Linux kernel mirror (for testing)
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linux
1#ifndef _HIDRAW_H
2#define _HIDRAW_H
3
4/*
5 * Copyright (c) 2007 Jiri Kosina
6 */
7
8/*
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms and conditions of the GNU General Public License,
11 * version 2, as published by the Free Software Foundation.
12 *
13 * You should have received a copy of the GNU General Public License along with
14 * this program; if not, write to the Free Software Foundation, Inc.,
15 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
16 */
17
18#include <linux/hid.h>
19#include <linux/types.h>
20
21struct hidraw_report_descriptor {
22 __u32 size;
23 __u8 value[HID_MAX_DESCRIPTOR_SIZE];
24};
25
26struct hidraw_devinfo {
27 __u32 bustype;
28 __s16 vendor;
29 __s16 product;
30};
31
32/* ioctl interface */
33#define HIDIOCGRDESCSIZE _IOR('H', 0x01, int)
34#define HIDIOCGRDESC _IOR('H', 0x02, struct hidraw_report_descriptor)
35#define HIDIOCGRAWINFO _IOR('H', 0x03, struct hidraw_devinfo)
36
37#define HIDRAW_FIRST_MINOR 0
38#define HIDRAW_MAX_DEVICES 64
39/* number of reports to buffer */
40#define HIDRAW_BUFFER_SIZE 64
41
42
43/* kernel-only API declarations */
44#ifdef __KERNEL__
45
46struct hidraw {
47 unsigned int minor;
48 int exist;
49 int open;
50 wait_queue_head_t wait;
51 struct hid_device *hid;
52 struct device *dev;
53 struct list_head list;
54};
55
56struct hidraw_report {
57 __u8 *value;
58 int len;
59};
60
61struct hidraw_list {
62 struct hidraw_report buffer[HIDRAW_BUFFER_SIZE];
63 int head;
64 int tail;
65 struct fasync_struct *fasync;
66 struct hidraw *hidraw;
67 struct list_head node;
68 struct mutex read_mutex;
69};
70
71#ifdef CONFIG_HIDRAW
72int hidraw_init(void);
73void hidraw_exit(void);
74void hidraw_report_event(struct hid_device *, u8 *, int);
75int hidraw_connect(struct hid_device *);
76void hidraw_disconnect(struct hid_device *);
77#else
78static inline int hidraw_init(void) { return 0; }
79static inline void hidraw_exit(void) { }
80static inline void hidraw_report_event(struct hid_device *hid, u8 *data, int len) { }
81static inline int hidraw_connect(struct hid_device *hid) { return -1; }
82static inline void hidraw_disconnect(struct hid_device *hid) { }
83#endif
84
85#endif
86
87#endif