
+	void replace(char find, char replace);
+	void replace(const String& find, const String& replace);
+	void toLowerCase(void);
+	void toUpperCase(void);
+	void trim(void);
+
+	// parsing/conversion
+	long toInt(void) const;
+
+protected:
+	char *buffer;	        // the actual char array
+	unsigned int capacity;  // the array length minus one (for the '\0')
+	unsigned int len;       // the String length (not counting the '\0')
+	unsigned char flags;    // unused, for future features
+protected:
+	void init(void);
+	void invalidate(void);
+	unsigned char changeBuffer(unsigned int maxStrLen);
+	unsigned char concat(const char *cstr, unsigned int length);
+
+	// copy and move
+	String & copy(const char *cstr, unsigned int length);
+	#ifdef __GXX_EXPERIMENTAL_CXX0X__
+	void move(String &rhs);
+	#endif
+};
+
+class StringSumHelper : public String
+{
+public:
+	StringSumHelper(const String &s) : String(s) {}
+	StringSumHelper(const char *p) : String(p) {}
+	StringSumHelper(char c) : String(c) {}
+	StringSumHelper(unsigned char num) : String(num) {}
+	StringSumHelper(int num) : String(num) {}
+	StringSumHelper(unsigned int num) : String(num) {}
+	StringSumHelper(long num) : String(num) {}
+	StringSumHelper(unsigned long num) : String(num) {}
+};
+
+#endif  // __cplusplus
+#endif  // String_class_h
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/binary.h b/lib/usbhost/arduino-1.0.1/cores/arduino/binary.h
new file mode 100644
index 0000000000..af1498033a
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/binary.h
@@ -0,0 +1,515 @@
+#ifndef Binary_h
+#define Binary_h
+
+#define B0 0
+#define B00 0
+#define B000 0
+#define B0000 0
+#define B00000 0
+#define B000000 0
+#define B0000000 0
+#define B00000000 0
+#define B1 1
+#define B01 1
+#define B001 1
+#define B0001 1
+#define B00001 1
+#define B000001 1
+#define B0000001 1
+#define B00000001 1
+#define B10 2
+#define B010 2
+#define B0010 2
+#define B00010 2
+#define B000010 2
+#define B0000010 2
+#define B00000010 2
+#define B11 3
+#define B011 3
+#define B0011 3
+#define B00011 3
+#define B000011 3
+#define B0000011 3
+#define B00000011 3
+#define B100 4
+#define B0100 4
+#define B00100 4
+#define B000100 4
+#define B0000100 4
+#define B00000100 4
+#define B101 5
+#define B0101 5
+#define B00101 5
+#define B000101 5
+#define B0000101 5
+#define B00000101 5
+#define B110 6
+#define B0110 6
+#define B00110 6
+#define B000110 6
+#define B0000110 6
+#define B00000110 6
+#define B111 7
+#define B0111 7
+#define B00111 7
+#define B000111 7
+#define B0000111 7
+#define B00000111 7
+#define B1000 8
+#define B01000 8
+#define B001000 8
+#define B0001000 8
+#define B00001000 8
+#define B1001 9
+#define B01001 9
+#define B001001 9
+#define B0001001 9
+#define B00001001 9
+#define B1010 10
+#define B01010 10
+#define B001010 10
+#define B0001010 10
+#define B00001010 10
+#define B1011 11
+#define B01011 11
+#define B001011 11
+#define B0001011 11
+#define B00001011 11
+#define B1100 12
+#define B01100 12
+#define B001100 12
+#define B0001100 12
+#define B00001100 12
+#define B1101 13
+#define B01101 13
+#define B001101 13
+#define B0001101 13
+#define B00001101 13
+#define B1110 14
+#define B01110 14
+#define B001110 14
+#define B0001110 14
+#define B00001110 14
+#define B1111 15
+#define B01111 15
+#define B001111 15
+#define B0001111 15
+#define B00001111 15
+#define B10000 16
+#define B010000 16
+#define B0010000 16
+#define B00010000 16
+#define B10001 17
+#define B010001 17
+#define B0010001 17
+#define B00010001 17
+#define B10010 18
+#define B010010 18
+#define B0010010 18
+#define B00010010 18
+#define B10011 19
+#define B010011 19
+#define B0010011 19
+#define B00010011 19
+#define B10100 20
+#define B010100 20
+#define B0010100 20
+#define B00010100 20
+#define B10101 21
+#define B010101 21
+#define B0010101 21
+#define B00010101 21
+#define B10110 22
+#define B010110 22
+#define B0010110 22
+#define B00010110 22
+#define B10111 23
+#define B010111 23
+#define B0010111 23
+#define B00010111 23
+#define B11000 24
+#define B011000 24
+#define B0011000 24
+#define B00011000 24
+#define B11001 25
+#define B011001 25
+#define B0011001 25
+#define B00011001 25
+#define B11010 26
+#define B011010 26
+#define B0011010 26
+#define B00011010 26
+#define B11011 27
+#define B011011 27
+#define B0011011 27
+#define B00011011 27
+#define B11100 28
+#define B011100 28
+#define B0011100 28
+#define B00011100 28
+#define B11101 29
+#define B011101 29
+#define B0011101 29
+#define B00011101 29
+#define B11110 30
+#define B011110 30
+#define B0011110 30
+#define B00011110 30
+#define B11111 31
+#define B011111 31
+#define B0011111 31
+#define B00011111 31
+#define B100000 32
+#define B0100000 32
+#define B00100000 32
+#define B100001 33
+#define B0100001 33
+#define B00100001 33
+#define B100010 34
+#define B0100010 34
+#define B00100010 34
+#define B100011 35
+#define B0100011 35
+#define B00100011 35
+#define B100100 36
+#define B0100100 36
+#define B00100100 36
+#define B100101 37
+#define B0100101 37
+#define B00100101 37
+#define B100110 38
+#define B0100110 38
+#define B00100110 38
+#define B100111 39
+#define B0100111 39
+#define B00100111 39
+#define B101000 40
+#define B0101000 40
+#define B00101000 40
+#define B101001 41
+#define B0101001 41
+#define B00101001 41
+#define B101010 42
+#define B0101010 42
+#define B00101010 42
+#define B101011 43
+#define B0101011 43
+#define B00101011 43
+#define B101100 44
+#define B0101100 44
+#define B00101100 44
+#define B101101 45
+#define B0101101 45
+#define B00101101 45
+#define B101110 46
+#define B0101110 46
+#define B00101110 46
+#define B101111 47
+#define B0101111 47
+#define B00101111 47
+#define B110000 48
+#define B0110000 48
+#define B00110000 48
+#define B110001 49
+#define B0110001 49
+#define B00110001 49
