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
24 struct 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
33 struct 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 */
43
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