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

   1/*
   2 * u_midi.h
   3 *
   4 * Utility definitions for the midi function
   5 *
   6 * Copyright (c) 2014 Samsung Electronics Co., Ltd.
   7 *              http://www.samsung.com
   8 *
   9 * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
  10 *
  11 * This program is free software; you can redistribute it and/or modify
  12 * it under the terms of the GNU General Public License version 2 as
  13 * published by the Free Software Foundation.
  14 */
  15
  16#ifndef U_MIDI_H
  17#define U_MIDI_H
  18
  19#include <linux/usb/composite.h>
  20
  21struct f_midi_opts {
  22        struct usb_function_instance    func_inst;
  23        int                             index;
  24        char                            *id;
  25        bool                            id_allocated;
  26        unsigned int                    in_ports;
  27        unsigned int                    out_ports;
  28        unsigned int                    buflen;
  29        unsigned int                    qlen;
  30
  31        /*
  32         * Protect the data form concurrent access by read/write
  33         * and create symlink/remove symlink.
  34         */
  35         struct mutex                   lock;
  36         int                            refcnt;
  37};
  38
  39#endif /* U_MIDI_H */
  40
  41