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TOMOYO Linux Cross Reference
Linux/include/linux/usb/audio.h

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  1 // SPDX-License-Identifier: GPL-2.0
  2 /*
  3  * <linux/usb/audio.h> -- USB Audio definitions.
  4  *
  5  * Copyright (C) 2006 Thumtronics Pty Ltd.
  6  * Developed for Thumtronics by Grey Innovation
  7  * Ben Williamson <ben.williamson@greyinnovation.com>
  8  *
  9  * This software is distributed under the terms of the GNU General Public
 10  * License ("GPL") version 2, as published by the Free Software Foundation.
 11  *
 12  * This file holds USB constants and structures defined
 13  * by the USB Device Class Definition for Audio Devices.
 14  * Comments below reference relevant sections of that document:
 15  *
 16  * http://www.usb.org/developers/devclass_docs/audio10.pdf
 17  *
 18  * Types and defines in this file are either specific to version 1.0 of
 19  * this standard or common for newer versions.
 20  */
 21 #ifndef __LINUX_USB_AUDIO_H
 22 #define __LINUX_USB_AUDIO_H
 23 
 24 #include <uapi/linux/usb/audio.h>
 25 
 26 
 27 struct usb_audio_control {
 28         struct list_head list;
 29         const char *name;
 30         u8 type;
 31         int data[5];
 32         int (*set)(struct usb_audio_control *con, u8 cmd, int value);
 33         int (*get)(struct usb_audio_control *con, u8 cmd);
 34 };
 35 
 36 struct usb_audio_control_selector {
 37         struct list_head list;
 38         struct list_head control;
 39         u8 id;
 40         const char *name;
 41         u8 type;
 42         struct usb_descriptor_header *desc;
 43 };
 44 
 45 #endif /* __LINUX_USB_AUDIO_H */
 46 

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