1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* |
3 | * Copyright (c) 2007 Jiri Kosina |
4 | */ |
5 | #ifndef _HIDRAW_H |
6 | #define _HIDRAW_H |
7 | |
8 | #include <uapi/linux/hidraw.h> |
9 | |
10 | |
11 | struct hidraw { |
12 | unsigned int minor; |
13 | int exist; |
14 | int open; |
15 | wait_queue_head_t wait; |
16 | struct hid_device *hid; |
17 | struct device *dev; |
18 | spinlock_t list_lock; |
19 | struct list_head list; |
20 | }; |
21 | |
22 | struct hidraw_report { |
23 | __u8 *value; |
24 | int len; |
25 | }; |
26 | |
27 | struct hidraw_list { |
28 | struct hidraw_report buffer[HIDRAW_BUFFER_SIZE]; |
29 | int head; |
30 | int tail; |
31 | struct fasync_struct *fasync; |
32 | struct hidraw *hidraw; |
33 | struct list_head node; |
34 | struct mutex read_mutex; |
35 | }; |
36 | |
37 | #ifdef CONFIG_HIDRAW |
38 | int hidraw_init(void); |
39 | void hidraw_exit(void); |
40 | int hidraw_report_event(struct hid_device *, u8 *, int); |
41 | int hidraw_connect(struct hid_device *); |
42 | void hidraw_disconnect(struct hid_device *); |
43 | #else |
44 | static inline int hidraw_init(void) { return 0; } |
45 | static inline void hidraw_exit(void) { } |
46 | static inline int hidraw_report_event(struct hid_device *hid, u8 *data, int len) { return 0; } |
47 | static inline int hidraw_connect(struct hid_device *hid) { return -1; } |
48 | static inline void hidraw_disconnect(struct hid_device *hid) { } |
49 | #endif |
50 | |
51 | #endif |
52 | |