+#define B110010 50
+#define B0110010 50
+#define B00110010 50
+#define B110011 51
+#define B0110011 51
+#define B00110011 51
+#define B110100 52
+#define B0110100 52
+#define B00110100 52
+#define B110101 53
+#define B0110101 53
+#define B00110101 53
+#define B110110 54
+#define B0110110 54
+#define B00110110 54
+#define B110111 55
+#define B0110111 55
+#define B00110111 55
+#define B111000 56
+#define B0111000 56
+#define B00111000 56
+#define B111001 57
+#define B0111001 57
+#define B00111001 57
+#define B111010 58
+#define B0111010 58
+#define B00111010 58
+#define B111011 59
+#define B0111011 59
+#define B00111011 59
+#define B111100 60
+#define B0111100 60
+#define B00111100 60
+#define B111101 61
+#define B0111101 61
+#define B00111101 61
+#define B111110 62
+#define B0111110 62
+#define B00111110 62
+#define B111111 63
+#define B0111111 63
+#define B00111111 63
+#define B1000000 64
+#define B01000000 64
+#define B1000001 65
+#define B01000001 65
+#define B1000010 66
+#define B01000010 66
+#define B1000011 67
+#define B01000011 67
+#define B1000100 68
+#define B01000100 68
+#define B1000101 69
+#define B01000101 69
+#define B1000110 70
+#define B01000110 70
+#define B1000111 71
+#define B01000111 71
+#define B1001000 72
+#define B01001000 72
+#define B1001001 73
+#define B01001001 73
+#define B1001010 74
+#define B01001010 74
+#define B1001011 75
+#define B01001011 75
+#define B1001100 76
+#define B01001100 76
+#define B1001101 77
+#define B01001101 77
+#define B1001110 78
+#define B01001110 78
+#define B1001111 79
+#define B01001111 79
+#define B1010000 80
+#define B01010000 80
+#define B1010001 81
+#define B01010001 81
+#define B1010010 82
+#define B01010010 82
+#define B1010011 83
+#define B01010011 83
+#define B1010100 84
+#define B01010100 84
+#define B1010101 85
+#define B01010101 85
+#define B1010110 86
+#define B01010110 86
+#define B1010111 87
+#define B01010111 87
+#define B1011000 88
+#define B01011000 88
+#define B1011001 89
+#define B01011001 89
+#define B1011010 90
+#define B01011010 90
+#define B1011011 91
+#define B01011011 91
+#define B1011100 92
+#define B01011100 92
+#define B1011101 93
+#define B01011101 93
+#define B1011110 94
+#define B01011110 94
+#define B1011111 95
+#define B01011111 95
+#define B1100000 96
+#define B01100000 96
+#define B1100001 97
+#define B01100001 97
+#define B1100010 98
+#define B01100010 98
+#define B1100011 99
+#define B01100011 99
+#define B1100100 100
+#define B01100100 100
+#define B1100101 101
+#define B01100101 101
+#define B1100110 102
+#define B01100110 102
+#define B1100111 103
+#define B01100111 103
+#define B1101000 104
+#define B01101000 104
+#define B1101001 105
+#define B01101001 105
+#define B1101010 106
+#define B01101010 106
+#define B1101011 107
+#define B01101011 107
+#define B1101100 108
+#define B01101100 108
+#define B1101101 109
+#define B01101101 109
+#define B1101110 110
+#define B01101110 110
+#define B1101111 111
+#define B01101111 111
+#define B1110000 112
+#define B01110000 112
+#define B1110001 113
+#define B01110001 113
+#define B1110010 114
+#define B01110010 114
+#define B1110011 115
+#define B01110011 115
+#define B1110100 116
+#define B01110100 116
+#define B1110101 117
+#define B01110101 117
+#define B1110110 118
+#define B01110110 118
+#define B1110111 119
+#define B01110111 119
+#define B1111000 120
+#define B01111000 120
+#define B1111001 121
+#define B01111001 121
+#define B1111010 122
+#define B01111010 122
+#define B1111011 123
+#define B01111011 123
+#define B1111100 124
+#define B01111100 124
+#define B1111101 125
+#define B01111101 125
+#define B1111110 126
+#define B01111110 126
+#define B1111111 127
+#define B01111111 127
+#define B10000000 128
+#define B10000001 129
+#define B10000010 130
+#define B10000011 131
+#define B10000100 132
+#define B10000101 133
+#define B10000110 134
+#define B10000111 135
+#define B10001000 136
+#define B10001001 137
+#define B10001010 138
+#define B10001011 139
+#define B10001100 140
+#define B10001101 141
+#define B10001110 142
+#define B10001111 143
+#define B10010000 144
+#define B10010001 145
+#define B10010010 146
+#define B10010011 147
+#define B10010100 148
+#define B10010101 149
+#define B10010110 150
+#define B10010111 151
+#define B10011000 152
+#define B10011001 153
+#define B10011010 154
+#define B10011011 155
+#define B10011100 156
+#define B10011101 157
+#define B10011110 158
+#define B10011111 159
+#define B10100000 160
+#define B10100001 161
+#define B10100010 162
+#define B10100011 163
+#define B10100100 164
+#define B10100101 165
+#define B10100110 166
+#define B10100111 167
+#define B10101000 168
+#define B10101001 169
+#define B10101010 170
+#define B10101011 171
+#define B10101100 172
+#define B10101101 173
+#define B10101110 174
+#define B10101111 175
+#define B10110000 176
+#define B10110001 177
+#define B10110010 178
+#define B10110011 179
+#define B10110100 180
+#define B10110101 181
+#define B10110110 182
+#define B10110111 183
+#define B10111000 184
+#define B10111001 185
+#define B10111010 186
+#define B10111011 187
+#define B10111100 188
+#define B10111101 189
+#define B10111110 190
+#define B10111111 191
+#define B11000000 192
+#define B11000001 193
+#define B11000010 194
+#define B11000011 195
+#define B11000100 196
+#define B11000101 197
+#define B11000110 198
+#define B11000111 199
+#define B11001000 200
+#define B11001001 201
+#define B11001010 202
+#define B11001011 203
+#define B11001100 204
+#define B11001101 205
+#define B11001110 206
+#define B11001111 207
+#define B11010000 208
+#define B11010001 209
+#define B11010010 210
+#define B11010011 211
+#define B11010100 212
+#define B11010101 213
+#define B11010110 214
+#define B11010111 215
+#define B11011000 216
+#define B11011001 217
+#define B11011010 218
+#define B11011011 219
+#define B11011100 220
