Merge tag 'gpio-v3.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw...
[linux-2.6.git] / drivers / input / evbug.c
blobcd4e6679d61a9e0a0a9f72f19a0ae2fcbdc186a8
1 /*
2 * Copyright (c) 1999-2001 Vojtech Pavlik
3 */
5 /*
6 * Input driver event debug module - dumps all events into syslog
7 */
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.
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.
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
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
29 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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>
37 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
38 MODULE_DESCRIPTION("Input driver event debug module");
39 MODULE_LICENSE("GPL");
41 static void evbug_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
43 printk(KERN_DEBUG pr_fmt("Event. Dev: %s, Type: %d, Code: %d, Value: %d\n"),
44 dev_name(&handle->dev->dev), type, code, value);
47 static int evbug_connect(struct input_handler *handler, struct input_dev *dev,
48 const struct input_device_id *id)
50 struct input_handle *handle;
51 int error;
53 handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
54 if (!handle)
55 return -ENOMEM;
57 handle->dev = dev;
58 handle->handler = handler;
59 handle->name = "evbug";
61 error = input_register_handle(handle);
62 if (error)
63 goto err_free_handle;
65 error = input_open_device(handle);
66 if (error)
67 goto err_unregister_handle;
69 printk(KERN_DEBUG pr_fmt("Connected device: %s (%s at %s)\n"),
70 dev_name(&dev->dev),
71 dev->name ?: "unknown",
72 dev->phys ?: "unknown");
74 return 0;
76 err_unregister_handle:
77 input_unregister_handle(handle);
78 err_free_handle:
79 kfree(handle);
80 return error;
83 static void evbug_disconnect(struct input_handle *handle)
85 printk(KERN_DEBUG pr_fmt("Disconnected device: %s\n"),
86 dev_name(&handle->dev->dev));
88 input_close_device(handle);
89 input_unregister_handle(handle);
90 kfree(handle);
93 static const struct input_device_id evbug_ids[] = {
94 { .driver_info = 1 }, /* Matches all devices */
95 { }, /* Terminating zero entry */
98 MODULE_DEVICE_TABLE(input, evbug_ids);
100 static struct input_handler evbug_handler = {
101 .event = evbug_event,
102 .connect = evbug_connect,
103 .disconnect = evbug_disconnect,
104 .name = "evbug",
105 .id_table = evbug_ids,
108 static int __init evbug_init(void)
110 return input_register_handler(&evbug_handler);
113 static void __exit evbug_exit(void)
115 input_unregister_handler(&evbug_handler);
118 module_init(evbug_init);
119 module_exit(evbug_exit);