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#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#define HIDIOCGRAWNAME(len) _IOC(_IOC_READ, 'H', 0x04, len)
37#define HIDIOCGRAWPHYS(len) _IOC(_IOC_READ, 'H', 0x05, len)
38/* The first byte of SFEATURE and GFEATURE is the report number */
39#define HIDIOCSFEATURE(len) _IOC(_IOC_WRITE|_IOC_READ, 'H', 0x06, len)
40#define HIDIOCGFEATURE(len) _IOC(_IOC_WRITE|_IOC_READ, 'H', 0x07, len)
41
42#define HIDRAW_FIRST_MINOR 0
43#define HIDRAW_MAX_DEVICES 64
44/* number of reports to buffer */
45#define HIDRAW_BUFFER_SIZE 64
46
47
48/* kernel-only API declarations */
49#ifdef __KERNEL__
50
51struct hidraw {
52 unsigned int minor;
53 int exist;
54 int open;
55 wait_queue_head_t wait;
56 struct hid_device *hid;
57 struct device *dev;
58 struct list_head list;
59};
60
61struct hidraw_report {
62 __u8 *value;
63 int len;
64};
65
66struct hidraw_list {
67 struct hidraw_report buffer[HIDRAW_BUFFER_SIZE];
68 int head;
69 int tail;
70 struct fasync_struct *fasync;
71 struct hidraw *hidraw;
72 struct list_head node;
73 struct mutex read_mutex;
74};
75
76#ifdef CONFIG_HIDRAW
77int hidraw_init(void);
78void hidraw_exit(void);
79int hidraw_report_event(struct hid_device *, u8 *, int);
80int hidraw_connect(struct hid_device *);
81void hidraw_disconnect(struct hid_device *);
82#else
83static inline int hidraw_init(void) { return 0; }
84static inline void hidraw_exit(void) { }
85static inline int hidraw_report_event(struct hid_device *hid, u8 *data, int len) { return 0; }
86static inline int hidraw_connect(struct hid_device *hid) { return -1; }
87static inline void hidraw_disconnect(struct hid_device *hid) { }
88#endif
89
90#endif
91
92#endif