Added HID class bootloader, compatible with a modified version of the command line Teensy loader from PJRC.com.

15 years ago · cae0fa73d7
parent 5430e1973c
commit cae0fa73d7
16 changed files with 4520 additions and 6 deletions
--- a/Bootloaders/CDC/BootloaderCDC.c
+++ b/Bootloaders/CDC/BootloaderCDC.c
@ -127,6 +127,13 @@ void EVENT_USB_Device_ConfigurationChanged(void)
 */
 void EVENT_USB_Device_ControlRequest(void)
 {
+	/* Ignore any requests that aren't directed to the CDC interface */
+	if ((USB_ControlRequest.bmRequestType & (CONTROL_REQTYPE_TYPE | CONTROL_REQTYPE_RECIPIENT)) !=
+	    (REQTYPE_CLASS | REQREC_INTERFACE))
+	{
+		return;
+	}
+
 	/* Process CDC specific control requests */
 	switch (USB_ControlRequest.bRequest)
 	{
--- a/Bootloaders/HID/BootloaderHID.c
+++ b/Bootloaders/HID/BootloaderHID.c
@ -0,0 +1,156 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2011.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2011  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this 
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in 
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting 
+  documentation, and that the name of the author not be used in 
+  advertising or publicity pertaining to distribution of the 
+  software without specific, written prior permission.
+
+  The author disclaim 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, 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.
+*/
+
+/** \file
+ *
+ *  Main source file for the HID class bootloader. This file contains the complete bootloader logic.
+ */
+ 
+#include "BootloaderHID.h"
+
+/** Flag to indicate if the bootloader should be running, or should exit and allow the application code to run
+ *  via a soft reset. When cleared, the bootloader will abort, the USB interface will shut down and the application
+ *  started via a forced watchdog reset.
+ */
+bool RunBootloader = true;
+
+/** Main program entry point. This routine configures the hardware required by the bootloader, then continuously 
+ *  runs the bootloader processing routine until instructed to soft-exit.
+ */
+int main(void)
+{
+	/* Setup hardware required for the bootloader */
+	SetupHardware();
+	
+	/* Enable global interrupts so that the USB stack can function */
+	sei();
+
+	while (RunBootloader)
+	  USB_USBTask();
+	
+	/* Disconnect from the host - USB interface will be reset later along with the AVR */
+	USB_Detach();
+
+	/* Enable the watchdog and force a timeout to reset the AVR */
+	wdt_enable(WDTO_250MS);
+
+	for (;;);
+}
+
+/** Configures all hardware required for the bootloader. */
+void SetupHardware(void)
+{
+	/* Disable watchdog if enabled by bootloader/fuses */
+	MCUSR &= ~(1 << WDRF);
+	wdt_disable();
+
+	/* Relocate the interrupt vector table to the bootloader section */
+	MCUCR = (1 << IVCE);
+	MCUCR = (1 << IVSEL);
+
+	/* Initialize USB subsystem */
+	USB_Init();
+}
+
+/** Event handler for the USB_ConfigurationChanged event. This configures the device's endpoints ready
+ *  to relay data to and from the attached USB host.
+ */
+void EVENT_USB_Device_ConfigurationChanged(void)
+{
+	/* Setup HID Report Endpoint */
+	Endpoint_ConfigureEndpoint(HID_IN_EPNUM, EP_TYPE_INTERRUPT,
+		                       ENDPOINT_DIR_IN, HID_IN_EPSIZE,
+	                           ENDPOINT_BANK_SINGLE);
+}
+
+/** Event handler for the USB_ControlRequest event. This is used to catch and process control requests sent to
+ *  the device from the USB host before passing along unhandled control requests to the library for processing
+ *  internally.
+ */
+void EVENT_USB_Device_ControlRequest(void)
+{
+	/* Ignore any requests that aren't directed to the HID interface */
+	if ((USB_ControlRequest.bmRequestType & (CONTROL_REQTYPE_TYPE | CONTROL_REQTYPE_RECIPIENT)) !=
+	    (REQTYPE_CLASS | REQREC_INTERFACE))
+	{
+		return;
+	}
+
+	/* Process HID specific control requests */
+	switch (USB_ControlRequest.bRequest)
+	{
+		case HID_REQ_SetReport:
+			Endpoint_ClearSETUP();
+			
+			/* Wait until the command has been sent by the host */
+			while (!(Endpoint_IsOUTReceived()));
+		
+			/* Read in the write destination address */
+			uint16_t PageAddress = Endpoint_Read_Word_LE();
+			
+			/* Check if the command is a program page command, or a start application command */
+			if (PageAddress == COMMAND_STARTAPPLICATION)
+			{
+				RunBootloader = false;
+			}
+			else
+			{
+				/* Erase the given FLASH page, ready to be programmed */
+				boot_page_erase(PageAddress);
+				boot_spm_busy_wait();
+				
+				/* Write each of the FLASH page's bytes in sequence */
+				for (uint16_t PageByte = 0; PageByte < SPM_PAGESIZE; PageByte += 2)				
+				{
+					/* Check if endpoint is empty - if so clear it and wait until ready for next packet */
+					if (!(Endpoint_BytesInEndpoint()))
+					{
+						Endpoint_ClearOUT();
+						while (!(Endpoint_IsOUTReceived()));
+					}
+
+					/* Write the next data word to the FLASH page */
+					boot_page_fill(PageAddress + PageByte, Endpoint_Read_Word_LE());
+				}
+
+				/* Write the filled FLASH page to memory */
+				boot_page_write(PageAddress);
+				boot_spm_busy_wait();
+
+				/* Re-enable RWW section */
+				boot_rww_enable();
+			}
+
+			Endpoint_ClearOUT();
+
+			Endpoint_ClearStatusStage();
+			break;
+	}
+}
--- a/Bootloaders/HID/BootloaderHID.h
+++ b/Bootloaders/HID/BootloaderHID.h
@ -0,0 +1,61 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2011.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2011  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+	  
+  Permission to use, copy, modify, distribute, and sell this 
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in 
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting 
+  documentation, and that the name of the author not be used in 
+  advertising or publicity pertaining to distribution of the 
+  software without specific, written prior permission.
+
+  The author disclaim 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, 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.
+*/
+
+/** \file
+ *
+ *  Header file for TeensyHID.c.
+ */
+ 
+#ifndef _TEENSYHID_H_
+#define _TEENSYHID_H_
+
+	/* Includes: */
+		#include <avr/io.h>
+		#include <avr/wdt.h>
+		#include <avr/boot.h>
+		#include <avr/power.h>
+		#include <avr/interrupt.h>
+		#include <stdbool.h>
+
+		#include "Descriptors.h"
+
+		#include <LUFA/Drivers/USB/USB.h>
+		
+	/* Macros: */		
+		/** Bootloader special address to start the user application */
+		#define COMMAND_STARTAPPLICATION   0xFFFF
+		
+	/* Function Prototypes: */
+		void SetupHardware(void);
+
+		void EVENT_USB_Device_ConfigurationChanged(void);
+		void EVENT_USB_Device_UnhandledControlRequest(void);
+		
+#endif
--- a/Bootloaders/HID/BootloaderHID.txt
+++ b/Bootloaders/HID/BootloaderHID.txt
@ -0,0 +1,69 @@
+/** \file
+ *
+ *  This file contains special DoxyGen information for the generation of the main page and other special
+ *  documentation pages. It is not a project source file.
+ */
+ 
+/** \mainpage HID Class USB AVR Bootloader
+ *
+ *  \section SSec_Compat Demo Compatibility:
+ *
+ *  The following list indicates what microcontrollers are compatible with this demo.
+ *
+ *  - Series 7 USB AVRs (AT90USBxxx7)
+ *  - Series 6 USB AVRs (AT90USBxxx6)
+ *  - Series 4 USB AVRs (ATMEGAxxU4)
+ *  - Series 2 USB AVRs (AT90USBxx2, ATMEGAxxU2)
+ *
+ *  \section SSec_Info USB Information:
+ *
+ *  The following table gives a rundown of the USB utilization of this demo.
+ *
+ * <table>
+ *  <tr>
+ *   <td><b>USB Mode:</b></td>
+ *   <td>Device</td>
+ *  </tr>
+ *  <tr>
+ *   <td><b>USB Class:</b></td>
+ *   <td>Human Interface Device Class (HID)</td>
+ *  </tr>
+ *  <tr> 
+ *   <td><b>USB Subclass:</b></td>
+ *   <td>N/A</td>
+ *  </tr>
+ *  <tr>
+ *   <td><b>Relevant Standards:</b></td>
+ *   <td>USBIF HID Class Standard \n
+ *       Teensy Programming Protocol Specification</td>
+ *  </tr>
+ *  <tr>
+ *   <td><b>Usable Speeds:</b></td>
+ *   <td>Low Speed Mode \n
+ *       Full Speed Mode</td>
+ *  </tr>
+ * </table>
+ *
+ *  \section SSec_Description Project Description: 
+ *
+ *  This bootloader enumerates to the host as a HID Class device, allowing for device FLASH programming through
+ *  the supplied command line software, which is a modified version of Paul's TeensyHID Command Line loader code
+ *  from PJRC, used with permission. This bootloader is delibertely non-compatible with the properietary HalfKay
+ *  bootloader GUI; only the command line interface software accompanying this bootloader will work with it.
+ *  
+ *  Out of the box this bootloader builds for the USB1287, and will fit into 4KB of bootloader space. If
+ *  you wish to enlarge this space and/or change the AVR model, you will need to edit the BOOT_START and MCU
+ *  values in the accompanying makefile.
+ *
+ *  \section SSec_Options Project Options
+ *
+ *  The following defines can be found in this demo, which can control the demo behaviour when defined, or changed in value.
+ *
+ *  <table>
+ *   <tr>
+ *    <td>
+ *     None
+ *    </td>
+ *   </tr>
+ *  </table>
+ */
--- a/Bootloaders/HID/Descriptors.c
+++ b/Bootloaders/HID/Descriptors.c
@ -0,0 +1,186 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2011.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2011  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+	  
+  Permission to use, copy, modify, distribute, and sell this 
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in 
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting 
+  documentation, and that the name of the author not be used in 
+  advertising or publicity pertaining to distribution of the 
+  software without specific, written prior permission.
+
+  The author disclaim 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, 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.
+*/
+
+/** \file
+ *
+ *  USB Device Descriptors, for library use when in USB device mode. Descriptors are special 
+ *  computer-readable structures which the host requests upon device enumeration, to determine
+ *  the device's capabilities and functions.  
+ */
+
+#include "Descriptors.h"
+
+/** HID class report descriptor. This is a special descriptor constructed with values from the
+ *  USBIF HID class specification to describe the reports and capabilities of the HID device. This
+ *  descriptor is parsed by the host and its contents used to determine what data (and in what encoding)
+ *  the device will send, and what it may be sent back from the host. Refer to the HID specification for
+ *  more details on HID report descriptors.
