// 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 */