[mirror_ubuntu-artful-kernel.git] / drivers / input / evbug.c

/*
 *  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
 */

#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 "evbug.c: Event. Dev: %s, Type: %d, Code: %d, Value: %d\n",
		handle->dev->phys, 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 "evbug.c: Connected device: \"%s\", %s\n", dev->name, dev->phys);

	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 "evbug.c: Disconnected device: %s\n", handle->dev->phys);

	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);
Commit	Line	Data
1da177e4	1	/*
1da177e4 LT	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
1da177e4 LT	39	static void evbug_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
1da177e4 LT	40	{
66e66118 DT	41	printk(KERN_DEBUG "evbug.c: Event. Dev: %s, Type: %d, Code: %d, Value: %d\n",
66e66118 DT	42	handle->dev->phys, type, code, value);
1da177e4 LT	43	}
1da177e4 LT	44
5b2a0826 DT	45	static int evbug_connect(struct input_handler handler, struct input_dev dev,
5b2a0826 DT	46	const struct input_device_id *id)
1da177e4 LT	47	{
1da177e4 LT	48	struct input_handle *handle;
5b2a0826	49	int error;
1da177e4	50
5b2a0826 DT	51	handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
	52	if (!handle)
	53	return -ENOMEM;
1da177e4 LT	54
	55	handle->dev = dev;
	56	handle->handler = handler;
5b2a0826 DT	57	handle->name = "evbug";
	58
	59	error = input_register_handle(handle);
	60	if (error)
	61	goto err_free_handle;
1da177e4	62
5b2a0826 DT	63	error = input_open_device(handle);
	64	if (error)
	65	goto err_unregister_handle;
1da177e4 LT	66
	67	printk(KERN_DEBUG "evbug.c: Connected device: \"%s\", %s\n", dev->name, dev->phys);
	68
5b2a0826 DT	69	return 0;
	70
	71	err_unregister_handle:
	72	input_unregister_handle(handle);
	73	err_free_handle:
	74	kfree(handle);
	75	return error;
1da177e4 LT	76	}
	77
	78	static void evbug_disconnect(struct input_handle *handle)
	79	{
	80	printk(KERN_DEBUG "evbug.c: Disconnected device: %s\n", handle->dev->phys);
	81
	82	input_close_device(handle);
5b2a0826	83	input_unregister_handle(handle);
1da177e4 LT	84	kfree(handle);
	85	}
	86
66e66118	87	static const struct input_device_id evbug_ids[] = {
1da177e4 LT	88	{ .driver_info = 1 }, /* Matches all devices */
	89	{ }, /* Terminating zero entry */
	90	};
	91
	92	MODULE_DEVICE_TABLE(input, evbug_ids);
	93
	94	static struct input_handler evbug_handler = {
	95	.event = evbug_event,
	96	.connect = evbug_connect,
	97	.disconnect = evbug_disconnect,
	98	.name = "evbug",
	99	.id_table = evbug_ids,
	100	};
	101
	102	static int __init evbug_init(void)
	103	{
4263cf0f	104	return input_register_handler(&evbug_handler);
1da177e4 LT	105	}
	106
	107	static void __exit evbug_exit(void)
	108	{
	109	input_unregister_handler(&evbug_handler);
	110	}
	111
	112	module_init(evbug_init);
	113	module_exit(evbug_exit);