LXR linux/drivers/usb/gadget/function/u

   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
  18struct 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