LXR linux/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
  26struct 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
  35struct 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 */
  45