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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 |