+#define B11011101 221
+#define B11011110 222
+#define B11011111 223
+#define B11100000 224
+#define B11100001 225
+#define B11100010 226
+#define B11100011 227
+#define B11100100 228
+#define B11100101 229
+#define B11100110 230
+#define B11100111 231
+#define B11101000 232
+#define B11101001 233
+#define B11101010 234
+#define B11101011 235
+#define B11101100 236
+#define B11101101 237
+#define B11101110 238
+#define B11101111 239
+#define B11110000 240
+#define B11110001 241
+#define B11110010 242
+#define B11110011 243
+#define B11110100 244
+#define B11110101 245
+#define B11110110 246
+#define B11110111 247
+#define B11111000 248
+#define B11111001 249
+#define B11111010 250
+#define B11111011 251
+#define B11111100 252
+#define B11111101 253
+#define B11111110 254
+#define B11111111 255
+
+#endif
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/main.cpp b/lib/usbhost/arduino-1.0.1/cores/arduino/main.cpp
new file mode 100644
index 0000000000..3d4e079d2a
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/main.cpp
@@ -0,0 +1,20 @@
+#include <Arduino.h>
+
+int main(void)
+{
+	init();
+
+#if defined(USBCON)
+	USBDevice.attach();
+#endif
+	
+	setup();
+    
+	for (;;) {
+		loop();
+		if (serialEventRun) serialEventRun();
+	}
+        
+	return 0;
+}
+
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/new.cpp b/lib/usbhost/arduino-1.0.1/cores/arduino/new.cpp
new file mode 100644
index 0000000000..0f6d4220ef
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/new.cpp
@@ -0,0 +1,18 @@
+#include <new.h>
+
+void * operator new(size_t size)
+{
+  return malloc(size);
+}
+
+void operator delete(void * ptr)
+{
+  free(ptr);
+} 
+
+int __cxa_guard_acquire(__guard *g) {return !*(char *)(g);};
+void __cxa_guard_release (__guard *g) {*(char *)g = 1;};
+void __cxa_guard_abort (__guard *) {}; 
+
+void __cxa_pure_virtual(void) {};
+
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/new.h b/lib/usbhost/arduino-1.0.1/cores/arduino/new.h
new file mode 100644
index 0000000000..cd940ce8b2
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/new.h
@@ -0,0 +1,22 @@
+/* Header to define new/delete operators as they aren't provided by avr-gcc by default
+   Taken from http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=59453 
+ */
+
+#ifndef NEW_H
+#define NEW_H
+
+#include <stdlib.h>
+
+void * operator new(size_t size);
+void operator delete(void * ptr); 
+
+__extension__ typedef int __guard __attribute__((mode (__DI__)));
+
+extern "C" int __cxa_guard_acquire(__guard *);
+extern "C" void __cxa_guard_release (__guard *);
+extern "C" void __cxa_guard_abort (__guard *); 
+
+extern "C" void __cxa_pure_virtual(void);
+
+#endif
+
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/wiring.c b/lib/usbhost/arduino-1.0.1/cores/arduino/wiring.c
new file mode 100644
index 0000000000..ac8bb6f9b4
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/wiring.c
@@ -0,0 +1,324 @@
+/*
+  wiring.c - Partial implementation of the Wiring API for the ATmega8.
+  Part of Arduino - http://www.arduino.cc/
+
+  Copyright (c) 2005-2006 David A. Mellis
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General
+  Public License along with this library; if not, write to the
+  Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+  Boston, MA  02111-1307  USA
+
+  $Id$
+*/
+
+#include "wiring_private.h"
+
+// the prescaler is set so that timer0 ticks every 64 clock cycles, and the
+// the overflow handler is called every 256 ticks.
+#define MICROSECONDS_PER_TIMER0_OVERFLOW (clockCyclesToMicroseconds(64 * 256))
+
+// the whole number of milliseconds per timer0 overflow
+#define MILLIS_INC (MICROSECONDS_PER_TIMER0_OVERFLOW / 1000)
+
+// the fractional number of milliseconds per timer0 overflow. we shift right
+// by three to fit these numbers into a byte. (for the clock speeds we care
+// about - 8 and 16 MHz - this doesn't lose precision.)
+#define FRACT_INC ((MICROSECONDS_PER_TIMER0_OVERFLOW % 1000) >> 3)
+#define FRACT_MAX (1000 >> 3)
+
+volatile unsigned long timer0_overflow_count = 0;
+volatile unsigned long timer0_millis = 0;
+static unsigned char timer0_fract = 0;
+
+#if defined(__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__)
+SIGNAL(TIM0_OVF_vect)
+#else
+SIGNAL(TIMER0_OVF_vect)
+#endif
+{
+	// copy these to local variables so they can be stored in registers
+	// (volatile variables must be read from memory on every access)
+	unsigned long m = timer0_millis;
+	unsigned char f = timer0_fract;
+
+	m += MILLIS_INC;
+	f += FRACT_INC;
+	if (f >= FRACT_MAX) {
+		f -= FRACT_MAX;
+		m += 1;
+	}
+
+	timer0_fract = f;
+	timer0_millis = m;
+	timer0_overflow_count++;
+}
+
+unsigned long millis()
+{
+	unsigned long m;
+	uint8_t oldSREG = SREG;
+
+	// disable interrupts while we read timer0_millis or we might get an
+	// inconsistent value (e.g. in the middle of a write to timer0_millis)
+	cli();
+	m = timer0_millis;
+	SREG = oldSREG;
+
+	return m;
+}
+
+unsigned long micros() {
+	unsigned long m;
+	uint8_t oldSREG = SREG, t;
+	
+	cli();
+	m = timer0_overflow_count;
+#if defined(TCNT0)
+	t = TCNT0;
+#elif defined(TCNT0L)
+	t = TCNT0L;
+#else
+	#error TIMER 0 not defined
+#endif
+
+  
+#ifdef TIFR0
+	if ((TIFR0 & _BV(TOV0)) && (t < 255))
+		m++;
+#else
+	if ((TIFR & _BV(TOV0)) && (t < 255))
+		m++;
+#endif
+
+	SREG = oldSREG;
+	
+	return ((m << 8) + t) * (64 / clockCyclesPerMicrosecond());
+}
+
+void delay(unsigned long ms)
+{
+	uint16_t start = (uint16_t)micros();
+
+	while (ms > 0) {
+		if (((uint16_t)micros() - start) >= 1000) {
+			ms--;
+			start += 1000;
+		}
+	}
+}
+
+/* Delay for the given number of microseconds.  Assumes a 8 or 16 MHz clock. */
+void delayMicroseconds(unsigned int us)
+{
+	// calling avrlib's delay_us() function with low values (e.g. 1 or
+	// 2 microseconds) gives delays longer than desired.
