include/linux/usb/audio.h

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