+ */
+USB_Descriptor_HIDReport_Datatype_t HIDReport[] =
+{
+	HID_RI_USAGE_PAGE(16, 0xFF00), /* Vendor Page 1 */
+	HID_RI_USAGE(8, 0x01), /* Vendor Usage 1 */
+	HID_RI_COLLECTION(8, 0x01), /* Vendor Usage 1 */
+	    HID_RI_USAGE(8, 0x03), /* Vendor Usage 3 */
+	    HID_RI_LOGICAL_MINIMUM(8, 0x00),
+	    HID_RI_LOGICAL_MAXIMUM(8, 0xFF),
+	    HID_RI_REPORT_SIZE(8, 0x08),
+	    HID_RI_REPORT_COUNT(16, (sizeof(uint16_t) + SPM_PAGESIZE)),		
+	    HID_RI_OUTPUT(8, HID_IOF_DATA | HID_IOF_VARIABLE | HID_IOF_ABSOLUTE | HID_IOF_NON_VOLATILE),
+	HID_RI_END_COLLECTION(0),
+};
+
+/** Device descriptor structure. This descriptor, located in FLASH memory, describes the overall
+ *  device characteristics, including the supported USB version, control endpoint size and the
+ *  number of device configurations. The descriptor is read out by the USB host when the enumeration
+ *  process begins.
+ */
+USB_Descriptor_Device_t DeviceDescriptor =
+{
+	.Header                 = {.Size = sizeof(USB_Descriptor_Device_t), .Type = DTYPE_Device},
+
+	.USBSpecification       = VERSION_BCD(01.10),
+	.Class                  = USB_CSCP_NoDeviceClass,
+	.SubClass               = USB_CSCP_NoDeviceSubclass,
+	.Protocol               = USB_CSCP_NoDeviceProtocol,
+
+	.Endpoint0Size          = FIXED_CONTROL_ENDPOINT_SIZE,
+
+	.VendorID               = 0x03EB,
+	.ProductID              = 0x2067,
+	.ReleaseNumber          = VERSION_BCD(00.01),
+
+	.ManufacturerStrIndex   = NO_DESCRIPTOR,
+	.ProductStrIndex        = NO_DESCRIPTOR,
+	.SerialNumStrIndex      = NO_DESCRIPTOR,
+
+	.NumberOfConfigurations = FIXED_NUM_CONFIGURATIONS
+};
+
+/** Configuration descriptor structure. This descriptor, located in FLASH memory, describes the usage
+ *  of the device in one of its supported configurations, including information about any device interfaces
+ *  and endpoints. The descriptor is read out by the USB host during the enumeration process when selecting
+ *  a configuration so that the host may correctly communicate with the USB device.
+ */
+USB_Descriptor_Configuration_t ConfigurationDescriptor =
+{
+	.Config = 
+		{
+			.Header                 = {.Size = sizeof(USB_Descriptor_Configuration_Header_t), .Type = DTYPE_Configuration},
+
+			.TotalConfigurationSize = sizeof(USB_Descriptor_Configuration_t),
+			.TotalInterfaces        = 1,
+				
+			.ConfigurationNumber    = 1,
+			.ConfigurationStrIndex  = NO_DESCRIPTOR,
+				
+			.ConfigAttributes       = USB_CONFIG_ATTR_BUSPOWERED,
+			
+			.MaxPowerConsumption    = USB_CONFIG_POWER_MA(100)
+		},
+		
+	.HID_Interface = 
+		{
+			.Header                 = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
+
+			.InterfaceNumber        = 0x00,
+			.AlternateSetting       = 0x00,
+			
+			.TotalEndpoints         = 1,
+				
+			.Class                  = HID_CSCP_HIDClass,
+			.SubClass               = HID_CSCP_NonBootSubclass,
+			.Protocol               = HID_CSCP_NonBootProtocol,
+				
+			.InterfaceStrIndex      = NO_DESCRIPTOR
+		},
+
+	.HID_VendorHID = 
+		{  
+			.Header                 = {.Size = sizeof(USB_HID_Descriptor_HID_t), .Type = HID_DTYPE_HID},
+			
+			.HIDSpec                = VERSION_BCD(01.11),
+			.CountryCode            = 0x00,
+			.TotalReportDescriptors = 1,
+			.HIDReportType          = HID_DTYPE_Report,
+			.HIDReportLength        = sizeof(HIDReport)
+		},
+		
+	.HID_ReportINEndpoint = 
+		{
+			.Header                 = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
+
+			.EndpointAddress        = (ENDPOINT_DESCRIPTOR_DIR_IN | HID_IN_EPNUM),
+			.Attributes             = (EP_TYPE_INTERRUPT | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
+			.EndpointSize           = HID_IN_EPSIZE,
+			.PollingIntervalMS      = 0x01
+		},
+};
+
+/** This function is called by the library when in device mode, and must be overridden (see library "USB Descriptors"
+ *  documentation) by the application code so that the address and size of a requested descriptor can be given
+ *  to the USB library. When the device receives a Get Descriptor request on the control endpoint, this function
+ *  is called so that the descriptor details can be passed back and the appropriate descriptor sent back to the
+ *  USB host.
+ */
+uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
+                                    const uint8_t wIndex,
+                                    const void** const DescriptorAddress)
+{
+	const uint8_t DescriptorType   = (wValue >> 8);
+
+	const void* Address = NULL;
+	uint16_t    Size    = NO_DESCRIPTOR;
+	
+	/* If/Else If chain compiles slightly smaller than a switch case */
+	if (DescriptorType == DTYPE_Device)
+	{
+		Address = &DeviceDescriptor;
+		Size    = sizeof(USB_Descriptor_Device_t);	
+	}
+	else if (DescriptorType == DTYPE_Configuration)
+	{
+		Address = &ConfigurationDescriptor;
+		Size    = sizeof(USB_Descriptor_Configuration_t);	
+	}
+	else if (DescriptorType == HID_DTYPE_HID)
+	{
+		Address = &ConfigurationDescriptor.HID_VendorHID;
+		Size    = sizeof(USB_HID_Descriptor_HID_t);
+	}
+	else
+	{
+		Address = &HIDReport;
+		Size    = sizeof(HIDReport);
+	}
+
+	*DescriptorAddress = Address;
+	return Size;
+}
--- a/Bootloaders/HID/Descriptors.h
+++ b/Bootloaders/HID/Descriptors.h
@ -0,0 +1,68 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2011.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2011  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+	  
+  Permission to use, copy, modify, distribute, and sell this 
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in 
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting 
+  documentation, and that the name of the author not be used in 
+  advertising or publicity pertaining to distribution of the 
+  software without specific, written prior permission.
+
+  The author disclaim 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, 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.
+*/
+
+/** \file
+ *
+ *  Header file for Descriptors.c.
+ */
+
+#ifndef _DESCRIPTORS_H_
+#define _DESCRIPTORS_H_
+
+	/* Includes: */
+		#include <LUFA/Drivers/USB/USB.h>
+
+	/* Type Defines: */
+		/** Type define for the device configuration descriptor structure. This must be defined in the
+		 *  application code, as the configuration descriptor contains several sub-descriptors which
+		 *  vary between devices, and which describe the device's usage to the host.
+		 */
+		typedef struct
+		{
+			USB_Descriptor_Configuration_Header_t Config;
+			USB_Descriptor_Interface_t            HID_Interface;
+			USB_HID_Descriptor_HID_t              HID_VendorHID;
+	        USB_Descriptor_Endpoint_t             HID_ReportINEndpoint;
+		} USB_Descriptor_Configuration_t;
+					
+	/* Macros: */
+		/** Endpoint number of the HID data IN endpoint. */
+		#define HID_IN_EPNUM                 1
+
+		/** Size in bytes of the HID reporting IN endpoint. */		
+		#define HID_IN_EPSIZE                64
+
+	/* Function Prototypes: */
+		uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
+		                                    const uint8_t wIndex,
+		                                    const void** const DescriptorAddress)
+		                                    ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(3);
+
+#endif
--- a/Bootloaders/HID/Doxygen.conf
+++ b/Bootloaders/HID/Doxygen.conf
--- a/Bootloaders/HID/HostLoaderApp/Makefile
+++ b/Bootloaders/HID/HostLoaderApp/Makefile
@ -0,0 +1,39 @@
+OS ?= LINUX
+#OS ?= WINDOWS
+#OS ?= MACOSX
+#OS ?= BSD
+
+ifeq ($(OS), LINUX)  # also works on FreeBSD
+CC ?= gcc
+CFLAGS ?= -O2 -Wall
+teensy_loader_cli: teensy_loader_cli.c
+	$(CC) $(CFLAGS) -s -DUSE_LIBUSB -o teensy_loader_cli teensy_loader_cli.c -lusb
+
+
+else ifeq ($(OS), WINDOWS)
+CC = i586-mingw32msvc-gcc
+CFLAGS ?= -O2 -Wall
+teensy_loader_cli.exe: teensy_loader_cli.c
+	$(CC) $(CFLAGS) -s -DUSE_WIN32 -o teensy_loader_cli.exe teensy_loader_cli.c -lhid -lsetupapi
+
+
+else ifeq ($(OS), MACOSX)
+CC ?= gcc
+SDK ?= /Developer/SDKs/MacOSX10.5.sdk
+CFLAGS ?= -O2 -Wall
+teensy_loader_cli: teensy_loader_cli.c
+	$(CC) $(CFLAGS) -DUSE_APPLE_IOKIT -isysroot $(SDK) -o teensy_loader_cli teensy_loader_cli.c -Wl,-syslibroot,$(SDK) -framework IOKit -framework CoreFoundation
+
+
+else ifeq ($(OS), BSD)  # works on NetBSD and OpenBSD
+CC ?= gcc
+CFLAGS ?= -O2 -Wall
+teensy_loader_cli: teensy_loader_cli.c
+	$(CC) $(CFLAGS) -s -DUSE_UHID -o teensy_loader_cli teensy_loader_cli.c
+
+
+endif
+
+
+clean:
+	rm -f teensy_loader_cli teensy_loader_cli.exe
--- a/Bootloaders/HID/HostLoaderApp/Makefile.bsd
+++ b/Bootloaders/HID/HostLoaderApp/Makefile.bsd
@ -0,0 +1,21 @@
+OS ?= FreeBSD
+#OS ?= NetBSD
+#OS ?= OpenBSD
+
+CFLAGS ?= -O2 -Wall
+CC ?= gcc
+
+.if $(OS) == "FreeBSD"
+CFLAGS += -DUSE_LIBUSB
+LIBS =  -lusb
+.elif $(OS) == "NetBSD" || $(OS) == "OpenBSD"
+CFLAGS += -DUSE_UHID
+LIBS =
+.endif
+
+
+teensy_loader_cli: teensy_loader_cli.c
+	$(CC) $(CFLAGS) -s -o teensy_loader_cli teensy_loader_cli.c $(LIBS)
+
+clean:
+	rm -f teensy_loader_cli
--- a/Bootloaders/HID/HostLoaderApp/gpl3.txt
+++ b/Bootloaders/HID/HostLoaderApp/gpl3.txt
@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so.  This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software.  The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable.  Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products.  If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+  Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary.  To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                       TERMS AND CONDITIONS
+
+  0. Definitions.
