[deliverable/linux.git] / drivers / input / serio / serio_raw.c

/*
 * Raw serio device providing access to a raw byte stream from underlying
 * serio port. Closely emulates behavior of pre-2.6 /dev/psaux device
 *
 * Copyright (c) 2004 Dmitry Torokhov
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 */

#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/module.h>
#include <linux/serio.h>
#include <linux/init.h>
#include <linux/major.h>
#include <linux/device.h>
#include <linux/devfs_fs_kernel.h>
#include <linux/miscdevice.h>
#include <linux/wait.h>
#include <linux/mutex.h>

#define DRIVER_DESC	"Raw serio driver"

MODULE_AUTHOR("Dmitry Torokhov <dtor@mail.ru>");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");

#define SERIO_RAW_QUEUE_LEN	64
struct serio_raw {
	unsigned char queue[SERIO_RAW_QUEUE_LEN];
	unsigned int tail, head;

	char name[16];
	unsigned int refcnt;
	struct serio *serio;
	struct miscdevice dev;
	wait_queue_head_t wait;
	struct list_head list;
	struct list_head node;
};

struct serio_raw_list {
	struct fasync_struct *fasync;
	struct serio_raw *serio_raw;
	struct list_head node;
};

static DEFINE_MUTEX(serio_raw_mutex);
static LIST_HEAD(serio_raw_list);
static unsigned int serio_raw_no;

/*********************************************************************
 *             Interface with userspace (file operations)            *
 *********************************************************************/

static int serio_raw_fasync(int fd, struct file *file, int on)
{
	struct serio_raw_list *list = file->private_data;
	int retval;

	retval = fasync_helper(fd, file, on, &list->fasync);
	return retval < 0 ? retval : 0;
}

static struct serio_raw *serio_raw_locate(int minor)
{
	struct serio_raw *serio_raw;

	list_for_each_entry(serio_raw, &serio_raw_list, node) {
		if (serio_raw->dev.minor == minor)
			return serio_raw;
	}

	return NULL;
}

static int serio_raw_open(struct inode *inode, struct file *file)
{
	struct serio_raw *serio_raw;
	struct serio_raw_list *list;
	int retval = 0;

	retval = mutex_lock_interruptible(&serio_raw_mutex);
	if (retval)
		return retval;

	if (!(serio_raw = serio_raw_locate(iminor(inode)))) {
		retval = -ENODEV;
		goto out;
	}

	if (!serio_raw->serio) {
		retval = -ENODEV;
		goto out;
	}

	if (!(list = kmalloc(sizeof(struct serio_raw_list), GFP_KERNEL))) {
		retval = -ENOMEM;
		goto out;
	}

	memset(list, 0, sizeof(struct serio_raw_list));
	list->serio_raw = serio_raw;
	file->private_data = list;

	serio_raw->refcnt++;
	list_add_tail(&list->node, &serio_raw->list);

out:
	mutex_unlock(&serio_raw_mutex);
	return retval;
}

static int serio_raw_cleanup(struct serio_raw *serio_raw)
{
	if (--serio_raw->refcnt == 0) {
		misc_deregister(&serio_raw->dev);
		list_del_init(&serio_raw->node);
		kfree(serio_raw);

		return 1;
	}

	return 0;
}

static int serio_raw_release(struct inode *inode, struct file *file)
{
	struct serio_raw_list *list = file->private_data;
	struct serio_raw *serio_raw = list->serio_raw;

	mutex_lock(&serio_raw_mutex);

	serio_raw_fasync(-1, file, 0);
	serio_raw_cleanup(serio_raw);

	mutex_unlock(&serio_raw_mutex);
	return 0;
}

static int serio_raw_fetch_byte(struct serio_raw *serio_raw, char *c)
{
	unsigned long flags;
	int empty;

	spin_lock_irqsave(&serio_raw->serio->lock, flags);

	empty = serio_raw->head == serio_raw->tail;
	if (!empty) {
		*c = serio_raw->queue[serio_raw->tail];
		serio_raw->tail = (serio_raw->tail + 1) % SERIO_RAW_QUEUE_LEN;
	}

	spin_unlock_irqrestore(&serio_raw->serio->lock, flags);

	return !empty;
}

static ssize_t serio_raw_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
{
	struct serio_raw_list *list = file->private_data;
	struct serio_raw *serio_raw = list->serio_raw;
	char c;
	ssize_t retval = 0;

	if (!serio_raw->serio)
		return -ENODEV;

	if (serio_raw->head == serio_raw->tail && (file->f_flags & O_NONBLOCK))
		return -EAGAIN;

	retval = wait_event_interruptible(list->serio_raw->wait,
					  serio_raw->head != serio_raw->tail || !serio_raw->serio);
	if (retval)
		return retval;

