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); 104