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diff --git a/lib/lufa/Demos/Device/LowLevel/AudioOutput/Descriptors.h b/lib/lufa/Demos/Device/LowLevel/AudioOutput/Descriptors.h
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--- a/lib/lufa/Demos/Device/LowLevel/AudioOutput/Descriptors.h
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@@ -1,106 +0,0 @@
-/*
- LUFA Library
- Copyright (C) Dean Camera, 2017.
-
- dean [at] fourwalledcubicle [dot] com
- www.lufa-lib.org
-*/
-
-/*
- Copyright 2017 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 disclaims all warranties with regard to this
- software, including all implied warranties of merchantability
- and fitness. In no event shall the author be liable for any
- special, 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>
-
- #include <avr/pgmspace.h>
-
- #include "Config/AppConfig.h"
-
- /* Macros: */
- /** Endpoint address of the Audio isochronous streaming data OUT endpoint. */
- #define AUDIO_STREAM_EPADDR (ENDPOINT_DIR_OUT | 1)
-
- /** Endpoint size in bytes of the Audio isochronous streaming data endpoint. */
- #define AUDIO_STREAM_EPSIZE 256
-
- /* 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;
-
- // Audio Control Interface
- USB_Descriptor_Interface_t Audio_ControlInterface;
- USB_Audio_Descriptor_Interface_AC_t Audio_ControlInterface_SPC;
- USB_Audio_Descriptor_InputTerminal_t Audio_InputTerminal;
- USB_Audio_Descriptor_OutputTerminal_t Audio_OutputTerminal;
-
- // Audio Streaming Interface
- USB_Descriptor_Interface_t Audio_StreamInterface_Alt0;
- USB_Descriptor_Interface_t Audio_StreamInterface_Alt1;
- USB_Audio_Descriptor_Interface_AS_t Audio_StreamInterface_SPC;
- USB_Audio_Descriptor_Format_t Audio_AudioFormat;
- USB_Audio_SampleFreq_t Audio_AudioFormatSampleRates[5];
- USB_Audio_Descriptor_StreamEndpoint_Std_t Audio_StreamEndpoint;
- USB_Audio_Descriptor_StreamEndpoint_Spc_t Audio_StreamEndpoint_SPC;
- } USB_Descriptor_Configuration_t;
-
- /** Enum for the device interface descriptor IDs within the device. Each interface descriptor
- * should have a unique ID index associated with it, which can be used to refer to the
- * interface from other descriptors.
- */
- enum InterfaceDescriptors_t
- {
- INTERFACE_ID_AudioControl = 0, /**< Audio control interface descriptor ID */
- INTERFACE_ID_AudioStream = 1, /**< Audio stream interface descriptor ID */
- };
-
- /** Enum for the device string descriptor IDs within the device. Each string descriptor should
- * have a unique ID index associated with it, which can be used to refer to the string from
- * other descriptors.
- */
- enum StringDescriptors_t
- {
- STRING_ID_Language = 0, /**< Supported Languages string descriptor ID (must be zero) */
- STRING_ID_Manufacturer = 1, /**< Manufacturer string ID */
- STRING_ID_Product = 2, /**< Product string ID */
- };
-
- /* Function Prototypes: */
- uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
- const uint16_t wIndex,
- const void** const DescriptorAddress)
- ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(3);
-
-#endif
-