| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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 */ |