+
+  "This License" refers to version 3 of the GNU General Public License.
+
+  "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+  "The Program" refers to any copyrightable work licensed under this
+License.  Each licensee is addressed as "you".  "Licensees" and
+"recipients" may be individuals or organizations.
+
+  To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy.  The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+  A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+  To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy.  Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+  To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies.  Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+  An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License.  If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+  1. Source Code.
+
+  The "source code" for a work means the preferred form of the work
+for making modifications to it.  "Object code" means any non-source
+form of a work.
+
+  A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+  The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form.  A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+  The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities.  However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work.  For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+  The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+  The Corresponding Source for a work in source code form is that
+same work.
+
+  2. Basic Permissions.
+
+  All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met.  This License explicitly affirms your unlimited
+permission to run the unmodified Program.  The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work.  This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+  You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force.  You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright.  Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+  Conveying under any other circumstances is permitted solely under
+the conditions stated below.  Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+  No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+  When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+  4. Conveying Verbatim Copies.
+
+  You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+  You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+  5. Conveying Modified Source Versions.
+
+  You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these conditions:
+
+    a) The work must carry prominent notices stating that you modified
+    it, and giving a relevant date.
+
+    b) The work must carry prominent notices stating that it is
+    released under this License and any conditions added under section
+    7.  This requirement modifies the requirement in section 4 to
+    "keep intact all notices".
+
+    c) You must license the entire work, as a whole, under this
+    License to anyone who comes into possession of a copy.  This
+    License will therefore apply, along with any applicable section 7
+    additional terms, to the whole of the work, and all its parts,
+    regardless of how they are packaged.  This License gives no
+    permission to license the work in any other way, but it does not
+    invalidate such permission if you have separately received it.
+
+    d) If the work has interactive user interfaces, each must display
+    Appropriate Legal Notices; however, if the Program has interactive
+    interfaces that do not display Appropriate Legal Notices, your
+    work need not make them do so.
+
+  A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+"aggregate" if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit.  Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+  6. Conveying Non-Source Forms.
+
+  You may convey a covered work in object code form under the terms
+of sections 4 and 5, provided that you also convey the
+machine-readable Corresponding Source under the terms of this License,
+in one of these ways:
+
+    a) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by the
+    Corresponding Source fixed on a durable physical medium
+    customarily used for software interchange.
+
+    b) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by a
+    written offer, valid for at least three years and valid for as
+    long as you offer spare parts or customer support for that product
+    model, to give anyone who possesses the object code either (1) a
+    copy of the Corresponding Source for all the software in the
+    product that is covered by this License, on a durable physical
+    medium customarily used for software interchange, for a price no
+    more than your reasonable cost of physically performing this
+    conveying of source, or (2) access to copy the
+    Corresponding Source from a network server at no charge.
+
+    c) Convey individual copies of the object code with a copy of the
+    written offer to provide the Corresponding Source.  This
+    alternative is allowed only occasionally and noncommercially, and
+    only if you received the object code with such an offer, in accord
+    with subsection 6b.
+
+    d) Convey the object code by offering access from a designated
+    place (gratis or for a charge), and offer equivalent access to the
+    Corresponding Source in the same way through the same place at no
+    further charge.  You need not require recipients to copy the
+    Corresponding Source along with the object code.  If the place to
+    copy the object code is a network server, the Corresponding Source
+    may be on a different server (operated by you or a third party)
+    that supports equivalent copying facilities, provided you maintain
+    clear directions next to the object code saying where to find the
+    Corresponding Source.  Regardless of what server hosts the
+    Corresponding Source, you remain obligated to ensure that it is
+    available for as long as needed to satisfy these requirements.
+
+    e) Convey the object code using peer-to-peer transmission, provided
+    you inform other peers where the object code and Corresponding
+    Source of the work are being offered to the general public at no
+    charge under subsection 6d.
+
+  A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+  A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal, family,
+or household purposes, or (2) anything designed or sold for incorporation
+into a dwelling.  In determining whether a product is a consumer product,
+doubtful cases shall be resolved in favor of coverage.  For a particular
+product received by a particular user, "normally used" refers to a
+typical or common use of that class of product, regardless of the status
+of the particular user or of the way in which the particular user
+actually uses, or expects or is expected to use, the product.  A product
+is a consumer product regardless of whether the product has substantial
+commercial, industrial or non-consumer uses, unless such uses represent
+the only significant mode of use of the product.
+
+  "Installation Information" for a User Product means any methods,
+procedures, authorization keys, or other information required to install
+and execute modified versions of a covered work in that User Product from
+a modified version of its Corresponding Source.  The information must
+suffice to ensure that the continued functioning of the modified object
+code is in no case prevented or interfered with solely because
+modification has been made.
+
+  If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information.  But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+  The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or updates
+for a work that has been modified or installed by the recipient, or for
+the User Product in which it has been modified or installed.  Access to a
+network may be denied when the modification itself materially and
+adversely affects the operation of the network or violates the rules and
+protocols for communication across the network.
+
+  Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+  7. Additional Terms.
+
+  "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law.  If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+  When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it.  (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.)  You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+  Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+    a) Disclaiming warranty or limiting liability differently from the
+    terms of sections 15 and 16 of this License; or
+
+    b) Requiring preservation of specified reasonable legal notices or
+    author attributions in that material or in the Appropriate Legal
+    Notices displayed by works containing it; or
+
+    c) Prohibiting misrepresentation of the origin of that material, or
+    requiring that modified versions of such material be marked in
+    reasonable ways as different from the original version; or
+
+    d) Limiting the use for publicity purposes of names of licensors or
+    authors of the material; or
+
+    e) Declining to grant rights under trademark law for use of some
+    trade names, trademarks, or service marks; or
+
+    f) Requiring indemnification of licensors and authors of that
+    material by anyone who conveys the material (or modified versions of
+    it) with contractual assumptions of liability to the recipient, for
+    any liability that these contractual assumptions directly impose on
+    those licensors and authors.
+
+  All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10.  If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term.  If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+  If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+  Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+  8. Termination.
+
+  You may not propagate or modify a covered work except as expressly
+provided under this License.  Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+  However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+  Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License.  If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
+not accept this License.  Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
+for enforcing compliance by third parties with this License.
+
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+  You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License.  For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
--- a/Bootloaders/HID/HostLoaderApp/teensy_loader_cli.c
+++ b/Bootloaders/HID/HostLoaderApp/teensy_loader_cli.c
@ -0,0 +1,960 @@
+/* Teensy Loader, Command Line Interface
+ * Program and Reboot Teensy Board with HalfKay Bootloader
+ * http://www.pjrc.com/teensy/loader_cli.html
+ * Copyright 2008-2010, PJRC.COM, LLC
+ *
+ * You may redistribute this program and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software
+ * Foundation, version 3 of the License.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see http://www.gnu.org/licenses/
+ */
+
+/* Want to incorporate this code into a proprietary application??
+ * Just email paul@pjrc.com to ask.  Usually it's not a problem,
+ * but you do need to ask to use this code in any way other than
+ * those permitted by the GNU General Public License, version 3  */
+
+/* For non-root permissions on ubuntu or similar udev-based linux
+ * http://www.pjrc.com/teensy/49-teensy.rules
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdarg.h>
+#include <string.h>
+#include <unistd.h>
+
+void usage(void)
+{
+	fprintf(stderr, "Usage: teensy_loader_cli -mmcu=<MCU> [-w] [-h] [-n] [-v] <file.hex>\n");
+	fprintf(stderr, "\t-w : Wait for device to appear\n");
+	fprintf(stderr, "\t-r : Use hard reboot if device not online\n");
+	fprintf(stderr, "\t-n : No reboot after programming\n");
+	fprintf(stderr, "\t-v : Verbose output\n");
+	fprintf(stderr, "\n<MCU> = atmega32u4 | at90usb162 | at90usb646 | at90usb1286\n");
+	fprintf(stderr, "\nFor more information, please visit:\n");
+	fprintf(stderr, "http://www.pjrc.com/teensy/loader_cli.html\n");
+	exit(1);
+}
+
+// USB Access Functions
+int teensy_open(void);
+int teensy_write(void *buf, int len, double timeout);
+void teensy_close(void);
+int hard_reboot(void);
+
+// Intel Hex File Functions
+int read_intel_hex(const char *filename);
+int ihex_bytes_within_range(int begin, int end);
+void ihex_get_data(int addr, int len, unsigned char *bytes);
+
+// Misc stuff
+int printf_verbose(const char *format, ...);
+void delay(double seconds);
+void die(const char *str, ...);
+void parse_options(int argc, char **argv);
+
+// options (from user via command line args)
+int wait_for_device_to_appear = 0;
+int hard_reboot_device = 0;
+int reboot_after_programming = 1;
+int verbose = 0;
+int code_size = 0, block_size = 0;
+const char *filename=NULL;
+
+
+/****************************************************************/
+/*                                                              */
+/*                       Main Program                           */
+/*                                                              */
+/****************************************************************/
+
+int main(int argc, char **argv)
+{
+	unsigned char buf[260];
+	int num, addr, r, first_block=1, waited=0;
+
+	// parse command line arguments
+	parse_options(argc, argv);
+	if (!filename) {
+		fprintf(stderr, "Filename must be specified\n\n");
+		usage();
+	}
+	if (!code_size) {
+		fprintf(stderr, "MCU type must be specified\n\n");
+		usage();
+	}
+	printf_verbose("Teensy Loader, Command Line, Version 2.0\n");
+
+	// read the intel hex file
+	// this is done first so any error is reported before using USB
+	num = read_intel_hex(filename);
+	if (num < 0) die("error reading intel hex file \"%s\"", filename);
+	printf_verbose("Read \"%s\": %d bytes, %.1f%% usage\n",
+		filename, num, (double)num / (double)code_size * 100.0);
+
+	// open the USB device
+	while (1) {
+		if (teensy_open()) break;
+		if (hard_reboot_device) {
+			if (!hard_reboot()) die("Unable to find rebootor\n");
+			printf_verbose("Hard Reboot performed\n");
+			hard_reboot_device = 0; // only hard reboot once
+			wait_for_device_to_appear = 1;
+		}
+		if (!wait_for_device_to_appear) die("Unable to open device\n");
+		if (!waited) {
+			printf_verbose("Waiting for Teensy device...\n");
+			printf_verbose(" (hint: press the reset button)\n");
+			waited = 1;
+		}
+		delay(0.25);
+	}
+	printf_verbose("Found HalfKay Bootloader\n");
+
+	// if we waited for the device, read the hex file again
+	// perhaps it changed while we were waiting?