+	//delay_us(us);
+#if F_CPU >= 20000000L
+	// for the 20 MHz clock on rare Arduino boards
+
+	// for a one-microsecond delay, simply wait 2 cycle and return. The overhead
+	// of the function call yields a delay of exactly a one microsecond.
+	__asm__ __volatile__ (
+		"nop" "\n\t"
+		"nop"); //just waiting 2 cycle
+	if (--us == 0)
+		return;
+
+	// the following loop takes a 1/5 of a microsecond (4 cycles)
+	// per iteration, so execute it five times for each microsecond of
+	// delay requested.
+	us = (us<<2) + us; // x5 us
+
+	// account for the time taken in the preceeding commands.
+	us -= 2;
+
+#elif F_CPU >= 16000000L
+	// for the 16 MHz clock on most Arduino boards
+
+	// for a one-microsecond delay, simply return.  the overhead
+	// of the function call yields a delay of approximately 1 1/8 us.
+	if (--us == 0)
+		return;
+
+	// the following loop takes a quarter of a microsecond (4 cycles)
+	// per iteration, so execute it four times for each microsecond of
+	// delay requested.
+	us <<= 2;
+
+	// account for the time taken in the preceeding commands.
+	us -= 2;
+#else
+	// for the 8 MHz internal clock on the ATmega168
+
+	// for a one- or two-microsecond delay, simply return.  the overhead of
+	// the function calls takes more than two microseconds.  can't just
+	// subtract two, since us is unsigned; we'd overflow.
+	if (--us == 0)
+		return;
+	if (--us == 0)
+		return;
+
+	// the following loop takes half of a microsecond (4 cycles)
+	// per iteration, so execute it twice for each microsecond of
+	// delay requested.
+	us <<= 1;
+    
+	// partially compensate for the time taken by the preceeding commands.
+	// we can't subtract any more than this or we'd overflow w/ small delays.
+	us--;
+#endif
+
+	// busy wait
+	__asm__ __volatile__ (
+		"1: sbiw %0,1" "\n\t" // 2 cycles
+		"brne 1b" : "=w" (us) : "0" (us) // 2 cycles
+	);
+}
+
+void init()
+{
+	// this needs to be called before setup() or some functions won't
+	// work there
+	sei();
+	
+	// on the ATmega168, timer 0 is also used for fast hardware pwm
+	// (using phase-correct PWM would mean that timer 0 overflowed half as often
+	// resulting in different millis() behavior on the ATmega8 and ATmega168)
+#if defined(TCCR0A) && defined(WGM01)
+	sbi(TCCR0A, WGM01);
+	sbi(TCCR0A, WGM00);
+#endif  
+
+	// set timer 0 prescale factor to 64
+#if defined(__AVR_ATmega128__)
+	// CPU specific: different values for the ATmega128
+	sbi(TCCR0, CS02);
+#elif defined(TCCR0) && defined(CS01) && defined(CS00)
+	// this combination is for the standard atmega8
+	sbi(TCCR0, CS01);
+	sbi(TCCR0, CS00);
+#elif defined(TCCR0B) && defined(CS01) && defined(CS00)
+	// this combination is for the standard 168/328/1280/2560
+	sbi(TCCR0B, CS01);
+	sbi(TCCR0B, CS00);
+#elif defined(TCCR0A) && defined(CS01) && defined(CS00)
+	// this combination is for the __AVR_ATmega645__ series
+	sbi(TCCR0A, CS01);
+	sbi(TCCR0A, CS00);
+#else
+	#error Timer 0 prescale factor 64 not set correctly
+#endif
+
+	// enable timer 0 overflow interrupt
+#if defined(TIMSK) && defined(TOIE0)
+	sbi(TIMSK, TOIE0);
+#elif defined(TIMSK0) && defined(TOIE0)
+	sbi(TIMSK0, TOIE0);
+#else
+	#error	Timer 0 overflow interrupt not set correctly
+#endif
+
+	// timers 1 and 2 are used for phase-correct hardware pwm
+	// this is better for motors as it ensures an even waveform
+	// note, however, that fast pwm mode can achieve a frequency of up
+	// 8 MHz (with a 16 MHz clock) at 50% duty cycle
+
+#if defined(TCCR1B) && defined(CS11) && defined(CS10)
+	TCCR1B = 0;
+
+	// set timer 1 prescale factor to 64
+	sbi(TCCR1B, CS11);
+#if F_CPU >= 8000000L
+	sbi(TCCR1B, CS10);
+#endif
+#elif defined(TCCR1) && defined(CS11) && defined(CS10)
+	sbi(TCCR1, CS11);
+#if F_CPU >= 8000000L
+	sbi(TCCR1, CS10);
+#endif
+#endif
+	// put timer 1 in 8-bit phase correct pwm mode
+#if defined(TCCR1A) && defined(WGM10)
+	sbi(TCCR1A, WGM10);
+#elif defined(TCCR1)
+	#warning this needs to be finished
+#endif
+
+	// set timer 2 prescale factor to 64
+#if defined(TCCR2) && defined(CS22)
+	sbi(TCCR2, CS22);
+#elif defined(TCCR2B) && defined(CS22)
+	sbi(TCCR2B, CS22);
+#else
+	#warning Timer 2 not finished (may not be present on this CPU)
+#endif
+
+	// configure timer 2 for phase correct pwm (8-bit)
+#if defined(TCCR2) && defined(WGM20)
+	sbi(TCCR2, WGM20);
+#elif defined(TCCR2A) && defined(WGM20)
+	sbi(TCCR2A, WGM20);
+#else
+	#warning Timer 2 not finished (may not be present on this CPU)
+#endif
+
