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1 | /* |
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 | |
39 | static void evbug_event(struct input_handle *handle, unsigned int type, unsigned int code, int value) |
40 | { |
41 | printk(KERN_DEBUG "evbug.c: Event. Dev: %s, Type: %d, Code: %d, Value: %d\n", |
42 | dev_name(&handle->dev->dev), type, code, value); |
43 | } |
44 | |
45 | static int evbug_connect(struct input_handler *handler, struct input_dev *dev, |
46 | const struct input_device_id *id) |
47 | { |
48 | struct input_handle *handle; |
49 | int error; |
50 | |
51 | handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL); |
52 | if (!handle) |
53 | return -ENOMEM; |
54 | |
55 | handle->dev = dev; |
56 | handle->handler = handler; |
57 | handle->name = "evbug"; |
58 | |
59 | error = input_register_handle(handle); |
60 | if (error) |
61 | goto err_free_handle; |
62 | |
63 | error = input_open_device(handle); |
64 | if (error) |
65 | goto err_unregister_handle; |
66 | |
67 | printk(KERN_DEBUG "evbug.c: Connected device: %s (%s at %s)\n", |
68 | dev_name(&dev->dev), |
69 | dev->name ?: "unknown", |
70 | dev->phys ?: "unknown"); |
71 | |
72 | return 0; |
73 | |
74 | err_unregister_handle: |
75 | input_unregister_handle(handle); |
76 | err_free_handle: |
77 | kfree(handle); |
78 | return error; |
79 | } |
80 | |
81 | static void evbug_disconnect(struct input_handle *handle) |
82 | { |
83 | printk(KERN_DEBUG "evbug.c: Disconnected device: %s\n", |
84 | dev_name(&handle->dev->dev)); |
85 | |
86 | input_close_device(handle); |
87 | input_unregister_handle(handle); |
88 | kfree(handle); |
89 | } |
90 | |
91 | static const struct input_device_id evbug_ids[] = { |
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 | { |
108 | return input_register_handler(&evbug_handler); |
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); |
118 |
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v2.6.34-rc5
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