+	if (waited) {
+		num = read_intel_hex(filename);
+		if (num < 0) die("error reading intel hex file \"%s\"", filename);
+		printf_verbose("Read \"%s\": %d bytes, %.1f%% usage\n",
+		 	filename, num, (double)num / (double)code_size * 100.0);
+	}
+
+	// program the data
+	printf_verbose("Programming");
+	fflush(stdout);
+	for (addr = 0; addr < code_size; addr += block_size) {
+		if (addr > 0 && !ihex_bytes_within_range(addr, addr + block_size - 1)) {
+			// don't waste time on blocks that are unused,
+			// but always do the first one to erase the chip
+			continue;
+		}
+		printf_verbose(".");
+		if (code_size < 0x10000) {
+			buf[0] = addr & 255;
+			buf[1] = (addr >> 8) & 255;
+		} else {
+			buf[0] = (addr >> 8) & 255;
+			buf[1] = (addr >> 16) & 255;
+		}
+		ihex_get_data(addr, block_size, buf + 2);
+		r = teensy_write(buf, block_size + 2, first_block ? 3.0 : 0.25);
+		if (!r) die("error writing to Teensy\n");
+		first_block = 0;
+	}
+	printf_verbose("\n");
+
+	// reboot to the user's new code
+	if (reboot_after_programming) {
+		printf_verbose("Booting\n");
+		buf[0] = 0xFF;
+		buf[1] = 0xFF;
+		memset(buf + 2, 0, sizeof(buf) - 2);
+		teensy_write(buf, block_size + 2, 0.25);
+	}
+	teensy_close();
+	return 0;
+}
+
+
+
+
+/****************************************************************/
+/*                                                              */
+/*             USB Access - libusb (Linux & FreeBSD)            */
+/*                                                              */
+/****************************************************************/
+
+#if defined(USE_LIBUSB)
+
+// http://libusb.sourceforge.net/doc/index.html
+#include <usb.h>
+
+usb_dev_handle * open_usb_device(int vid, int pid)
+{
+	struct usb_bus *bus;
+	struct usb_device *dev;
+	usb_dev_handle *h;
+	char buf[128];
+	int r;
+
+	usb_init();
+	usb_find_busses();
+	usb_find_devices();
+	//printf_verbose("\nSearching for USB device:\n");
+	for (bus = usb_get_busses(); bus; bus = bus->next) {
+		for (dev = bus->devices; dev; dev = dev->next) {
+			//printf_verbose("bus \"%s\", device \"%s\" vid=%04X, pid=%04X\n",
+			//	bus->dirname, dev->filename,
+			//	dev->descriptor.idVendor,
+			//	dev->descriptor.idProduct
+			//);
+			if (dev->descriptor.idVendor != vid) continue;
+			if (dev->descriptor.idProduct != pid) continue;
+			h = usb_open(dev);
+			if (!h) {
+				printf_verbose("Found device but unable to open");
+				continue;
+			}
+			#ifdef LIBUSB_HAS_GET_DRIVER_NP
+			r = usb_get_driver_np(h, 0, buf, sizeof(buf));
+			if (r >= 0) {
+				r = usb_detach_kernel_driver_np(h, 0);
+				if (r < 0) {
+					usb_close(h);
+					printf_verbose("Device is in use by \"%s\" driver", buf);
+					continue;
+				}
+			}
+			#endif
+			// Mac OS-X - removing this call to usb_claim_interface() might allow
+			// this to work, even though it is a clear misuse of the libusb API.
+			// normally Apple's IOKit should be used on Mac OS-X
+			r = usb_claim_interface(h, 0);
+			if (r < 0) {
+				usb_close(h);
+				printf_verbose("Unable to claim interface, check USB permissions");
+				continue;
+			}
+			return h;
+		}
+	}
+	return NULL;
+}
+
+static usb_dev_handle *libusb_teensy_handle = NULL;
+
+int teensy_open(void)
+{
+	teensy_close();
+	libusb_teensy_handle = open_usb_device(0x16C0, 0x0478);
+	if (libusb_teensy_handle) return 1;
+	return 0;
+}
+
+int teensy_write(void *buf, int len, double timeout)
+{
+	int r;
+
+	if (!libusb_teensy_handle) return 0;
+	r = usb_control_msg(libusb_teensy_handle, 0x21, 9, 0x0200, 0, (char *)buf,
+		len, (int)(timeout * 1000.0));
+	if (r < 0) return 0;
+	return 1;
+}
+
+void teensy_close(void)
+{
+	if (!libusb_teensy_handle) return;
+	usb_release_interface(libusb_teensy_handle, 0);
+	usb_close(libusb_teensy_handle);
+	libusb_teensy_handle = NULL;
+}
+
+int hard_reboot(void)
+{
+	usb_dev_handle *rebootor;
+	int r;
+
+	rebootor = open_usb_device(0x16C0, 0x0477);
+	if (!rebootor) return 0;
+	r = usb_control_msg(rebootor, 0x21, 9, 0x0200, 0, "reboot", 6, 100);
+	usb_release_interface(rebootor, 0);
+	usb_close(rebootor);
+	if (r < 0) return 0;
+	return 1;
+}
+
+#endif
+
+
+/****************************************************************/
+/*                                                              */
+/*               USB Access - Microsoft WIN32                   */
+/*                                                              */
+/****************************************************************/
+
+#if defined(USE_WIN32)
+
+// http://msdn.microsoft.com/en-us/library/ms790932.aspx
+#include <windows.h>
+#include <setupapi.h>
+#include <ddk/hidsdi.h>
+#include <ddk/hidclass.h>
+
+HANDLE open_usb_device(int vid, int pid)
+{
+	GUID guid;
+	HDEVINFO info;
+	DWORD index, required_size;
+	SP_DEVICE_INTERFACE_DATA iface;
+	SP_DEVICE_INTERFACE_DETAIL_DATA *details;
+	HIDD_ATTRIBUTES attrib;
+	HANDLE h;
+	BOOL ret;
+
+	HidD_GetHidGuid(&guid);
+	info = SetupDiGetClassDevs(&guid, NULL, NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
+	if (info == INVALID_HANDLE_VALUE) return NULL;
+	for (index=0; 1 ;index++) {
+		iface.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
+		ret = SetupDiEnumDeviceInterfaces(info, NULL, &guid, index, &iface);
+		if (!ret) {
+			SetupDiDestroyDeviceInfoList(info);
+			break;
+		}
+		SetupDiGetInterfaceDeviceDetail(info, &iface, NULL, 0, &required_size, NULL);
+		details = (SP_DEVICE_INTERFACE_DETAIL_DATA *)malloc(required_size);
+		if (details == NULL) continue;
+		memset(details, 0, required_size);
+		details->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);
+		ret = SetupDiGetDeviceInterfaceDetail(info, &iface, details,
+			required_size, NULL, NULL);
+		if (!ret) {
+			free(details);
+			continue;
+		}
+		h = CreateFile(details->DevicePath, GENERIC_READ|GENERIC_WRITE,
+			FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
+			FILE_FLAG_OVERLAPPED, NULL);
+		free(details);
+		if (h == INVALID_HANDLE_VALUE) continue;
+		attrib.Size = sizeof(HIDD_ATTRIBUTES);
+		ret = HidD_GetAttributes(h, &attrib);
+		if (!ret) {
+			CloseHandle(h);
+			continue;
+		}
+		if (attrib.VendorID != vid || attrib.ProductID != pid) {
+			CloseHandle(h);
+			continue;
+		}
+		SetupDiDestroyDeviceInfoList(info);
+		return h;
+	}
+	return NULL;
+}
+
+int write_usb_device(HANDLE h, void *buf, int len, int timeout)
+{
+	static HANDLE event = NULL;
+	unsigned char tmpbuf[1040];
+	OVERLAPPED ov;
+	DWORD n, r;
+
+	if (len > sizeof(tmpbuf) - 1) return 0;
+	if (event == NULL) {
+		event = CreateEvent(NULL, TRUE, TRUE, NULL);
+		if (!event) return 0;
+	}
+	ResetEvent(&event);
+	memset(&ov, 0, sizeof(ov));
+	ov.hEvent = event;
+	tmpbuf[0] = 0;
+	memcpy(tmpbuf + 1, buf, len);
+	if (!WriteFile(h, tmpbuf, len + 1, NULL, &ov)) {
+		if (GetLastError() != ERROR_IO_PENDING) return 0;
+		r = WaitForSingleObject(event, timeout);
+		if (r == WAIT_TIMEOUT) {
+			CancelIo(h);
+			return 0;
+		}
+		if (r != WAIT_OBJECT_0) return 0;
+	}
+	if (!GetOverlappedResult(h, &ov, &n, FALSE)) return 0;
+	if (n <= 0) return 0;
+	return 1;
+}
+
+void print_win32_err(void)
+{
+        char buf[256];
+        DWORD err;
+
+        err = GetLastError();
+        FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, err,
+                0, buf, sizeof(buf), NULL);
+        printf("err %ld: %s\n", err, buf);
+}
+
+static HANDLE win32_teensy_handle = NULL;
+
+int teensy_open(void)
+{
+	teensy_close();
+	win32_teensy_handle = open_usb_device(0x16C0, 0x0478);
+	if (win32_teensy_handle) return 1;
+	return 0;
+}
+
+int teensy_write(void *buf, int len, double timeout)
+{
+	int r;
+	if (!win32_teensy_handle) return 0;
+	r = write_usb_device(win32_teensy_handle, buf, len, (int)(timeout * 1000.0));
+	//if (!r) print_win32_err();
+	return r;
+}
+
+void teensy_close(void)
+{
+	if (!win32_teensy_handle) return;
+	CloseHandle(win32_teensy_handle);
+	win32_teensy_handle = NULL;
+}
+
+int hard_reboot(void)
+{
+	HANDLE rebootor;
+	int r;
+
+	rebootor = open_usb_device(0x16C0, 0x0477);
+	if (!rebootor) return 0;
+	r = write_usb_device(rebootor, "reboot", 6, 100);