+#if defined(TCCR3B) && defined(CS31) && defined(WGM30)
+	sbi(TCCR3B, CS31);		// set timer 3 prescale factor to 64
+	sbi(TCCR3B, CS30);
+	sbi(TCCR3A, WGM30);		// put timer 3 in 8-bit phase correct pwm mode
+#endif
+
+#if defined(TCCR4A) && defined(TCCR4B) && defined(TCCR4D) /* beginning of timer4 block for 32U4 and similar */
+	sbi(TCCR4B, CS42);		// set timer4 prescale factor to 64
+	sbi(TCCR4B, CS41);
+	sbi(TCCR4B, CS40);
+	sbi(TCCR4D, WGM40);		// put timer 4 in phase- and frequency-correct PWM mode	
+	sbi(TCCR4A, PWM4A);		// enable PWM mode for comparator OCR4A
+	sbi(TCCR4C, PWM4D);		// enable PWM mode for comparator OCR4D
+#else /* beginning of timer4 block for ATMEGA1280 and ATMEGA2560 */
+#if defined(TCCR4B) && defined(CS41) && defined(WGM40)
+	sbi(TCCR4B, CS41);		// set timer 4 prescale factor to 64
+	sbi(TCCR4B, CS40);
+	sbi(TCCR4A, WGM40);		// put timer 4 in 8-bit phase correct pwm mode
+#endif
+#endif /* end timer4 block for ATMEGA1280/2560 and similar */	
+
+#if defined(TCCR5B) && defined(CS51) && defined(WGM50)
+	sbi(TCCR5B, CS51);		// set timer 5 prescale factor to 64
+	sbi(TCCR5B, CS50);
+	sbi(TCCR5A, WGM50);		// put timer 5 in 8-bit phase correct pwm mode
+#endif
+
+#if defined(ADCSRA)
+	// set a2d prescale factor to 128
+	// 16 MHz / 128 = 125 KHz, inside the desired 50-200 KHz range.
+	// XXX: this will not work properly for other clock speeds, and
+	// this code should use F_CPU to determine the prescale factor.
+	sbi(ADCSRA, ADPS2);
+	sbi(ADCSRA, ADPS1);
+	sbi(ADCSRA, ADPS0);
+
+	// enable a2d conversions
+	sbi(ADCSRA, ADEN);
+#endif
+
+	// the bootloader connects pins 0 and 1 to the USART; disconnect them
+	// here so they can be used as normal digital i/o; they will be
+	// reconnected in Serial.begin()
+#if defined(UCSRB)
+	UCSRB = 0;
+#elif defined(UCSR0B)
+	UCSR0B = 0;
+#endif
+}
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/wiring_analog.c b/lib/usbhost/arduino-1.0.1/cores/arduino/wiring_analog.c
new file mode 100644
index 0000000000..0e9881f6ac
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/wiring_analog.c
@@ -0,0 +1,282 @@
+/*
+  wiring_analog.c - analog input and output
+  Part of Arduino - http://www.arduino.cc/
+
+  Copyright (c) 2005-2006 David A. Mellis
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General
+  Public License along with this library; if not, write to the
+  Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+  Boston, MA  02111-1307  USA
+
+  Modified 28 September 2010 by Mark Sproul
+
+  $Id: wiring.c 248 2007-02-03 15:36:30Z mellis $
+*/
+
+#include "wiring_private.h"
+#include "pins_arduino.h"
+
+uint8_t analog_reference = DEFAULT;
+
+void analogReference(uint8_t mode)
+{
+	// can't actually set the register here because the default setting
+	// will connect AVCC and the AREF pin, which would cause a short if
+	// there's something connected to AREF.
+	analog_reference = mode;
+}
+
+int analogRead(uint8_t pin)
+{
+	uint8_t low, high;
+
+#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+	if (pin >= 54) pin -= 54; // allow for channel or pin numbers
+#elif defined(__AVR_ATmega32U4__)
+	if (pin >= 18) pin -= 18; // allow for channel or pin numbers
+#elif defined(__AVR_ATmega1284__)
+	if (pin >= 24) pin -= 24; // allow for channel or pin numbers
+#else
+	if (pin >= 14) pin -= 14; // allow for channel or pin numbers
+#endif
+	
+#if defined(__AVR_ATmega32U4__)
+	pin = analogPinToChannel(pin);
+	ADCSRB = (ADCSRB & ~(1 << MUX5)) | (((pin >> 3) & 0x01) << MUX5);
+#elif defined(ADCSRB) && defined(MUX5)
+	// the MUX5 bit of ADCSRB selects whether we're reading from channels
+	// 0 to 7 (MUX5 low) or 8 to 15 (MUX5 high).
+	ADCSRB = (ADCSRB & ~(1 << MUX5)) | (((pin >> 3) & 0x01) << MUX5);
+#endif
+  
+	// set the analog reference (high two bits of ADMUX) and select the
+	// channel (low 4 bits).  this also sets ADLAR (left-adjust result)
+	// to 0 (the default).
+#if defined(ADMUX)
+	ADMUX = (analog_reference << 6) | (pin & 0x07);
+#endif
+
+	// without a delay, we seem to read from the wrong channel
+	//delay(1);
+
+#if defined(ADCSRA) && defined(ADCL)
+	// start the conversion
+	sbi(ADCSRA, ADSC);
+
+	// ADSC is cleared when the conversion finishes
+	while (bit_is_set(ADCSRA, ADSC));
+
+	// we have to read ADCL first; doing so locks both ADCL
+	// and ADCH until ADCH is read.  reading ADCL second would
+	// cause the results of each conversion to be discarded,
+	// as ADCL and ADCH would be locked when it completed.
