audio.h

 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 file holds USB constants and structures defined
10 * by the USB Device Class Definition for Audio Devices.
11 * Comments below reference relevant sections of that document:
12 *
13 * http://www.usb.org/developers/devclass_docs/audio10.pdf
14 *
15 * Types and defines in this file are either specific to version 1.0 of
16 * this standard or common for newer versions.
17 */
18#ifndef __LINUX_USB_AUDIO_H
19#define __LINUX_USB_AUDIO_H
20
21#include <uapi/linux/usb/audio.h>
22
23
24struct usb_audio_control {
25	struct list_head list;
26	const char *name;
27	u8 type;
28	int data[5];
29	int (*set)(struct usb_audio_control *con, u8 cmd, int value);
30	int (*get)(struct usb_audio_control *con, u8 cmd);
31};
32
33struct usb_audio_control_selector {
34	struct list_head list;
35	struct list_head control;
36	u8 id;
37	const char *name;
38	u8 type;
39	struct usb_descriptor_header *desc;
40};
41
42#endif /* __LINUX_USB_AUDIO_H */