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diff --git a/LUFA/Drivers/USB/HighLevel/USBMode.h b/LUFA/Drivers/USB/HighLevel/USBMode.h
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+++ b/LUFA/Drivers/USB/HighLevel/USBMode.h
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+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2010.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2010  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
+ *  \brief USB mode and capability macros.
+ *
+ *  This file defines macros indicating the type of USB controller the library is being compiled for, and its
+ *  capabilities. These macros may then be referenced in the user application to selectively enable or disable
+ *  code sections depending on if they are defined or not.
+ *
+ *  \note This file should not be included directly. It is automatically included as needed by the USB driver
+ *        dispatch header located in LUFA/Drivers/USB/USB.h.
+ */
+
+/** \ingroup Group_USB
+ *  @defgroup Group_USBMode USB Mode Tokens
+ *
+ *  After the inclusion of the master USB driver header, one or more of the following
+ *  tokens may be defined, to allow the user code to conditionally enable or disable
+ *  code based on the USB controller family and allowable USB modes. These tokens may
+ *  be tested against to eliminate code relating to a USB mode which is not enabled for
+ *  the given compilation.
+ *
+ *  @{
+ */
+
+#ifndef __USBMODE_H__
+#define __USBMODE_H__
+
+	/* Preprocessor Checks: */
+		#if !defined(__INCLUDE_FROM_USB_DRIVER)
+			#error Do not include this file directly. Include LUFA/Drivers/USB/USB.h instead.
+		#endif
+
+	/* Public Interface - May be used in end-application: */
+	#if defined(__DOXYGEN__)
+		/** Indicates that the target AVR microcontroller belongs to the Series 2 USB controller
+		 *  (i.e. AT90USBxxx2 or ATMEGAxxU2) when defined.
+		 */
+		#define USB_SERIES_2_AVR
+
+		/** Indicates that the target AVR microcontroller belongs to the Series 4 USB controller
+		 *  (i.e. ATMEGAxxU4) when defined.
+		 */
+		#define USB_SERIES_4_AVR
+
+		/** Indicates that the target AVR microcontroller belongs to the Series 6 USB controller
+		 *  (i.e. AT90USBxxx6) when defined.
+		 */
+		#define USB_SERIES_6_AVR
+
+		/** Indicates that the target AVR microcontroller belongs to the Series 7 USB controller
+		 *  (i.e. AT90USBxxx7) when defined.
+		 */
+		#define USB_SERIES_7_AVR
+
+		/** Indicates that the target AVR microcontroller and compilation settings allow for the
+		 *  target to be configured in USB Device mode when defined.
+		 */
+		#define USB_CAN_BE_DEVICE
+
+		/** Indicates that the target AVR microcontroller and compilation settings allow for the
+		 *  target to be configured in USB Host mode when defined.
+		 */
+		#define USB_CAN_BE_HOST
+
+		/** Indicates that the target AVR microcontroller and compilation settings allow for the
+		 *  target to be configured in either USB Device or Host mode when defined.
+		 */
+		#define USB_CAN_BE_BOTH
+	#else
+		/* Macros: */
+			#if (defined(__AVR_AT90USB162__) || defined(__AVR_AT90USB82__)  || \
+			     defined(__AVR_ATmega32U2__) || defined(__AVR_ATmega16U2__) || defined(__AVR_ATmega8U2__))
+				#define USB_SERIES_2_AVR
+			#elif (defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega16U4__))
+				#define USB_SERIES_4_AVR
+			#elif (defined(__AVR_ATmega32U6__) || defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__))
+				#define USB_SERIES_6_AVR
+			#elif (defined(__AVR_AT90USB647__) || defined(__AVR_AT90USB1287__))
+				#define USB_SERIES_7_AVR
+			#endif
+
+			#if !defined(USB_SERIES_7_AVR)
+				#if defined(USB_HOST_ONLY)
+					#error USB_HOST_ONLY is not available for the currently selected USB AVR model.
+				#endif
+
+				#if !defined(USB_DEVICE_ONLY)
+					#define USB_DEVICE_ONLY
+				#endif
+			#endif
+
+			#if (!defined(USB_DEVICE_ONLY) && !defined(USB_HOST_ONLY))
+				#define USB_CAN_BE_BOTH
+				#define USB_CAN_BE_HOST
+				#define USB_CAN_BE_DEVICE
+			#elif defined(USB_HOST_ONLY)
+				#define USB_CAN_BE_HOST
+			#elif defined(USB_DEVICE_ONLY)
+				#define USB_CAN_BE_DEVICE
+			#endif
+
+			#if (defined(USB_HOST_ONLY) && defined(USB_DEVICE_ONLY))
+				#error USB_HOST_ONLY and USB_DEVICE_ONLY are mutually exclusive.
+			#endif
+	#endif
+
+#endif
+
+/** @} */