+	low  = ADCL;
+	high = ADCH;
+#else
+	// we dont have an ADC, return 0
+	low  = 0;
+	high = 0;
+#endif
+
+	// combine the two bytes
+	return (high << 8) | low;
+}
+
+// Right now, PWM output only works on the pins with
+// hardware support.  These are defined in the appropriate
+// pins_*.c file.  For the rest of the pins, we default
+// to digital output.
+void analogWrite(uint8_t pin, int val)
+{
+	// We need to make sure the PWM output is enabled for those pins
+	// that support it, as we turn it off when digitally reading or
+	// writing with them.  Also, make sure the pin is in output mode
+	// for consistenty with Wiring, which doesn't require a pinMode
+	// call for the analog output pins.
+	pinMode(pin, OUTPUT);
+	if (val == 0)
+	{
+		digitalWrite(pin, LOW);
+	}
+	else if (val == 255)
+	{
+		digitalWrite(pin, HIGH);
+	}
+	else
+	{
+		switch(digitalPinToTimer(pin))
+		{
+			// XXX fix needed for atmega8
+			#if defined(TCCR0) && defined(COM00) && !defined(__AVR_ATmega8__)
+			case TIMER0A:
+				// connect pwm to pin on timer 0
+				sbi(TCCR0, COM00);
+				OCR0 = val; // set pwm duty
+				break;
+			#endif
+
+			#if defined(TCCR0A) && defined(COM0A1)
+			case TIMER0A:
+				// connect pwm to pin on timer 0, channel A
+				sbi(TCCR0A, COM0A1);
+				OCR0A = val; // set pwm duty
+				break;
+			#endif
+
+			#if defined(TCCR0A) && defined(COM0B1)
+			case TIMER0B:
+				// connect pwm to pin on timer 0, channel B
+				sbi(TCCR0A, COM0B1);
+				OCR0B = val; // set pwm duty
+				break;
+			#endif
+
+			#if defined(TCCR1A) && defined(COM1A1)
+			case TIMER1A:
+				// connect pwm to pin on timer 1, channel A
+				sbi(TCCR1A, COM1A1);
+				OCR1A = val; // set pwm duty
+				break;
+			#endif
+
+			#if defined(TCCR1A) && defined(COM1B1)
+			case TIMER1B:
+				// connect pwm to pin on timer 1, channel B
+				sbi(TCCR1A, COM1B1);
+				OCR1B = val; // set pwm duty
+				break;
+			#endif
+
+			#if defined(TCCR2) && defined(COM21)
+			case TIMER2:
+				// connect pwm to pin on timer 2
+				sbi(TCCR2, COM21);
+				OCR2 = val; // set pwm duty
+				break;
+			#endif
+
+			#if defined(TCCR2A) && defined(COM2A1)
+			case TIMER2A:
+				// connect pwm to pin on timer 2, channel A
+				sbi(TCCR2A, COM2A1);
+				OCR2A = val; // set pwm duty
+				break;
+			#endif
+
+			#if defined(TCCR2A) && defined(COM2B1)
+			case TIMER2B:
+				// connect pwm to pin on timer 2, channel B
+				sbi(TCCR2A, COM2B1);
+				OCR2B = val; // set pwm duty
+				break;
+			#endif
+
+			#if defined(TCCR3A) && defined(COM3A1)
+			case TIMER3A:
+				// connect pwm to pin on timer 3, channel A
+				sbi(TCCR3A, COM3A1);
+				OCR3A = val; // set pwm duty
+				break;
+			#endif
+
+			#if defined(TCCR3A) && defined(COM3B1)
+			case TIMER3B:
+				// connect pwm to pin on timer 3, channel B
+				sbi(TCCR3A, COM3B1);
+				OCR3B = val; // set pwm duty
+				break;
+			#endif
+
+			#if defined(TCCR3A) && defined(COM3C1)
+			case TIMER3C:
+				// connect pwm to pin on timer 3, channel C
+				sbi(TCCR3A, COM3C1);
+				OCR3C = val; // set pwm duty
+				break;
+			#endif
+
+			#if defined(TCCR4A)
+			case TIMER4A:
+				//connect pwm to pin on timer 4, channel A
+				sbi(TCCR4A, COM4A1);
+				#if defined(COM4A0)		// only used on 32U4
+				cbi(TCCR4A, COM4A0);
+				#endif
+				OCR4A = val;	// set pwm duty
+				break;
+			#endif
+			
+			#if defined(TCCR4A) && defined(COM4B1)
+			case TIMER4B:
+				// connect pwm to pin on timer 4, channel B
+				sbi(TCCR4A, COM4B1);
+				OCR4B = val; // set pwm duty
+				break;
+			#endif
+
+			#if defined(TCCR4A) && defined(COM4C1)
+			case TIMER4C:
+				// connect pwm to pin on timer 4, channel C
+				sbi(TCCR4A, COM4C1);
+				OCR4C = val; // set pwm duty
+				break;
+			#endif
+				
+			#if defined(TCCR4C) && defined(COM4D1)
+			case TIMER4D:				
+				// connect pwm to pin on timer 4, channel D
+				sbi(TCCR4C, COM4D1);
+				#if defined(COM4D0)		// only used on 32U4
+				cbi(TCCR4C, COM4D0);
+				#endif
+				OCR4D = val;	// set pwm duty
+				break;
+			#endif
+
+							
+			#if defined(TCCR5A) && defined(COM5A1)
+			case TIMER5A:
+				// connect pwm to pin on timer 5, channel A
+				sbi(TCCR5A, COM5A1);
+				OCR5A = val; // set pwm duty
+				break;
+			#endif
+
+			#if defined(TCCR5A) && defined(COM5B1)
+			case TIMER5B:
+				// connect pwm to pin on timer 5, channel B
+				sbi(TCCR5A, COM5B1);
+				OCR5B = val; // set pwm duty
+				break;
+			#endif
+
+			#if defined(TCCR5A) && defined(COM5C1)
+			case TIMER5C:
+				// connect pwm to pin on timer 5, channel C
+				sbi(TCCR5A, COM5C1);
+				OCR5C = val; // set pwm duty
+				break;
+			#endif
+
+			case NOT_ON_TIMER:
+			default:
+				if (val < 128) {
+					digitalWrite(pin, LOW);
+				} else {
+					digitalWrite(pin, HIGH);
+				}
+		}
+	}
+}
+
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/wiring_digital.c b/lib/usbhost/arduino-1.0.1/cores/arduino/wiring_digital.c
new file mode 100644
index 0000000000..be323b1dfe
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/wiring_digital.c
@@ -0,0 +1,178 @@
+/*
+  wiring_digital.c - digital input and output functions
+  Part of Arduino - http://www.arduino.cc/
+
+  Copyright (c) 2005-2006 David A. Mellis
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General
+  Public License along with this library; if not, write to the
+  Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+  Boston, MA  02111-1307  USA
+
+  Modified 28 September 2010 by Mark Sproul
+
+  $Id: wiring.c 248 2007-02-03 15:36:30Z mellis $
+*/
+
+#define ARDUINO_MAIN
+#include "wiring_private.h"
+#include "pins_arduino.h"
+
+void pinMode(uint8_t pin, uint8_t mode)
+{
+	uint8_t bit = digitalPinToBitMask(pin);
+	uint8_t port = digitalPinToPort(pin);
+	volatile uint8_t *reg, *out;
+
+	if (port == NOT_A_PIN) return;
+
+	// JWS: can I let the optimizer do this?
