6b13f685e
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/*
* Copyright (c) 1999-2001 Vojtech Pavlik
*/
/*
* Input driver event debug module - dumps all events into syslog
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Should you need to contact me, the author, you can do so either by
* e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/input.h>
#include <linux/init.h>
#include <linux/device.h>
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION("Input driver event debug module");
MODULE_LICENSE("GPL");
static void evbug_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
{
printk(KERN_DEBUG pr_fmt("Event. Dev: %s, Type: %d, Code: %d, Value: %d
"),
dev_name(&handle->dev->dev), type, code, value);
}
static int evbug_connect(struct input_handler *handler, struct input_dev *dev,
const struct input_device_id *id)
{
struct input_handle *handle;
int error;
handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
if (!handle)
return -ENOMEM;
handle->dev = dev;
handle->handler = handler;
handle->name = "evbug";
error = input_register_handle(handle);
if (error)
goto err_free_handle;
error = input_open_device(handle);
if (error)
goto err_unregister_handle;
printk(KERN_DEBUG pr_fmt("Connected device: %s (%s at %s)
"),
dev_name(&dev->dev),
dev->name ?: "unknown",
dev->phys ?: "unknown");
return 0;
err_unregister_handle:
input_unregister_handle(handle);
err_free_handle:
kfree(handle);
return error;
}
static void evbug_disconnect(struct input_handle *handle)
{
printk(KERN_DEBUG pr_fmt("Disconnected device: %s
"),
dev_name(&handle->dev->dev));
input_close_device(handle);
input_unregister_handle(handle);
kfree(handle);
}
static const struct input_device_id evbug_ids[] = {
{ .driver_info = 1 }, /* Matches all devices */
{ }, /* Terminating zero entry */
};
MODULE_DEVICE_TABLE(input, evbug_ids);
static struct input_handler evbug_handler = {
.event = evbug_event,
.connect = evbug_connect,
.disconnect = evbug_disconnect,
.name = "evbug",
.id_table = evbug_ids,
};
static int __init evbug_init(void)
{
return input_register_handler(&evbug_handler);
}
static void __exit evbug_exit(void)
{
input_unregister_handler(&evbug_handler);
}
module_init(evbug_init);
module_exit(evbug_exit);
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