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 <andrzejtp2010@gmail.com> 11 */ 12 13 #ifndef U_GETHER_H 14 #define U_GETHER_H 15 16 #include <linux/usb/composite.h> 17 18 /** 19 * struct f_gether_opts - subset function options 20 * @func_inst: USB function instance. 21 * @net: The net_device associated with the subset function. 22 * @bound: True if the net_device is shared and pre-registered during the 23 * legacy composite driver's bind phase (e.g., multi.c). If false, 24 * the subset function will register the net_device during its own 25 * bind phase. 26 * @bind_count: Tracks the number of configurations the subset function is 27 * bound to, preventing double-registration of the @net device. 28 * @lock: Protects the data from concurrent access by configfs read/write 29 * and create symlink/remove symlink operations. 30 * @refcnt: Reference counter for the function instance. 31 */ 32 struct f_gether_opts { 33 struct usb_function_instance func_inst; 34 struct net_device *net; 35 bool bound; 36 int bind_count; 37 struct mutex lock; 38 int refcnt; 39 }; 40 41 #endif /* U_GETHER_H */ 42