Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
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
20struct hidraw_report_descriptor {
21 __u32 size;
22 __u8 value[HID_MAX_DESCRIPTOR_SIZE];
23};
24
25struct hidraw_devinfo {
26 __u32 bustype;
27 __s16 vendor;
28 __s16 product;
29};
30
31/* ioctl interface */
32#define HIDIOCGRDESCSIZE _IOR('H', 0x01, int)
33#define HIDIOCGRDESC _IOR('H', 0x02, struct hidraw_report_descriptor)
34#define HIDIOCGRAWINFO _IOR('H', 0x03, struct hidraw_devinfo)
35
36#define HIDRAW_FIRST_MINOR 0
37#define HIDRAW_MAX_DEVICES 64
38/* number of reports to buffer */
39#define HIDRAW_BUFFER_SIZE 64
40
41
42/* kernel-only API declarations */
43#ifdef __KERNEL__
44
45struct hidraw {
46 unsigned int minor;
47 int exist;
48 int open;
49 wait_queue_head_t wait;
50 struct hid_device *hid;
51 struct device *dev;
52 struct list_head list;
53};
54
55struct hidraw_report {
56 __u8 *value;
57 int len;
58};
59
60struct hidraw_list {
61 struct hidraw_report buffer[HIDRAW_BUFFER_SIZE];
62 int head;
63 int tail;
64 struct fasync_struct *fasync;
65 struct hidraw *hidraw;
66 struct list_head node;
67 struct mutex read_mutex;
68};
69
70#ifdef CONFIG_HIDRAW
71int hidraw_init(void);
72void hidraw_exit(void);
73void hidraw_report_event(struct hid_device *, u8 *, int);
74int hidraw_connect(struct hid_device *);
75void hidraw_disconnect(struct hid_device *);
76#else
77static inline int hidraw_init(void) { return 0; }
78static inline void hidraw_exit(void) { }
79static inline void hidraw_report_event(struct hid_device *hid, u8 *data, int len) { }
80static inline int hidraw_connect(struct hid_device *hid) { return -1; }
81static inline void hidraw_disconnect(struct hid_device *hid) { }
82#endif
83
84#endif
85
86#endif