+	CloseHandle(rebootor);
+	return r;
+}
+
+#endif
+
+
+
+/****************************************************************/
+/*                                                              */
+/*             USB Access - Apple's IOKit, Mac OS-X             */
+/*                                                              */
+/****************************************************************/
+
+#if defined(USE_APPLE_IOKIT)
+
+// http://developer.apple.com/technotes/tn2007/tn2187.html
+#include <IOKit/IOKitLib.h>
+#include <IOKit/hid/IOHIDLib.h>
+#include <IOKit/hid/IOHIDDevice.h>
+
+struct usb_list_struct {
+	IOHIDDeviceRef ref;
+	int pid;
+	int vid;
+	struct usb_list_struct *next;
+};
+
+static struct usb_list_struct *usb_list=NULL;
+static IOHIDManagerRef hid_manager=NULL;
+
+void attach_callback(void *context, IOReturn r, void *hid_mgr, IOHIDDeviceRef dev)
+{
+	CFTypeRef type;
+	struct usb_list_struct *n, *p;
+	int32_t pid, vid;
+
+	if (!dev) return;
+	type = IOHIDDeviceGetProperty(dev, CFSTR(kIOHIDVendorIDKey));
+	if (!type || CFGetTypeID(type) != CFNumberGetTypeID()) return;
+	if (!CFNumberGetValue((CFNumberRef)type, kCFNumberSInt32Type, &vid)) return;
+	type = IOHIDDeviceGetProperty(dev, CFSTR(kIOHIDProductIDKey));
+	if (!type || CFGetTypeID(type) != CFNumberGetTypeID()) return;
+	if (!CFNumberGetValue((CFNumberRef)type, kCFNumberSInt32Type, &pid)) return;
+	n = (struct usb_list_struct *)malloc(sizeof(struct usb_list_struct));
+	if (!n) return;
+	//printf("attach callback: vid=%04X, pid=%04X\n", vid, pid);
+	n->ref = dev;
+	n->vid = vid;
+	n->pid = pid;
+	n->next = NULL;
+	if (usb_list == NULL) {
+		usb_list = n;
+	} else {
+		for (p = usb_list; p->next; p = p->next) ;
+		p->next = n;
+	}
+}
+
+void detach_callback(void *context, IOReturn r, void *hid_mgr, IOHIDDeviceRef dev)
+{
+	struct usb_list_struct *p, *tmp, *prev=NULL;
+
+	p = usb_list;
+	while (p) {
+		if (p->ref == dev) {
+			if (prev) {
+				prev->next = p->next;
+			} else {
+				usb_list = p->next;
+			}
+			tmp = p;
+			p = p->next;
+			free(tmp);
+		} else {
+			prev = p;
+			p = p->next;
+		}
+	}
+}
+
+void init_hid_manager(void)
+{
+	CFMutableDictionaryRef dict;
+	IOReturn ret;
+
+	if (hid_manager) return;
+	hid_manager = IOHIDManagerCreate(kCFAllocatorDefault, kIOHIDOptionsTypeNone);
+	if (hid_manager == NULL || CFGetTypeID(hid_manager) != IOHIDManagerGetTypeID()) {
+		if (hid_manager) CFRelease(hid_manager);
+		printf_verbose("no HID Manager - maybe this is a pre-Leopard (10.5) system?\n");
+		return;
+	}
+	dict = CFDictionaryCreateMutable(kCFAllocatorDefault, 0,
+		&kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
+	if (!dict) return;
+	IOHIDManagerSetDeviceMatching(hid_manager, dict);
+	CFRelease(dict);
+	IOHIDManagerScheduleWithRunLoop(hid_manager, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
+	IOHIDManagerRegisterDeviceMatchingCallback(hid_manager, attach_callback, NULL);
+	IOHIDManagerRegisterDeviceRemovalCallback(hid_manager, detach_callback, NULL);
+	ret = IOHIDManagerOpen(hid_manager, kIOHIDOptionsTypeNone);
+	if (ret != kIOReturnSuccess) {
+		IOHIDManagerUnscheduleFromRunLoop(hid_manager,
+			CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
+		CFRelease(hid_manager);
+		printf_verbose("Error opening HID Manager");
+	}
+}
+
+static void do_run_loop(void)
+{
+	while (CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0, true) == kCFRunLoopRunHandledSource) ;
+}
+
+IOHIDDeviceRef open_usb_device(int vid, int pid)
+{
+	struct usb_list_struct *p;
+	IOReturn ret;
+
+	init_hid_manager();
+	do_run_loop();
+	for (p = usb_list; p; p = p->next) {
+		if (p->vid == vid && p->pid == pid) {
+			ret = IOHIDDeviceOpen(p->ref, kIOHIDOptionsTypeNone);
+			if (ret == kIOReturnSuccess) return p->ref;
+		}
+	}
+	return NULL;
+}
+
+void close_usb_device(IOHIDDeviceRef dev)
+{
+	struct usb_list_struct *p;
+
+	do_run_loop();
+	for (p = usb_list; p; p = p->next) {
+		if (p->ref == dev) {
+			IOHIDDeviceClose(dev, kIOHIDOptionsTypeNone);
+			return;
+		}
+	}
+}
+
+static IOHIDDeviceRef iokit_teensy_reference = NULL;
+
+int teensy_open(void)
+{
+	teensy_close();
+	iokit_teensy_reference = open_usb_device(0x16C0, 0x0478);
+	if (iokit_teensy_reference) return 1;
+	return 0;
+}
+
+int teensy_write(void *buf, int len, double timeout)
+{
+	IOReturn ret;
+
+	// timeouts do not work on OS-X
+	// IOHIDDeviceSetReportWithCallback is not implemented
+	// even though Apple documents it with a code example!
+	// submitted to Apple on 22-sep-2009, problem ID 7245050
+	if (!iokit_teensy_reference) return 0;
+	ret = IOHIDDeviceSetReport(iokit_teensy_reference,
+		kIOHIDReportTypeOutput, 0, buf, len);
+	if (ret == kIOReturnSuccess) return 1;
+	return 0;
+}
+
+void teensy_close(void)
+{
+	if (!iokit_teensy_reference) return;
+	close_usb_device(iokit_teensy_reference);
+	iokit_teensy_reference = NULL;
+}
+
+int hard_reboot(void)
+{
+	IOHIDDeviceRef rebootor;
+	IOReturn ret;
+
+	rebootor = open_usb_device(0x16C0, 0x0477);
+	if (!rebootor) return 0;
+	ret = IOHIDDeviceSetReport(rebootor,
+		kIOHIDReportTypeOutput, 0, (uint8_t *)("reboot"), 6);
+	close_usb_device(rebootor);
+	if (ret == kIOReturnSuccess) return 1;
+	return 0;
+}
+
+#endif
+
+
+
+/****************************************************************/
+/*                                                              */
+/*              USB Access - BSD's UHID driver                  */
+/*                                                              */
+/****************************************************************/
+
+#if defined(USE_UHID)
+
+// Thanks to Todd T Fries for help getting this working on OpenBSD
+// and to Chris Kuethe for the initial patch to use UHID.
+
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <dev/usb/usb.h>
+#ifndef USB_GET_DEVICEINFO
+#include <dev/usb/usb_ioctl.h>
+#endif
+
+int open_usb_device(int vid, int pid)
+{
+	int r, fd;
+	DIR *dir;
+	struct dirent *d;
+	struct usb_device_info info;
+	char buf[256];
+
+	dir = opendir("/dev");
+	if (!dir) return -1;
+	while ((d = readdir(dir)) != NULL) {
+		if (strncmp(d->d_name, "uhid", 4) != 0) continue;
+		snprintf(buf, sizeof(buf), "/dev/%s", d->d_name);
+		fd = open(buf, O_RDWR);
+		if (fd < 0) continue;
+		r = ioctl(fd, USB_GET_DEVICEINFO, &info);
+		if (r < 0) {
+			// NetBSD: added in 2004
+			// OpenBSD: added November 23, 2009
+			// FreeBSD: missing (FreeBSD 8.0) - USE_LIBUSB works!
+			die("Error: your uhid driver does not support"
+			  " USB_GET_DEVICEINFO, please upgrade!\n");
+			close(fd);
+			closedir(dir);
+			exit(1);
+		}
+		//printf("%s: v=%d, p=%d\n", buf, info.udi_vendorNo, info.udi_productNo);
+		if (info.udi_vendorNo == vid && info.udi_productNo == pid) {
+			closedir(dir);
+			return fd;
+		}
+		close(fd);
+	}
+	closedir(dir);
+	return -1;
+}
+
+static int uhid_teensy_fd = -1;
+
+int teensy_open(void)
+{
+	teensy_close();
+	uhid_teensy_fd = open_usb_device(0x16C0, 0x0478);
+	if (uhid_teensy_fd < 0) return 0;
+	return 1;
+}
+
+int teensy_write(void *buf, int len, double timeout)
+{
+	int r;
+
+	// TODO: imeplement timeout... how??
+	r = write(uhid_teensy_fd, buf, len);
+	if (r == len) return 1;
+	return 0;
+}
+
+void teensy_close(void)
+{
+	if (uhid_teensy_fd >= 0) {
+		close(uhid_teensy_fd);
+		uhid_teensy_fd = -1;
+	}
+}
+
+int hard_reboot(void)
+{
+	int r, rebootor_fd;
+
+	rebootor_fd = open_usb_device(0x16C0, 0x0477);
+	if (rebootor_fd < 0) return 0;
+	r = write(rebootor_fd, "reboot", 6);
+	delay(0.1);
+	close(rebootor_fd);
+	if (r == 6) return 1;
+	return 0;
+}
+
+#endif
+
+
+
+/****************************************************************/
+/*                                                              */
+/*                     Read Intel Hex File                      */
+/*                                                              */
+/****************************************************************/
+
+// the maximum flash image size we can support
+// chips with larger memory may be used, but only this
+// much intel-hex data can be loaded into memory!
