46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* <linux/usb/audio.h> -- USB Audio definitions.
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*
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* Copyright (C) 2006 Thumtronics Pty Ltd.
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* Developed for Thumtronics by Grey Innovation
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* Ben Williamson <ben.williamson@greyinnovation.com>
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*
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* This software is distributed under the terms of the GNU General Public
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* License ("GPL") version 2, as published by the Free Software Foundation.
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*
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* This file holds USB constants and structures defined
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* by the USB Device Class Definition for Audio Devices.
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* Comments below reference relevant sections of that document:
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*
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* http://www.usb.org/developers/devclass_docs/audio10.pdf
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*
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* Types and defines in this file are either specific to version 1.0 of
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* this standard or common for newer versions.
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*/
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#ifndef __LINUX_USB_AUDIO_H
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#define __LINUX_USB_AUDIO_H
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#include <uapi/linux/usb/audio.h>
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struct usb_audio_control {
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struct list_head list;
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const char *name;
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u8 type;
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int data[5];
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int (*set)(struct usb_audio_control *con, u8 cmd, int value);
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int (*get)(struct usb_audio_control *con, u8 cmd);
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};
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struct usb_audio_control_selector {
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struct list_head list;
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struct list_head control;
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u8 id;
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const char *name;
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u8 type;
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struct usb_descriptor_header *desc;
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};
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#endif /* __LINUX_USB_AUDIO_H */
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