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 | |