1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * u_ecm.h 4 * 5 * Utility definitions for the ecm 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_ECM_H 18 #define U_ECM_H 19 20 #include <linux/usb/composite.h> 21 22 struct f_ecm_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_ECM_H */ 38