| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * u_midi.h |
| * |
| * Utility definitions for the midi function |
| * |
| * Copyright (c) 2014 Samsung Electronics Co., Ltd. |
| * http://www.samsung.com |
| * |
| * Author: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com> |
| */ |
| |
| #ifndef U_MIDI_H |
| #define U_MIDI_H |
| |
| #include <linux/usb/composite.h> |
| |
| struct f_midi_opts { |
| struct usb_function_instance func_inst; |
| int index; |
| char *id; |
| bool id_allocated; |
| unsigned int in_ports; |
| unsigned int out_ports; |
| unsigned int buflen; |
| unsigned int qlen; |
| |
| /* |
| * Protect the data form concurrent access by read/write |
| * and create symlink/remove symlink. |
| */ |
| struct mutex lock; |
| int refcnt; |
| }; |
| |
| #endif /* U_MIDI_H */ |
| |