+	reg = portModeRegister(port);
+	out = portOutputRegister(port);
+
+	if (mode == INPUT) { 
+		uint8_t oldSREG = SREG;
+                cli();
+		*reg &= ~bit;
+		*out &= ~bit;
+		SREG = oldSREG;
+	} else if (mode == INPUT_PULLUP) {
+		uint8_t oldSREG = SREG;
+                cli();
+		*reg &= ~bit;
+		*out |= bit;
+		SREG = oldSREG;
+	} else {
+		uint8_t oldSREG = SREG;
+                cli();
+		*reg |= bit;
+		SREG = oldSREG;
+	}
+}
+
+// Forcing this inline keeps the callers from having to push their own stuff
+// on the stack. It is a good performance win and only takes 1 more byte per
+// user than calling. (It will take more bytes on the 168.)
+//
+// But shouldn't this be moved into pinMode? Seems silly to check and do on
+// each digitalread or write.
+//
+// Mark Sproul:
+// - Removed inline. Save 170 bytes on atmega1280
+// - changed to a switch statment; added 32 bytes but much easier to read and maintain.
+// - Added more #ifdefs, now compiles for atmega645
+//
+//static inline void turnOffPWM(uint8_t timer) __attribute__ ((always_inline));
+//static inline void turnOffPWM(uint8_t timer)
+static void turnOffPWM(uint8_t timer)
+{
+	switch (timer)
+	{
+		#if defined(TCCR1A) && defined(COM1A1)
+		case TIMER1A:   cbi(TCCR1A, COM1A1);    break;
+		#endif
+		#if defined(TCCR1A) && defined(COM1B1)
+		case TIMER1B:   cbi(TCCR1A, COM1B1);    break;
+		#endif
+		
+		#if defined(TCCR2) && defined(COM21)
+		case  TIMER2:   cbi(TCCR2, COM21);      break;
+		#endif
+		
+		#if defined(TCCR0A) && defined(COM0A1)
+		case  TIMER0A:  cbi(TCCR0A, COM0A1);    break;
+		#endif
+		
+		#if defined(TIMER0B) && defined(COM0B1)
+		case  TIMER0B:  cbi(TCCR0A, COM0B1);    break;
+		#endif
+		#if defined(TCCR2A) && defined(COM2A1)
+		case  TIMER2A:  cbi(TCCR2A, COM2A1);    break;
+		#endif
+		#if defined(TCCR2A) && defined(COM2B1)
+		case  TIMER2B:  cbi(TCCR2A, COM2B1);    break;
+		#endif
+		
+		#if defined(TCCR3A) && defined(COM3A1)
+		case  TIMER3A:  cbi(TCCR3A, COM3A1);    break;
+		#endif
+		#if defined(TCCR3A) && defined(COM3B1)
+		case  TIMER3B:  cbi(TCCR3A, COM3B1);    break;
+		#endif
+		#if defined(TCCR3A) && defined(COM3C1)
+		case  TIMER3C:  cbi(TCCR3A, COM3C1);    break;
+		#endif
+
+		#if defined(TCCR4A) && defined(COM4A1)
+		case  TIMER4A:  cbi(TCCR4A, COM4A1);    break;
+		#endif					
+		#if defined(TCCR4A) && defined(COM4B1)
+		case  TIMER4B:  cbi(TCCR4A, COM4B1);    break;
+		#endif
+		#if defined(TCCR4A) && defined(COM4C1)
+		case  TIMER4C:  cbi(TCCR4A, COM4C1);    break;
+		#endif			
+		#if defined(TCCR4C) && defined(COM4D1)
+		case TIMER4D:	cbi(TCCR4C, COM4D1);	break;
+		#endif			
+			
+		#if defined(TCCR5A)
+		case  TIMER5A:  cbi(TCCR5A, COM5A1);    break;
+		case  TIMER5B:  cbi(TCCR5A, COM5B1);    break;
+		case  TIMER5C:  cbi(TCCR5A, COM5C1);    break;
+		#endif
+	}
+}
+
+void digitalWrite(uint8_t pin, uint8_t val)
+{
+	uint8_t timer = digitalPinToTimer(pin);
+	uint8_t bit = digitalPinToBitMask(pin);
+	uint8_t port = digitalPinToPort(pin);
+	volatile uint8_t *out;
+
+	if (port == NOT_A_PIN) return;
+
+	// If the pin that support PWM output, we need to turn it off
+	// before doing a digital write.
+	if (timer != NOT_ON_TIMER) turnOffPWM(timer);
+
+	out = portOutputRegister(port);
+
+	uint8_t oldSREG = SREG;
+	cli();
+
+	if (val == LOW) {
+		*out &= ~bit;
+	} else {
+		*out |= bit;
+	}
+
+	SREG = oldSREG;
+}
+
+int digitalRead(uint8_t pin)
+{
+	uint8_t timer = digitalPinToTimer(pin);
+	uint8_t bit = digitalPinToBitMask(pin);
+	uint8_t port = digitalPinToPort(pin);
+
+	if (port == NOT_A_PIN) return LOW;
+
+	// If the pin that support PWM output, we need to turn it off
+	// before getting a digital reading.
