Commit | Line | Data |
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1da177e4 | 1 | /* |
1da177e4 LT |
2 | * Copyright (c) 1999-2001 Vojtech Pavlik |
3 | */ | |
4 | ||
5 | /* | |
6 | * Input driver event debug module - dumps all events into syslog | |
7 | */ | |
8 | ||
9 | /* | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
23 | * | |
24 | * Should you need to contact me, the author, you can do so either by | |
25 | * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: | |
26 | * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic | |
27 | */ | |
28 | ||
29 | #include <linux/slab.h> | |
30 | #include <linux/module.h> | |
31 | #include <linux/input.h> | |
32 | #include <linux/init.h> | |
33 | #include <linux/device.h> | |
34 | ||
35 | MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); | |
36 | MODULE_DESCRIPTION("Input driver event debug module"); | |
37 | MODULE_LICENSE("GPL"); | |
38 | ||
1da177e4 LT |
39 | static void evbug_event(struct input_handle *handle, unsigned int type, unsigned int code, int value) |
40 | { | |
66e66118 | 41 | printk(KERN_DEBUG "evbug.c: Event. Dev: %s, Type: %d, Code: %d, Value: %d\n", |
a6c2490f | 42 | dev_name(&handle->dev->dev), type, code, value); |
1da177e4 LT |
43 | } |
44 | ||
5b2a0826 DT |
45 | static int evbug_connect(struct input_handler *handler, struct input_dev *dev, |
46 | const struct input_device_id *id) | |
1da177e4 LT |
47 | { |
48 | struct input_handle *handle; | |
5b2a0826 | 49 | int error; |
1da177e4 | 50 | |
5b2a0826 DT |
51 | handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL); |
52 | if (!handle) | |
53 | return -ENOMEM; | |
1da177e4 LT |
54 | |
55 | handle->dev = dev; | |
56 | handle->handler = handler; | |
5b2a0826 DT |
57 | handle->name = "evbug"; |
58 | ||
59 | error = input_register_handle(handle); | |
60 | if (error) | |
61 | goto err_free_handle; | |
1da177e4 | 62 | |
5b2a0826 DT |
63 | error = input_open_device(handle); |
64 | if (error) | |
65 | goto err_unregister_handle; | |
1da177e4 | 66 | |
81956128 | 67 | printk(KERN_DEBUG "evbug.c: Connected device: %s (%s at %s)\n", |
a6c2490f | 68 | dev_name(&dev->dev), |
81956128 DT |
69 | dev->name ?: "unknown", |
70 | dev->phys ?: "unknown"); | |
1da177e4 | 71 | |
5b2a0826 DT |
72 | return 0; |
73 | ||
74 | err_unregister_handle: | |
75 | input_unregister_handle(handle); | |
76 | err_free_handle: | |
77 | kfree(handle); | |
78 | return error; | |
1da177e4 LT |
79 | } |
80 | ||
81 | static void evbug_disconnect(struct input_handle *handle) | |
82 | { | |
81956128 | 83 | printk(KERN_DEBUG "evbug.c: Disconnected device: %s\n", |
a6c2490f | 84 | dev_name(&handle->dev->dev)); |
1da177e4 LT |
85 | |
86 | input_close_device(handle); | |
5b2a0826 | 87 | input_unregister_handle(handle); |
1da177e4 LT |
88 | kfree(handle); |
89 | } | |
90 | ||
66e66118 | 91 | static const struct input_device_id evbug_ids[] = { |
1da177e4 LT |
92 | { .driver_info = 1 }, /* Matches all devices */ |
93 | { }, /* Terminating zero entry */ | |
94 | }; | |
95 | ||
96 | MODULE_DEVICE_TABLE(input, evbug_ids); | |
97 | ||
98 | static struct input_handler evbug_handler = { | |
99 | .event = evbug_event, | |
100 | .connect = evbug_connect, | |
101 | .disconnect = evbug_disconnect, | |
102 | .name = "evbug", | |
103 | .id_table = evbug_ids, | |
104 | }; | |
105 | ||
106 | static int __init evbug_init(void) | |
107 | { | |
4263cf0f | 108 | return input_register_handler(&evbug_handler); |
1da177e4 LT |
109 | } |
110 | ||
111 | static void __exit evbug_exit(void) | |
112 | { | |
113 | input_unregister_handler(&evbug_handler); | |
114 | } | |
115 | ||
116 | module_init(evbug_init); | |
117 | module_exit(evbug_exit); |