1 /* 2 * u_hid.h 3 * 4 * Utility definitions for the hid 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_HID_H 17 #define U_HID_H 18 19 #include <linux/usb/composite.h> 20 21 struct f_hid_opts { 22 struct usb_function_instance func_inst; 23 int minor; 24 unsigned char subclass; 25 unsigned char protocol; 26 unsigned short report_length; 27 unsigned short report_desc_length; 28 unsigned char *report_desc; 29 bool report_desc_alloc; 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 int ghid_setup(struct usb_gadget *g, int count); 40 void ghid_cleanup(void); 41 42 #endif /* U_HID_H */ 43