+#define MAX_MEMORY_SIZE 0x10000
+
+static unsigned char firmware_image[MAX_MEMORY_SIZE];
+static unsigned char firmware_mask[MAX_MEMORY_SIZE];
+static int end_record_seen=0;
+static int byte_count;
+static unsigned int extended_addr = 0;
+static int parse_hex_line(char *line);
+
+int read_intel_hex(const char *filename)
+{
+	FILE *fp;
+	int i, lineno=0;
+	char buf[1024];
+
+	byte_count = 0;
+	end_record_seen = 0;
+	for (i=0; i<MAX_MEMORY_SIZE; i++) {
+		firmware_image[i] = 0xFF;
+		firmware_mask[i] = 0;
+	}
+	extended_addr = 0;
+
+	fp = fopen(filename, "r");
+	if (fp == NULL) {
+		//printf("Unable to read file %s\n", filename);
+		return -1;
+	}
+	while (!feof(fp)) {
+		*buf = '\0';
+		if (!fgets(buf, sizeof(buf), fp)) break;
+		lineno++;
+		if (*buf) {
+			if (parse_hex_line(buf) == 0) {
+				//printf("Warning, parse error line %d\n", lineno);
+				return -2;
+			}
+		}
+		if (end_record_seen) break;
+		if (feof(stdin)) break;
+	}
+	fclose(fp);
+	return byte_count;
+}
+
+
+/* from ihex.c, at http://www.pjrc.com/tech/8051/pm2_docs/intel-hex.html */
+
+/* parses a line of intel hex code, stores the data in bytes[] */
+/* and the beginning address in addr, and returns a 1 if the */
+/* line was valid, or a 0 if an error occured.  The variable */
+/* num gets the number of bytes that were stored into bytes[] */
+
+
+int
+parse_hex_line(char *line)
+{
+	int addr, code, num;
+        int sum, len, cksum, i;
+        char *ptr;
+        
+        num = 0;
+        if (line[0] != ':') return 0;
+        if (strlen(line) < 11) return 0;
+        ptr = line+1;
+        if (!sscanf(ptr, "%02x", &len)) return 0;
+        ptr += 2;
+        if ((int)strlen(line) < (11 + (len * 2)) ) return 0;
+        if (!sscanf(ptr, "%04x", &addr)) return 0;
+        ptr += 4;
+          /* printf("Line: length=%d Addr=%d\n", len, addr); */
+        if (!sscanf(ptr, "%02x", &code)) return 0;
+	if (addr + extended_addr + len >= MAX_MEMORY_SIZE) return 0;
+        ptr += 2;
+        sum = (len & 255) + ((addr >> 8) & 255) + (addr & 255) + (code & 255);
+	if (code != 0) {
+		if (code == 1) {
+			end_record_seen = 1;
+			return 1;
+		}
+		if (code == 2 && len == 2) {
+			if (!sscanf(ptr, "%04x", &i)) return 1;
+			ptr += 4;
+			sum += ((i >> 8) & 255) + (i & 255);
+        		if (!sscanf(ptr, "%02x", &cksum)) return 1;
+			if (((sum & 255) + (cksum & 255)) & 255) return 1;
+			extended_addr = i << 4;
+			//printf("ext addr = %05X\n", extended_addr);
+		}
+		if (code == 4 && len == 2) {
+			if (!sscanf(ptr, "%04x", &i)) return 1;
+			ptr += 4;
+			sum += ((i >> 8) & 255) + (i & 255);
+        		if (!sscanf(ptr, "%02x", &cksum)) return 1;
+			if (((sum & 255) + (cksum & 255)) & 255) return 1;
+			extended_addr = i << 16;
+			//printf("ext addr = %08X\n", extended_addr);
+		}
+		return 1;	// non-data line
+	}
+	byte_count += len;
+        while (num != len) {
+                if (sscanf(ptr, "%02x", &i) != 1) return 0;
+		i &= 255;
+		firmware_image[addr + extended_addr + num] = i;
+		firmware_mask[addr + extended_addr + num] = 1;
+                ptr += 2;
+                sum += i;
+                (num)++;
+                if (num >= 256) return 0;
+        }
+        if (!sscanf(ptr, "%02x", &cksum)) return 0;
+        if (((sum & 255) + (cksum & 255)) & 255) return 0; /* checksum error */
+        return 1;
+}
+
+int ihex_bytes_within_range(int begin, int end)
+{
+	int i;
+
+	if (begin < 0 || begin >= MAX_MEMORY_SIZE ||
+	   end < 0 || end >= MAX_MEMORY_SIZE) {
+		return 0;
+	}
+	for (i=begin; i<=end; i++) {
+		if (firmware_mask[i]) return 1;
+	}
+	return 0;
+}
+
+void ihex_get_data(int addr, int len, unsigned char *bytes)
+{
+	int i;
+
+	if (addr < 0 || len < 0 || addr + len >= MAX_MEMORY_SIZE) {
+		for (i=0; i<len; i++) {
+			bytes[i] = 255;
+		}
+		return;
+	}
+	for (i=0; i<len; i++) {
+		if (firmware_mask[addr]) {
+			bytes[i] = firmware_image[addr];
+		} else {
+			bytes[i] = 255;
+		}
+		addr++;
+	}
+}
+
+/****************************************************************/
+/*                                                              */
+/*                       Misc Functions                         */
+/*                                                              */
+/****************************************************************/
+
+int printf_verbose(const char *format, ...)
+{
+	va_list ap;
+	int r;
+
+	va_start(ap, format);
+	if (verbose) {
+		r = vprintf(format, ap);
+		fflush(stdout);
+		return r;
+	}
+	return 0;
+}
+
+void delay(double seconds)
+{
+	#ifdef WIN32
+	Sleep(seconds * 1000.0);
+	#else
+	usleep(seconds * 1000000.0);
+	#endif
+}
+
+void die(const char *str, ...)
+{
+	va_list  ap;
+
+	va_start(ap, str);
+	vfprintf(stderr, str, ap);
+	fprintf(stderr, "\n");
+	exit(1);
+}
+
+#if defined(WIN32)
+#define strcasecmp stricmp
+#endif
+
+void parse_options(int argc, char **argv)
+{
+	int i;
+	const char *arg;
+
+	for (i=1; i<argc; i++) {
+		arg = argv[i];
+		//printf("arg: %s\n", arg);
+		if (*arg == '-') {
+			if (strcmp(arg, "-w") == 0) {
+				wait_for_device_to_appear = 1;
+			} else if (strcmp(arg, "-r") == 0) {
+				hard_reboot_device = 1;
+			} else if (strcmp(arg, "-n") == 0) {
+				reboot_after_programming = 0;
+			} else if (strcmp(arg, "-v") == 0) {
+				verbose = 1;
+			} else if (strncmp(arg, "-mmcu=", 6) == 0) {
+				if (strcasecmp(arg+6, "at90usb162") == 0) {
+					code_size = 15872;
+					block_size = 128;
+				} else if (strcasecmp(arg+6, "atmega32u4") == 0) {
+					code_size = 32256;
+					block_size = 128;
+				} else if (strcasecmp(arg+6, "at90usb646") == 0) {
+					code_size = 64512;
+					block_size = 256;
+				} else if (strcasecmp(arg+6, "at90usb1286") == 0) {
+					code_size = 130048;
+					block_size = 256;
+				} else {
+					die("Unknown MCU type\n");
+				}
+			}
+		} else {
+			filename = argv[i];
+		}
+	}
+}
+
--- a/Bootloaders/HID/makefile
+++ b/Bootloaders/HID/makefile
@ -0,0 +1,703 @@
+# Hey Emacs, this is a -*- makefile -*-
+#----------------------------------------------------------------------------
+# WinAVR Makefile Template written by Eric B. Weddington, Jörg Wunsch, et al.
+#  >> Modified for use with the LUFA project. <<
+#
+# Released to the Public Domain
+#
+# Additional material for this makefile was written by:
+# Peter Fleury
+# Tim Henigan
+# Colin O'Flynn
+# Reiner Patommel
+# Markus Pfaff
+# Sander Pool
+# Frederik Rouleau
+# Carlos Lamas
+# Dean Camera
+# Opendous Inc.
+# Denver Gingerich
+#
+#----------------------------------------------------------------------------
+# On command line:
+#
+# make all = Make software.
+#
+# make clean = Clean out built project files.
+#
+# make coff = Convert ELF to AVR COFF.
+#
+# make extcoff = Convert ELF to AVR Extended COFF.
+#
+# make program = Download the hex file to the device, using avrdude.
+#                Please customize the avrdude settings below first!
+#
+# make doxygen = Generate DoxyGen documentation for the project (must have
+#                DoxyGen installed)
+#
+# make debug = Start either simulavr or avarice as specified for debugging,
+#              with avr-gdb or avr-insight as the front end for debugging.
+#
+# make filename.s = Just compile filename.c into the assembler code only.
+#
+# make filename.i = Create a preprocessed source file for use in submitting
+#                   bug reports to the GCC project.
+#
+# To rebuild project do "make clean" then "make all".
+#----------------------------------------------------------------------------
+
+
+# MCU name
+MCU = at90usb1287
+
+
+# Target board (see library "Board Types" documentation, NONE for projects not requiring
+# LUFA board drivers). If USER is selected, put custom board drivers in a directory called
+# "Board" inside the application directory.
+BOARD = USBKEY
+
+
+# Processor frequency.
+#     This will define a symbol, F_CPU, in all source code files equal to the
+#     processor frequency in Hz. You can then use this symbol in your source code to
+#     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
+#     automatically to create a 32-bit value in your source code.
+#
+#     This will be an integer division of F_CLOCK below, as it is sourced by
+#     F_CLOCK after it has run through any CPU prescalers. Note that this value
+#     does not *change* the processor frequency - it should merely be updated to
+#     reflect the processor speed set externally so that the code can use accurate
+#     software delays.
+F_CPU = 8000000
+
+
+# Input clock frequency.
+#     This will define a symbol, F_CLOCK, in all source code files equal to the
+#     input clock frequency (before any prescaling is performed) in Hz. This value may
+#     differ from F_CPU if prescaling is used on the latter, and is required as the
+#     raw input clock is fed directly to the PLL sections of the AVR for high speed
+#     clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
+#     at the end, this will be done automatically to create a 32-bit value in your
+#     source code.
+#
+#     If no clock division is performed on the input clock inside the AVR (via the
+#     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
+F_CLOCK = $(F_CPU)
+
+
+# Starting byte address of the bootloader, as a byte address - computed via the formula
+#   BOOT_START = ((FLASH_SIZE_KB - BOOT_SECTION_SIZE_KB) * 1024)
+#
+# Note that the bootloader size and start address given in AVRStudio is in words and not
+# bytes, and so will need to be doubled to obtain the byte address needed by AVR-GCC.
+FLASH_SIZE_KB        = 128
+BOOT_SECTION_SIZE_KB = 2
+BOOT_START           = 0x$(shell echo "obase=16; ($(FLASH_SIZE_KB) - $(BOOT_SECTION_SIZE_KB)) * 1024" | bc)
+
+
+# Output format. (can be srec, ihex, binary)
+FORMAT = ihex
+
+
+# Target file name (without extension).
+TARGET = BootloaderHID
+
+
+# Object files directory
+#     To put object files in current directory, use a dot (.), do NOT make
+#     this an empty or blank macro!
+OBJDIR = .
+
+
+# Path to the LUFA library
+LUFA_PATH = ../..
+
+
+# LUFA library compile-time options and predefined tokens
+LUFA_OPTS  = -D USB_DEVICE_ONLY
+LUFA_OPTS += -D DEVICE_STATE_AS_GPIOR=0
+LUFA_OPTS += -D ORDERED_EP_CONFIG
+LUFA_OPTS += -D FIXED_CONTROL_ENDPOINT_SIZE=8
+LUFA_OPTS += -D FIXED_NUM_CONFIGURATIONS=1
+LUFA_OPTS += -D USE_RAM_DESCRIPTORS
+LUFA_OPTS += -D USE_STATIC_OPTIONS="(USB_DEVICE_OPT_FULLSPEED | USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL)"
+LUFA_OPTS += -D NO_INTERNAL_SERIAL
+LUFA_OPTS += -D NO_DEVICE_SELF_POWER
+LUFA_OPTS += -D NO_DEVICE_REMOTE_WAKEUP
+LUFA_OPTS += -D NO_SOF_EVENTS
+
+#LUFA_OPTS += -D NO_BLOCK_SUPPORT
+#LUFA_OPTS += -D NO_EEPROM_BYTE_SUPPORT
+#LUFA_OPTS += -D NO_FLASH_BYTE_SUPPORT
+#LUFA_OPTS += -D NO_LOCK_BYTE_WRITE_SUPPORT
+
+
+# Create the LUFA source path variables by including the LUFA root makefile
+include $(LUFA_PATH)/LUFA/makefile
+
+
+# List C source files here. (C dependencies are automatically generated.)
