drivers/input/evbug.c

   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
  37 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
  38 MODULE_DESCRIPTION("Input driver event debug module");
  39 MODULE_LICENSE("GPL");
  40
  41 static char evbug_name[] = "evbug";
  42
  43 static 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
  49 static 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
  68 static 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
  77 static const struct input_device_id evbug_ids[] = {
  78         { .driver_info = 1 },   /* Matches all devices */
  79         { },                    /* Terminating zero entry */
  80 };
  81
  82 MODULE_DEVICE_TABLE(input, evbug_ids);
  83
  84 static 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
  92 static int __init evbug_init(void)
  93 {
  94         return input_register_handler(&evbug_handler);
  95 }
  96
  97 static void __exit evbug_exit(void)
  98 {
  99         input_unregister_handler(&evbug_handler);
 100 }
 101
 102 module_init(evbug_init);
 103 module_exit(evbug_exit);