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								/*
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								             LUFA Library
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								     Copyright (C) Dean Camera, 2017.
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								  dean [at] fourwalledcubicle [dot] com
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								           www.lufa-lib.org
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								*/
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								/*
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								  Copyright 2017  Dean Camera (dean [at] fourwalledcubicle [dot] com)
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								  Permission to use, copy, modify, distribute, and sell this
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								  software and its documentation for any purpose is hereby granted
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								  without fee, provided that the above copyright notice appear in
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								  all copies and that both that the copyright notice and this
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								  permission notice and warranty disclaimer appear in supporting
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								  documentation, and that the name of the author not be used in
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								  advertising or publicity pertaining to distribution of the
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								  software without specific, written prior permission.
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								  The author disclaims all warranties with regard to this
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								  software, including all implied warranties of merchantability
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								  and fitness.  In no event shall the author be liable for any
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								  special, indirect or consequential damages or any damages
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								  whatsoever resulting from loss of use, data or profits, whether
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								  in an action of contract, negligence or other tortious action,
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								  arising out of or in connection with the use or performance of
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								  this software.
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								*/
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								/** \file
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								 *
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								 *  Header file for Descriptors.c.
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								 */
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								#ifndef _DESCRIPTORS_H_
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								#define _DESCRIPTORS_H_
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									/* Includes: */
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										#include <LUFA/Drivers/USB/USB.h>
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										#include "Config/AppConfig.h"
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									/* Macros: */
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										/** Descriptor type value for a DFU class functional descriptor. */
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										#define DTYPE_DFUFunctional               0x21
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										/** DFU attribute mask, indicating that the DFU device will detach and re-attach when a DFU_DETACH
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										 *  command is issued, rather than the host issuing a USB Reset.
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										 */
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										#define ATTR_WILL_DETATCH                 (1 << 3)
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										/** DFU attribute mask, indicating that the DFU device can communicate during the manifestation phase
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										 *  (memory programming phase).
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										 */
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										#define ATTR_MANEFESTATION_TOLLERANT      (1 << 2)
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										/** DFU attribute mask, indicating that the DFU device can accept DFU_UPLOAD requests to send data from
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										 *  the device to the host.
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										 */
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										#define ATTR_CAN_UPLOAD                   (1 << 1)
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										/** DFU attribute mask, indicating that the DFU device can accept DFU_DNLOAD requests to send data from
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										 *  the host to the device.
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										 */
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										#define ATTR_CAN_DOWNLOAD                 (1 << 0)
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										#if defined(__AVR_AT90USB1287__)
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											#define PRODUCT_ID_CODE               0x2FFB
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											#define AVR_SIGNATURE_1               0x1E
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											#define AVR_SIGNATURE_2               0x97
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											#define AVR_SIGNATURE_3               0x82
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										#elif defined(__AVR_AT90USB647__)
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											#define PRODUCT_ID_CODE               0x2FF9
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											#define AVR_SIGNATURE_1               0x1E
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											#define AVR_SIGNATURE_2               0x96
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											#define AVR_SIGNATURE_3               0x82
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										#elif defined(__AVR_AT90USB1286__)
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											#define PRODUCT_ID_CODE               0x2FFB
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											#define AVR_SIGNATURE_1               0x1E
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											#define AVR_SIGNATURE_2               0x97
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											#define AVR_SIGNATURE_3               0x82
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										#elif defined(__AVR_AT90USB646__)
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											#define PRODUCT_ID_CODE               0x2FF9
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											#define AVR_SIGNATURE_1               0x1E
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											#define AVR_SIGNATURE_2               0x96
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											#define AVR_SIGNATURE_3               0x82
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										#elif defined(__AVR_ATmega32U4__)
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											#define PRODUCT_ID_CODE               0x2FF4
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											#define AVR_SIGNATURE_1               0x1E
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											#define AVR_SIGNATURE_2               0x95
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											#define AVR_SIGNATURE_3               0x87
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										#elif defined(__AVR_ATmega16U4__)
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											#define PRODUCT_ID_CODE               0x2FF3
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											#define AVR_SIGNATURE_1               0x1E
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											#define AVR_SIGNATURE_2               0x94
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											#define AVR_SIGNATURE_3               0x88
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										#elif defined(__AVR_ATmega32U2__)
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											#define PRODUCT_ID_CODE               0x2FF0
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											#define AVR_SIGNATURE_1               0x1E
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											#define AVR_SIGNATURE_2               0x95
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											#define AVR_SIGNATURE_3               0x8A
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										#elif defined(__AVR_ATmega16U2__)
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											#define PRODUCT_ID_CODE               0x2FEF
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											#define AVR_SIGNATURE_1               0x1E
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											#define AVR_SIGNATURE_2               0x94
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											#define AVR_SIGNATURE_3               0x89
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										#elif defined(__AVR_AT90USB162__)
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											#define PRODUCT_ID_CODE               0x2FFA
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											#define AVR_SIGNATURE_1               0x1E
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											#define AVR_SIGNATURE_2               0x94
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											#define AVR_SIGNATURE_3               0x82
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										#elif defined(__AVR_ATmega8U2__)
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											#define PRODUCT_ID_CODE               0x2FEE
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											#define AVR_SIGNATURE_1               0x1E
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											#define AVR_SIGNATURE_2               0x93
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											#define AVR_SIGNATURE_3               0x89
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										#elif defined(__AVR_AT90USB82__)
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											#define PRODUCT_ID_CODE               0x2FF7
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											#define AVR_SIGNATURE_1               0x1E
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											#define AVR_SIGNATURE_2               0x93
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											#define AVR_SIGNATURE_3               0x82
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										#else
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											#error The selected AVR part is not currently supported by this bootloader.
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										#endif
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										#if !defined(PRODUCT_ID_CODE)
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											#error Current AVR model is not supported by this bootloader.
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										#endif
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									/* Type Defines: */
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										/** Type define for a DFU class function descriptor. This descriptor gives DFU class information
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										 *  to the host when read, indicating the DFU device's capabilities.
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										 */
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										typedef struct
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										{
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											USB_Descriptor_Header_t Header; /**< Standard descriptor header structure */
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											uint8_t                 Attributes; /**< DFU device attributes, a mask comprising of the
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											                                     *  ATTR_* macros listed in this source file
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											                                     */
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											uint16_t                DetachTimeout; /**< Timeout in milliseconds between a USB_DETACH
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											                                        *  command being issued and the device detaching
							 | 
						
