1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * u_hid.h
4  *
5  * Utility definitions for the hid function
6  *
7  * Copyright (c) 2014 Samsung Electronics Co., Ltd.
8  *		http://www.samsung.com
9  *
10  * Author: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
11  */
12 
13 #ifndef U_HID_H
14 #define U_HID_H
15 
16 #include <linux/usb/composite.h>
17 
18 struct f_hid_opts {
19 	struct usb_function_instance	func_inst;
20 	int				minor;
21 	unsigned char			subclass;
22 	unsigned char			protocol;
23 	unsigned char			no_out_endpoint;
24 	unsigned short			report_length;
25 	unsigned short			report_desc_length;
26 	unsigned char			*report_desc;
27 	bool				report_desc_alloc;
28 
29 	/*
30 	 * Protect the data form concurrent access by read/write
31 	 * and create symlink/remove symlink.
32 	 */
33 	struct mutex			lock;
34 	int				refcnt;
35 };
36 
37 int ghid_setup(struct usb_gadget *g, int count);
38 void ghid_cleanup(void);
39 
40 #endif /* U_HID_H */
41