+	if (timer != NOT_ON_TIMER) turnOffPWM(timer);
+
+	if (*portInputRegister(port) & bit) return HIGH;
+	return LOW;
+}
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/wiring_private.h b/lib/usbhost/arduino-1.0.1/cores/arduino/wiring_private.h
new file mode 100644
index 0000000000..f0ceb0cc4d
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/wiring_private.h
@@ -0,0 +1,69 @@
+/*
+  wiring_private.h - Internal header file.
+  Part of Arduino - http://www.arduino.cc/
+
+  Copyright (c) 2005-2006 David A. Mellis
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General
+  Public License along with this library; if not, write to the
+  Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+  Boston, MA  02111-1307  USA
+
+  $Id: wiring.h 239 2007-01-12 17:58:39Z mellis $
+*/
+
+#ifndef WiringPrivate_h
+#define WiringPrivate_h
+
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <stdio.h>
+#include <stdarg.h>
+
+#include "Arduino.h"
+
+#ifdef __cplusplus
+extern "C"{
+#endif
+
+#ifndef cbi
+#define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit))
+#endif
+#ifndef sbi
+#define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit))
+#endif
+
+#define EXTERNAL_INT_0 0
+#define EXTERNAL_INT_1 1
+#define EXTERNAL_INT_2 2
+#define EXTERNAL_INT_3 3
+#define EXTERNAL_INT_4 4
+#define EXTERNAL_INT_5 5
+#define EXTERNAL_INT_6 6
+#define EXTERNAL_INT_7 7
+
+#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+#define EXTERNAL_NUM_INTERRUPTS 8
+#elif defined(__AVR_ATmega1284P__) 
+#define EXTERNAL_NUM_INTERRUPTS 3
+#else
+#define EXTERNAL_NUM_INTERRUPTS 2
+#endif
+
+typedef void (*voidFuncPtr)(void);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/wiring_pulse.c b/lib/usbhost/arduino-1.0.1/cores/arduino/wiring_pulse.c
new file mode 100644
index 0000000000..0d968865d2
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/wiring_pulse.c
@@ -0,0 +1,69 @@
+/*
+  wiring_pulse.c - pulseIn() function
+  Part of Arduino - http://www.arduino.cc/
+
+  Copyright (c) 2005-2006 David A. Mellis
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General
+  Public License along with this library; if not, write to the
+  Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+  Boston, MA  02111-1307  USA
+
+  $Id: wiring.c 248 2007-02-03 15:36:30Z mellis $
+*/
+
+#include "wiring_private.h"
+#include "pins_arduino.h"
+
+/* Measures the length (in microseconds) of a pulse on the pin; state is HIGH
+ * or LOW, the type of pulse to measure.  Works on pulses from 2-3 microseconds
+ * to 3 minutes in length, but must be called at least a few dozen microseconds
+ * before the start of the pulse. */
+unsigned long pulseIn(uint8_t pin, uint8_t state, unsigned long timeout)
+{
+	// cache the port and bit of the pin in order to speed up the
+	// pulse width measuring loop and achieve finer resolution.  calling
+	// digitalRead() instead yields much coarser resolution.
+	uint8_t bit = digitalPinToBitMask(pin);
+	uint8_t port = digitalPinToPort(pin);
+	uint8_t stateMask = (state ? bit : 0);
+	unsigned long width = 0; // keep initialization out of time critical area
+	
+	// convert the timeout from microseconds to a number of times through
+	// the initial loop; it takes 16 clock cycles per iteration.
+	unsigned long numloops = 0;
+	unsigned long maxloops = microsecondsToClockCycles(timeout) / 16;
+	
+	// wait for any previous pulse to end
+	while ((*portInputRegister(port) & bit) == stateMask)
+		if (numloops++ == maxloops)
+			return 0;
+	
+	// wait for the pulse to start
+	while ((*portInputRegister(port) & bit) != stateMask)
+		if (numloops++ == maxloops)
+			return 0;
+	
+	// wait for the pulse to stop
+	while ((*portInputRegister(port) & bit) == stateMask) {
+		if (numloops++ == maxloops)
+			return 0;
+		width++;
+	}
+
+	// convert the reading to microseconds. The loop has been determined
+	// to be 20 clock cycles long and have about 16 clocks between the edge
+	// and the start of the loop. There will be some error introduced by
+	// the interrupt handlers.
+	return clockCyclesToMicroseconds(width * 21 + 16); 
+}
diff --git a/lib/usbhost/arduino-1.0.1/cores/arduino/wiring_shift.c b/lib/usbhost/arduino-1.0.1/cores/arduino/wiring_shift.c
new file mode 100644
index 0000000000..cfe786758c
--- /dev/null
+++ b/lib/usbhost/arduino-1.0.1/cores/arduino/wiring_shift.c
@@ -0,0 +1,55 @@
+/*
+  wiring_shift.c - shiftOut() function
+  Part of Arduino - http://www.arduino.cc/
+
+  Copyright (c) 2005-2006 David A. Mellis
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General
+  Public License along with this library; if not, write to the
+  Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+  Boston, MA  02111-1307  USA
+
+  $Id: wiring.c 248 2007-02-03 15:36:30Z mellis $
+*/
+
+#include "wiring_private.h"
+
+uint8_t shiftIn(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder) {
+	uint8_t value = 0;
+	uint8_t i;
+
+	for (i = 0; i < 8; ++i) {
+		digitalWrite(clockPin, HIGH);
+		if (bitOrder == LSBFIRST)
+			value |= digitalRead(dataPin) << i;
+		else
+			value |= digitalRead(dataPin) << (7 - i);
+		digitalWrite(clockPin, LOW);
+	}
+	return value;
+}
+
+void shiftOut(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder, uint8_t val)
+{
+	uint8_t i;
+
+	for (i = 0; i < 8; i++)  {
+		if (bitOrder == LSBFIRST)
+			digitalWrite(dataPin, !!(val & (1 << i)));
+		else	
+			digitalWrite(dataPin, !!(val & (1 << (7 - i))));
+			
+		digitalWrite(clockPin, HIGH);
+		digitalWrite(clockPin, LOW);		
+	}
+}