Linux kernel mirror (for testing)
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linux
1/*
2 * $Id: evbug.c,v 1.10 2001/09/25 10:12:07 vojtech Exp $
3 *
4 * Copyright (c) 1999-2001 Vojtech Pavlik
5 */
6
7/*
8 * Input driver event debug module - dumps all events into syslog
9 */
10
11/*
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 *
26 * Should you need to contact me, the author, you can do so either by
27 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
28 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
29 */
30
31#include <linux/slab.h>
32#include <linux/module.h>
33#include <linux/input.h>
34#include <linux/init.h>
35#include <linux/device.h>
36
37MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
38MODULE_DESCRIPTION("Input driver event debug module");
39MODULE_LICENSE("GPL");
40
41static char evbug_name[] = "evbug";
42
43static void evbug_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
44{
45 printk(KERN_DEBUG "evbug.c: Event. Dev: %s, Type: %d, Code: %d, Value: %d\n",
46 handle->dev->phys, type, code, value);
47}
48
49static struct input_handle *evbug_connect(struct input_handler *handler, struct input_dev *dev,
50 const struct input_device_id *id)
51{
52 struct input_handle *handle;
53
54 if (!(handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL)))
55 return NULL;
56
57 handle->dev = dev;
58 handle->handler = handler;
59 handle->name = evbug_name;
60
61 input_open_device(handle);
62
63 printk(KERN_DEBUG "evbug.c: Connected device: \"%s\", %s\n", dev->name, dev->phys);
64
65 return handle;
66}
67
68static void evbug_disconnect(struct input_handle *handle)
69{
70 printk(KERN_DEBUG "evbug.c: Disconnected device: %s\n", handle->dev->phys);
71
72 input_close_device(handle);
73
74 kfree(handle);
75}
76
77static const struct input_device_id evbug_ids[] = {
78 { .driver_info = 1 }, /* Matches all devices */
79 { }, /* Terminating zero entry */
80};
81
82MODULE_DEVICE_TABLE(input, evbug_ids);
83
84static struct input_handler evbug_handler = {
85 .event = evbug_event,
86 .connect = evbug_connect,
87 .disconnect = evbug_disconnect,
88 .name = "evbug",
89 .id_table = evbug_ids,
90};
91
92static int __init evbug_init(void)
93{
94 return input_register_handler(&evbug_handler);
95}
96
97static void __exit evbug_exit(void)
98{
99 input_unregister_handler(&evbug_handler);
100}
101
102module_init(evbug_init);
103module_exit(evbug_exit);