drivers/usb/gadget/function/u_gether.h

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * u_gether.h
   4  *
   5  * Utility definitions for the subset function
   6  *
   7  * Copyright (c) 2013 Samsung Electronics Co., Ltd.
   8  *              http://www.samsung.com
   9  *
  10  * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License version 2 as
  14  * published by the Free Software Foundation.
  15  */
  16
  17 #ifndef U_GETHER_H
  18 #define U_GETHER_H
  19
  20 #include <linux/usb/composite.h>
  21
  22 struct f_gether_opts {
  23         struct usb_function_instance    func_inst;
  24         struct net_device               *net;
  25         bool                            bound;
  26
  27         /*
  28          * Read/write access to configfs attributes is handled by configfs.
  29          *
  30          * This is to protect the data from concurrent access by read/write
  31          * and create symlink/remove symlink.
  32          */
  33         struct mutex                    lock;
  34         int                             refcnt;
  35 };
  36
  37 #endif /* U_GETHER_H */