| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|
| 2 | /* |
|---|
| 3 | * u_midi.h |
|---|
| 4 | * |
|---|
| 5 | * Utility definitions for the midi function |
|---|
| 6 | * |
|---|
| 7 | * Copyright (c) 2014 Samsung Electronics Co., Ltd. |
|---|
| 8 | * http://www.samsung.com |
|---|
| 9 | * |
|---|
| 10 | * Author: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com> |
|---|
| 11 | */ |
|---|
| 12 | |
|---|
| 13 | #ifndef U_MIDI_H |
|---|
| 14 | #define U_MIDI_H |
|---|
| 15 | |
|---|
| 16 | #include <linux/usb/composite.h> |
|---|
| 17 | |
|---|
| 18 | struct f_midi_opts { |
|---|
| 19 | struct usb_function_instance func_inst; |
|---|
| 20 | int index; |
|---|
| 21 | char *id; |
|---|
| 22 | bool id_allocated; |
|---|
| 23 | unsigned int in_ports; |
|---|
| 24 | unsigned int out_ports; |
|---|
| 25 | unsigned int buflen; |
|---|
| 26 | unsigned int qlen; |
|---|
| 27 | |
|---|
| 28 | /* |
|---|
| 29 | * Protect the data form concurrent access by read/write |
|---|
| 30 | * and create symlink/remove symlink. |
|---|
| 31 | */ |
|---|
| 32 | struct mutex lock; |
|---|
| 33 | int refcnt; |
|---|
| 34 | }; |
|---|
| 35 | |
|---|
| 36 | #endif /* U_MIDI_H */ |
|---|
| 37 | |
|---|
| 38 | |
|---|
