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
11struct 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
22struct hidraw_report {
23 __u8 *value;
24 int len;
25};
26
27struct 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 bool revoked;
36};
37
38#ifdef CONFIG_HIDRAW
39int hidraw_init(void);
40void hidraw_exit(void);
41int hidraw_report_event(struct hid_device *, u8 *, int);
42int hidraw_connect(struct hid_device *);
43void hidraw_disconnect(struct hid_device *);
44#else
45static inline int hidraw_init(void) { return 0; }
46static inline void hidraw_exit(void) { }
47static inline int hidraw_report_event(struct hid_device *hid, u8 *data, int len) { return 0; }
48static inline int hidraw_connect(struct hid_device *hid) { return -1; }
49static inline void hidraw_disconnect(struct hid_device *hid) { }
50#endif
51
52#endif
53