+SRC = $(TARGET).c                                                 \
+	  Descriptors.c                                               \
+	  $(LUFA_SRC_USB)                                             \
+
+
+# List C++ source files here. (C dependencies are automatically generated.)
+CPPSRC =
+
+
+# List Assembler source files here.
+#     Make them always end in a capital .S.  Files ending in a lowercase .s
+#     will not be considered source files but generated files (assembler
+#     output from the compiler), and will be deleted upon "make clean"!
+#     Even though the DOS/Win* filesystem matches both .s and .S the same,
+#     it will preserve the spelling of the filenames, and gcc itself does
+#     care about how the name is spelled on its command-line.
+ASRC =
+
+
+# Optimization level, can be [0, 1, 2, 3, s].
+#     0 = turn off optimization. s = optimize for size.
+#     (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
+OPT = s
+
+
+# Debugging format.
+#     Native formats for AVR-GCC's -g are dwarf-2 [default] or stabs.
+#     AVR Studio 4.10 requires dwarf-2.
+#     AVR [Extended] COFF format requires stabs, plus an avr-objcopy run.
+DEBUG = dwarf-2
+
+
+# List any extra directories to look for include files here.
+#     Each directory must be seperated by a space.
+#     Use forward slashes for directory separators.
+#     For a directory that has spaces, enclose it in quotes.
+EXTRAINCDIRS = $(LUFA_PATH)/
+
+
+# Compiler flag to set the C Standard level.
+#     c89   = "ANSI" C
+#     gnu89 = c89 plus GCC extensions
+#     c99   = ISO C99 standard (not yet fully implemented)
+#     gnu99 = c99 plus GCC extensions
+CSTANDARD = -std=c99
+
+
+# Place -D or -U options here for C sources
+CDEFS  = -DF_CPU=$(F_CPU)UL
+CDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CDEFS += -DBOARD=BOARD_$(BOARD)
+CDEFS += -DBOOT_START_ADDR=$(BOOT_START)UL
+CDEFS += $(LUFA_OPTS)
+
+
+# Place -D or -U options here for ASM sources
+ADEFS  = -DF_CPU=$(F_CPU)
+ADEFS += -DF_CLOCK=$(F_CLOCK)UL
+ADEFS += -DBOARD=BOARD_$(BOARD)
+ADEFS += -DBOOT_START_ADDR=$(BOOT_START)UL
+ADEFS += $(LUFA_OPTS)
+
+# Place -D or -U options here for C++ sources
+CPPDEFS  = -DF_CPU=$(F_CPU)UL
+CPPDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CPPDEFS += -DBOARD=BOARD_$(BOARD)
+CPPDEFS += -DBOOT_START_ADDR=$(BOOT_START)UL
+CPPDEFS += $(LUFA_OPTS)
+#CPPDEFS += -D__STDC_LIMIT_MACROS
+#CPPDEFS += -D__STDC_CONSTANT_MACROS
+
+
+
+#---------------- Compiler Options C ----------------
+#  -g*:          generate debugging information
+#  -O*:          optimization level
+#  -f...:        tuning, see GCC manual and avr-libc documentation
+#  -Wall...:     warning level
+#  -Wa,...:      tell GCC to pass this to the assembler.
+#    -adhlns...: create assembler listing
+CFLAGS = -g$(DEBUG)
+CFLAGS += $(CDEFS)
+CFLAGS += -O$(OPT)
+CFLAGS += -funsigned-char
+CFLAGS += -funsigned-bitfields
+CFLAGS += -ffunction-sections
+CFLAGS += -fno-inline-small-functions
+CFLAGS += -fpack-struct
+CFLAGS += -fshort-enums
+CFLAGS += -fno-strict-aliasing
+CFLAGS += -Wall
+CFLAGS += -Wstrict-prototypes
+#CFLAGS += -mshort-calls
+#CFLAGS += -fno-unit-at-a-time
+#CFLAGS += -Wundef
+#CFLAGS += -Wunreachable-code
+#CFLAGS += -Wsign-compare
+CFLAGS += -Wa,-adhlns=$(<:%.c=$(OBJDIR)/%.lst)
+CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
+CFLAGS += $(CSTANDARD)
+
+
+#---------------- Compiler Options C++ ----------------
+#  -g*:          generate debugging information
+#  -O*:          optimization level
+#  -f...:        tuning, see GCC manual and avr-libc documentation
+#  -Wall...:     warning level
+#  -Wa,...:      tell GCC to pass this to the assembler.
+#    -adhlns...: create assembler listing
+CPPFLAGS = -g$(DEBUG)
+CPPFLAGS += $(CPPDEFS)
+CPPFLAGS += -O$(OPT)
+CPPFLAGS += -funsigned-char
+CPPFLAGS += -funsigned-bitfields
+CPPFLAGS += -fpack-struct
+CPPFLAGS += -fshort-enums
+CPPFLAGS += -fno-exceptions
+CPPFLAGS += -Wall
+CPPFLAGS += -Wundef
+#CPPFLAGS += -mshort-calls
+#CPPFLAGS += -fno-unit-at-a-time
+#CPPFLAGS += -Wstrict-prototypes
+#CPPFLAGS += -Wunreachable-code
+#CPPFLAGS += -Wsign-compare
+CPPFLAGS += -Wa,-adhlns=$(<:%.cpp=$(OBJDIR)/%.lst)
+CPPFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
+#CPPFLAGS += $(CSTANDARD)
+
+
+#---------------- Assembler Options ----------------
+#  -Wa,...:   tell GCC to pass this to the assembler.
+#  -adhlns:   create listing
+#  -gstabs:   have the assembler create line number information; note that
+#             for use in COFF files, additional information about filenames
+#             and function names needs to be present in the assembler source
+#             files -- see avr-libc docs [FIXME: not yet described there]
+#  -listing-cont-lines: Sets the maximum number of continuation lines of hex
+#       dump that will be displayed for a given single line of source input.
+ASFLAGS = $(ADEFS) -Wa,-adhlns=$(<:%.S=$(OBJDIR)/%.lst),-gstabs,--listing-cont-lines=100
+
+
+#---------------- Library Options ----------------
+# Minimalistic printf version
+PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min
+
+# Floating point printf version (requires MATH_LIB = -lm below)
+PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt
+
+# If this is left blank, then it will use the Standard printf version.
+PRINTF_LIB =
+#PRINTF_LIB = $(PRINTF_LIB_MIN)
+#PRINTF_LIB = $(PRINTF_LIB_FLOAT)
+
+
+# Minimalistic scanf version
+SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min
+
+# Floating point + %[ scanf version (requires MATH_LIB = -lm below)
+SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt
+
+# If this is left blank, then it will use the Standard scanf version.
+SCANF_LIB =
+#SCANF_LIB = $(SCANF_LIB_MIN)
+#SCANF_LIB = $(SCANF_LIB_FLOAT)
+
+
+MATH_LIB = -lm
+
+
+# List any extra directories to look for libraries here.
+#     Each directory must be seperated by a space.
+#     Use forward slashes for directory separators.
+#     For a directory that has spaces, enclose it in quotes.
+EXTRALIBDIRS =
+
+
+
+#---------------- External Memory Options ----------------
+
+# 64 KB of external RAM, starting after internal RAM (ATmega128!),
+# used for variables (.data/.bss) and heap (malloc()).
+#EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff
+
+# 64 KB of external RAM, starting after internal RAM (ATmega128!),
+# only used for heap (malloc()).
+#EXTMEMOPTS = -Wl,--section-start,.data=0x801100,--defsym=__heap_end=0x80ffff
+
+EXTMEMOPTS =
+
+
+
+#---------------- Linker Options ----------------
+#  -Wl,...:     tell GCC to pass this to linker.
+#    -Map:      create map file
+#    --cref:    add cross reference to  map file
+LDFLAGS  = -Wl,-Map=$(TARGET).map,--cref
+LDFLAGS += -Wl,--section-start=.text=$(BOOT_START)
+LDFLAGS += -Wl,--relax
+LDFLAGS += -Wl,--gc-sections
+LDFLAGS += $(EXTMEMOPTS)
+LDFLAGS += $(patsubst %,-L%,$(EXTRALIBDIRS))
+LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
+#LDFLAGS += -T linker_script.x
+
+
+
+#---------------- Programming Options (avrdude) ----------------
+
+# Programming hardware
+# Type: avrdude -c ?
+# to get a full listing.
+#
+AVRDUDE_PROGRAMMER = jtagmkII
+
+# com1 = serial port. Use lpt1 to connect to parallel port.
+AVRDUDE_PORT = usb
+
+AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
+#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
+
+
+# Uncomment the following if you want avrdude's erase cycle counter.
+# Note that this counter needs to be initialized first using -Yn,
+# see avrdude manual.
+#AVRDUDE_ERASE_COUNTER = -y
+
+# Uncomment the following if you do /not/ wish a verification to be
+# performed after programming the device.
+#AVRDUDE_NO_VERIFY = -V
+
+# Increase verbosity level.  Please use this when submitting bug
+# reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude>
+# to submit bug reports.
+#AVRDUDE_VERBOSE = -v -v
+
+AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
+AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY)
+AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE)
+AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER)
+
+
+
+#---------------- Debugging Options ----------------
+
+# For simulavr only - target MCU frequency.
+DEBUG_MFREQ = $(F_CPU)
+
+# Set the DEBUG_UI to either gdb or insight.
+# DEBUG_UI = gdb
+DEBUG_UI = insight
+
+# Set the debugging back-end to either avarice, simulavr.
+DEBUG_BACKEND = avarice
+#DEBUG_BACKEND = simulavr
+
+# GDB Init Filename.
+GDBINIT_FILE = __avr_gdbinit
+
+# When using avarice settings for the JTAG
+JTAG_DEV = /dev/com1
+
+# Debugging port used to communicate between GDB / avarice / simulavr.
+DEBUG_PORT = 4242
+
+# Debugging host used to communicate between GDB / avarice / simulavr, normally
+#     just set to localhost unless doing some sort of crazy debugging when
+#     avarice is running on a different computer.
+DEBUG_HOST = localhost
+
+
+
+#============================================================================
+
+
+# Define programs and commands.
+SHELL = sh
+CC = avr-gcc
+OBJCOPY = avr-objcopy
+OBJDUMP = avr-objdump
+SIZE = avr-size
+AR = avr-ar rcs
+NM = avr-nm
+AVRDUDE = avrdude
+REMOVE = rm -f
+REMOVEDIR = rm -rf
+COPY = cp
+WINSHELL = cmd
+
+
+# Define Messages
+# English
+MSG_ERRORS_NONE = Errors: none
+MSG_BEGIN = -------- begin --------
+MSG_END = --------  end  --------
+MSG_SIZE_BEFORE = Size before:
+MSG_SIZE_AFTER = Size after:
+MSG_COFF = Converting to AVR COFF:
+MSG_EXTENDED_COFF = Converting to AVR Extended COFF:
+MSG_FLASH = Creating load file for Flash:
+MSG_EEPROM = Creating load file for EEPROM:
+MSG_EXTENDED_LISTING = Creating Extended Listing:
+MSG_SYMBOL_TABLE = Creating Symbol Table:
+MSG_LINKING = Linking:
+MSG_COMPILING = Compiling C:
+MSG_COMPILING_CPP = Compiling C++:
+MSG_ASSEMBLING = Assembling:
+MSG_CLEANING = Cleaning project:
+MSG_CREATING_LIBRARY = Creating library:
+
+
+
+
+# Define all object files.
