| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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 | |