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1c93738177
When using f_midi from configfs the USB MIDI interface string is hardcoded to 'MIDI function'. This USB string descriptor is used by some third-party OS or software to display the name of the MIDI device Since we add an additional string option a new macro block was created to factorize declarations Signed-off-by: Victor Krawiec <victor.krawiec@arturia.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Link: https://patch.msgid.link/20251209164006.143219-1-victor.krawiec@arturia.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
37 lines
710 B
C
37 lines
710 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* u_midi.h
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*
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* Utility definitions for the midi function
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*
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* Copyright (c) 2014 Samsung Electronics Co., Ltd.
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* http://www.samsung.com
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*
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* Author: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
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*/
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#ifndef U_MIDI_H
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#define U_MIDI_H
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#include <linux/usb/composite.h>
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struct f_midi_opts {
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struct usb_function_instance func_inst;
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int index;
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char *id;
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char *interface_string;
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unsigned int in_ports;
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unsigned int out_ports;
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unsigned int buflen;
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unsigned int qlen;
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/*
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* Protect the data form concurrent access by read/write
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* and create symlink/remove symlink.
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*/
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struct mutex lock;
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int refcnt;
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};
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#endif /* U_MIDI_H */
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