+OBJ = $(SRC:%.c=$(OBJDIR)/%.o) $(CPPSRC:%.cpp=$(OBJDIR)/%.o) $(ASRC:%.S=$(OBJDIR)/%.o)
+
+# Define all listing files.
+LST = $(SRC:%.c=$(OBJDIR)/%.lst) $(CPPSRC:%.cpp=$(OBJDIR)/%.lst) $(ASRC:%.S=$(OBJDIR)/%.lst)
+
+
+# Compiler flags to generate dependency files.
+GENDEPFLAGS = -MMD -MP -MF .dep/$(@F).d
+
+
+# Combine all necessary flags and optional flags.
+# Add target processor to flags.
+ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) $(GENDEPFLAGS)
+ALL_CPPFLAGS = -mmcu=$(MCU) -I. -x c++ $(CPPFLAGS) $(GENDEPFLAGS)
+ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
+
+
+
+
+
+# Default target.
+all: begin gccversion sizebefore build sizeafter end
+
+# Change the build target to build a HEX file or a library.
+build: elf hex eep lss sym
+#build: lib
+
+
+elf: $(TARGET).elf
+hex: $(TARGET).hex
+eep: $(TARGET).eep
+lss: $(TARGET).lss
+sym: $(TARGET).sym
+LIBNAME=lib$(TARGET).a
+lib: $(LIBNAME)
+
+
+
+# Eye candy.
+# AVR Studio 3.x does not check make's exit code but relies on
+# the following magic strings to be generated by the compile job.
+begin:
+	@echo
+	@echo $(MSG_BEGIN)
+
+end:
+	@echo $(MSG_END)
+	@echo
+
+
+# Display size of file.
+HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
+
+sizebefore:
+	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
+	2>/dev/null; echo; fi
+
+sizeafter:
+	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); \
+	2>/dev/null; echo; fi
+
+
+
+# Display compiler version information.
+gccversion :
+	@$(CC) --version
+
+
+# Program the device.
+program: $(TARGET).hex $(TARGET).eep
+	$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)
+
+
+# Generate avr-gdb config/init file which does the following:
+#     define the reset signal, load the target file, connect to target, and set
+#     a breakpoint at main().
+gdb-config:
+	@$(REMOVE) $(GDBINIT_FILE)
+	@echo define reset >> $(GDBINIT_FILE)
+	@echo SIGNAL SIGHUP >> $(GDBINIT_FILE)
+	@echo end >> $(GDBINIT_FILE)
+	@echo file $(TARGET).elf >> $(GDBINIT_FILE)
+	@echo target remote $(DEBUG_HOST):$(DEBUG_PORT)  >> $(GDBINIT_FILE)
+ifeq ($(DEBUG_BACKEND),simulavr)
+	@echo load  >> $(GDBINIT_FILE)
+endif
+	@echo break main >> $(GDBINIT_FILE)
+
+debug: gdb-config $(TARGET).elf
+ifeq ($(DEBUG_BACKEND), avarice)
+	@echo Starting AVaRICE - Press enter when "waiting to connect" message displays.
+	@$(WINSHELL) /c start avarice --jtag $(JTAG_DEV) --erase --program --file \
+	$(TARGET).elf $(DEBUG_HOST):$(DEBUG_PORT)
+	@$(WINSHELL) /c pause
+
+else
+	@$(WINSHELL) /c start simulavr --gdbserver --device $(MCU) --clock-freq \
+	$(DEBUG_MFREQ) --port $(DEBUG_PORT)
+endif
+	@$(WINSHELL) /c start avr-$(DEBUG_UI) --command=$(GDBINIT_FILE)
+
+
+
+
+# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
+COFFCONVERT = $(OBJCOPY) --debugging
+COFFCONVERT += --change-section-address .data-0x800000
+COFFCONVERT += --change-section-address .bss-0x800000
+COFFCONVERT += --change-section-address .noinit-0x800000
+COFFCONVERT += --change-section-address .eeprom-0x810000
+
+
+
+coff: $(TARGET).elf
+	@echo
+	@echo $(MSG_COFF) $(TARGET).cof
+	$(COFFCONVERT) -O coff-avr $< $(TARGET).cof
+
+
+extcoff: $(TARGET).elf
+	@echo
+	@echo $(MSG_EXTENDED_COFF) $(TARGET).cof
+	$(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof
+
+
+
+# Create final output files (.hex, .eep) from ELF output file.
+%.hex: %.elf
+	@echo
+	@echo $(MSG_FLASH) $@
+	$(OBJCOPY) -O $(FORMAT) -R .eeprom -R .fuse -R .lock $< $@
+
+%.eep: %.elf
+	@echo
+	@echo $(MSG_EEPROM) $@
+	-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
+	--change-section-lma .eeprom=0 --no-change-warnings -O $(FORMAT) $< $@ || exit 0
+
+# Create extended listing file from ELF output file.
+%.lss: %.elf
+	@echo
+	@echo $(MSG_EXTENDED_LISTING) $@
+	$(OBJDUMP) -h -S -z $< > $@
+
+# Create a symbol table from ELF output file.
+%.sym: %.elf
+	@echo
+	@echo $(MSG_SYMBOL_TABLE) $@
+	$(NM) -n $< > $@
+
+
+
+# Create library from object files.
+.SECONDARY : $(TARGET).a
+.PRECIOUS : $(OBJ)
+%.a: $(OBJ)
+	@echo
+	@echo $(MSG_CREATING_LIBRARY) $@
+	$(AR) $@ $(OBJ)
+
+
+# Link: create ELF output file from object files.
+.SECONDARY : $(TARGET).elf
+.PRECIOUS : $(OBJ)
+%.elf: $(OBJ)
+	@echo
+	@echo $(MSG_LINKING) $@
+	$(CC) $(ALL_CFLAGS) $^ --output $@ $(LDFLAGS)
+
+
+# Compile: create object files from C source files.
+$(OBJDIR)/%.o : %.c
+	@echo
+	@echo $(MSG_COMPILING) $<
+	$(CC) -c $(ALL_CFLAGS) $< -o $@
+
+
+# Compile: create object files from C++ source files.
+$(OBJDIR)/%.o : %.cpp
+	@echo
+	@echo $(MSG_COMPILING_CPP) $<
+	$(CC) -c $(ALL_CPPFLAGS) $< -o $@
+
+
+# Compile: create assembler files from C source files.
+%.s : %.c
+	$(CC) -S $(ALL_CFLAGS) $< -o $@
+
+
+# Compile: create assembler files from C++ source files.
+%.s : %.cpp
+	$(CC) -S $(ALL_CPPFLAGS) $< -o $@
+
+
+# Assemble: create object files from assembler source files.
+$(OBJDIR)/%.o : %.S
+	@echo
+	@echo $(MSG_ASSEMBLING) $<
+	$(CC) -c $(ALL_ASFLAGS) $< -o $@
+
+
+# Create preprocessed source for use in sending a bug report.
+%.i : %.c
+	$(CC) -E -mmcu=$(MCU) -I. $(CFLAGS) $< -o $@
+
+
+# Target: clean project.
+clean: begin clean_list end
+
+clean_list :
+	@echo
+	@echo $(MSG_CLEANING)
+	$(REMOVE) $(TARGET).hex
+	$(REMOVE) $(TARGET).eep
+	$(REMOVE) $(TARGET).cof
+	$(REMOVE) $(TARGET).elf
+	$(REMOVE) $(TARGET).map
+	$(REMOVE) $(TARGET).sym
+	$(REMOVE) $(TARGET).lss
+	$(REMOVE) $(SRC:%.c=$(OBJDIR)/%.o) $(CPPSRC:%.cpp=$(OBJDIR)/%.o) $(ASRC:%.S=$(OBJDIR)/%.o)
+	$(REMOVE) $(SRC:%.c=$(OBJDIR)/%.lst) $(CPPSRC:%.cpp=$(OBJDIR)/%.lst) $(ASRC:%.S=$(OBJDIR)/%.lst)
+	$(REMOVE) $(SRC:.c=.s)
+	$(REMOVE) $(SRC:.c=.d)
+	$(REMOVE) $(SRC:.c=.i)
+	$(REMOVEDIR) .dep
+
+doxygen:
+	@echo Generating Project Documentation...
+	@doxygen Doxygen.conf
+	@echo Documentation Generation Complete.
+
+clean_doxygen:
+	rm -rf Documentation
+
+# Create object files directory
+$(shell mkdir $(OBJDIR) 2>/dev/null)
+
+
+# Include the dependency files.
+-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)
+
+
+# Listing of phony targets.
+.PHONY : all begin finish end sizebefore sizeafter gccversion \
+build elf hex eep lss sym coff extcoff doxygen clean          \
+clean_list clean_doxygen program debug gdb-config
+
--- a/Bootloaders/makefile
+++ b/Bootloaders/makefile
@ -14,13 +14,17 @@
 # code.

 all:
-	$(MAKE) -C DFU clean
-	$(MAKE) -C DFU all
-
 	$(MAKE) -C CDC clean
 	$(MAKE) -C CDC all

+	$(MAKE) -C HID clean
+	$(MAKE) -C HID all
+
+	$(MAKE) -C DFU clean
+	$(MAKE) -C DFU all
+
 %:
-	$(MAKE) -C DFU $@
 	$(MAKE) -C CDC $@
+	$(MAKE) -C DFU $@
+	$(MAKE) -C HID $@

--- a/LUFA.pnproj
+++ b/LUFA.pnproj
--- a/LUFA/ManPages/ChangeLog.txt
+++ b/LUFA/ManPages/ChangeLog.txt
@ -25,6 +25,7 @@
  *   - Added ability to write protect Mass Storage disk write operations from the host OS
  *   - Added new MIDIToneGenerator project
  *   - Added new KeyboardMouseMultiReport Device ClassDriver demo
+  *   - Added HID class bootloader, compatible with a modified version of the command line Teensy loader from PJRC.com
  *
  *  <b>Changed:</b>
  *  - Core:
--- a/LUFA/ManPages/VIDAndPIDValues.txt
+++ b/LUFA/ManPages/VIDAndPIDValues.txt
@ -313,7 +313,7 @@
 *     0x2067
 *    </td>
 *    <td>
- *     <i>Currently Unallocated</i>
+ *     HID Class Bootloader
 *    </td>
 *   </tr>
 *