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
20 struct hidraw_report_descriptor {
21 __u32 size;
22 __u8 value[HID_MAX_DESCRIPTOR_SIZE];
23 };
24
25 struct 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
45 struct 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
55 struct hidraw_report {
56 __u8 *value;
57 int len;
58 };
59
60 struct 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
71 int hidraw_init(void);
72 void hidraw_exit(void);
73 void hidraw_report_event(struct hid_device *, u8 *, int);
74 int hidraw_connect(struct hid_device *);
75 void hidraw_disconnect(struct hid_device *);
76 #else
77 static inline int hidraw_init(void) { return 0; }
78 static inline void hidraw_exit(void) { }
79 static inline void hidraw_report_event(struct hid_device *hid, u8 *data, int len) { }
80 static inline int hidraw_connect(struct hid_device *hid) { return -1; }
81 static inline void hidraw_disconnect(struct hid_device *hid) { }
82 #endif
83
84 #endif
85
86 #endif
87
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