					
						
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							 | 
							
								
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											                                        *  from the USB bus
							 | 
						
					
						
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											                                        */
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											uint16_t                TransferSize; /**< Maximum number of bytes the DFU device can accept
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											                                       *  from the host in a transaction
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											                                       */
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											uint16_t                DFUSpecification; /**< BCD packed DFU specification number this DFU
							 | 
						
					
						
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							 | 
							
								
							 | 
							
								
							 | 
							
							
											                                           *  device complies with
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											                                           */
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										} USB_Descriptor_DFU_Functional_t;
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										/** Type define for the device configuration descriptor structure. This must be defined in the
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										 *  application code, as the configuration descriptor contains several sub-descriptors which
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										 *  vary between devices, and which describe the device's usage to the host.
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										 */
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										typedef struct
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										{
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											USB_Descriptor_Configuration_Header_t Config;
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											// DFU Interface
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											USB_Descriptor_Interface_t            DFU_Interface;
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											USB_Descriptor_DFU_Functional_t       DFU_Functional;
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										} USB_Descriptor_Configuration_t;
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										/** Enum for the device interface descriptor IDs within the device. Each interface descriptor
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										 *  should have a unique ID index associated with it, which can be used to refer to the
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										 *  interface from other descriptors.
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										 */
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										enum InterfaceDescriptors_t
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										{
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											INTERFACE_ID_DFU = 0, /**< DFU interface descriptor ID */
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										};
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										/** Enum for the device string descriptor IDs within the device. Each string descriptor should
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										 *  have a unique ID index associated with it, which can be used to refer to the string from
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										 *  other descriptors.
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										 */
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										enum StringDescriptors_t
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										{
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											STRING_ID_Language     = 0, /**< Supported Languages string descriptor ID (must be zero) */
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											STRING_ID_Manufacturer = 1, /**< Manufacturer string ID */
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											STRING_ID_Product      = 2, /**< Product string ID */
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										};
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									/* Function Prototypes: */
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										uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
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										                                    const uint16_t wIndex,
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										                                    const void** const DescriptorAddress)
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										                                    ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(3);
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										// convert to L string
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										#define LSTR(s) XLSTR(s)
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										#define XLSTR(s) L ## #s
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										// convert to string
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										#define STR(s) XSTR(s)
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										#define XSTR(s) #s
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								#endif
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