	if (!serio_raw->serio)
		return -ENODEV;

	while (retval < count && serio_raw_fetch_byte(serio_raw, &c)) {
		if (put_user(c, buffer++))
			return -EFAULT;
		retval++;
	}

	return retval;
}

static ssize_t serio_raw_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
{
	struct serio_raw_list *list = file->private_data;
	ssize_t written = 0;
	int retval;
	unsigned char c;

	retval = mutex_lock_interruptible(&serio_raw_mutex);
	if (retval)
		return retval;

	if (!list->serio_raw->serio) {
		retval = -ENODEV;
		goto out;
	}

	if (count > 32)
		count = 32;

	while (count--) {
		if (get_user(c, buffer++)) {
			retval = -EFAULT;
			goto out;
		}
		if (serio_write(list->serio_raw->serio, c)) {
			retval = -EIO;
			goto out;
		}
		written++;
	};

out:
	mutex_unlock(&serio_raw_mutex);
	return written;
}

static unsigned int serio_raw_poll(struct file *file, poll_table *wait)
{
	struct serio_raw_list *list = file->private_data;

	poll_wait(file, &list->serio_raw->wait, wait);

	if (list->serio_raw->head != list->serio_raw->tail)
		return POLLIN | POLLRDNORM;

	return 0;
}

static struct file_operations serio_raw_fops = {
	.owner =	THIS_MODULE,
	.open =		serio_raw_open,
	.release =	serio_raw_release,
	.read =		serio_raw_read,
	.write =	serio_raw_write,
	.poll =		serio_raw_poll,
	.fasync =	serio_raw_fasync,
};


/*********************************************************************
 *                   Interface with serio port   	             *
 *********************************************************************/

static irqreturn_t serio_raw_interrupt(struct serio *serio, unsigned char data,
					unsigned int dfl, struct pt_regs *regs)
{
	struct serio_raw *serio_raw = serio_get_drvdata(serio);
	struct serio_raw_list *list;
	unsigned int head = serio_raw->head;

	/* we are holding serio->lock here so we are prootected */
	serio_raw->queue[head] = data;
	head = (head + 1) % SERIO_RAW_QUEUE_LEN;
	if (likely(head != serio_raw->tail)) {
		serio_raw->head = head;
		list_for_each_entry(list, &serio_raw->list, node)
			kill_fasync(&list->fasync, SIGIO, POLL_IN);
		wake_up_interruptible(&serio_raw->wait);
	}

	return IRQ_HANDLED;
}

static int serio_raw_connect(struct serio *serio, struct serio_driver *drv)
{
	struct serio_raw *serio_raw;
	int err;

	if (!(serio_raw = kmalloc(sizeof(struct serio_raw), GFP_KERNEL))) {
		printk(KERN_ERR "serio_raw.c: can't allocate memory for a device\n");
		return -ENOMEM;
	}

	mutex_lock(&serio_raw_mutex);

	memset(serio_raw, 0, sizeof(struct serio_raw));
	snprintf(serio_raw->name, sizeof(serio_raw->name), "serio_raw%d", serio_raw_no++);
	serio_raw->refcnt = 1;
	serio_raw->serio = serio;
	INIT_LIST_HEAD(&serio_raw->list);
	init_waitqueue_head(&serio_raw->wait);

	serio_set_drvdata(serio, serio_raw);

	err = serio_open(serio, drv);
	if (err)
		goto out_free;

	list_add_tail(&serio_raw->node, &serio_raw_list);

	serio_raw->dev.minor = PSMOUSE_MINOR;
	serio_raw->dev.name = serio_raw->name;
	serio_raw->dev.dev = &serio->dev;
	serio_raw->dev.fops = &serio_raw_fops;

	err = misc_register(&serio_raw->dev);
	if (err) {
		serio_raw->dev.minor = MISC_DYNAMIC_MINOR;
		err = misc_register(&serio_raw->dev);
	}

	if (err) {
		printk(KERN_INFO "serio_raw: failed to register raw access device for %s\n",
			serio->phys);
		goto out_close;
	}

	printk(KERN_INFO "serio_raw: raw access enabled on %s (%s, minor %d)\n",
		serio->phys, serio_raw->name, serio_raw->dev.minor);
	goto out;

out_close:
	serio_close(serio);
	list_del_init(&serio_raw->node);
out_free:
	serio_set_drvdata(serio, NULL);
	kfree(serio_raw);
out:
	mutex_unlock(&serio_raw_mutex);
	return err;
}

static int serio_raw_reconnect(struct serio *serio)
{
	struct serio_raw *serio_raw = serio_get_drvdata(serio);
	struct serio_driver *drv = serio->drv;

	if (!drv || !serio_raw) {
		printk(KERN_DEBUG "serio_raw: reconnect request, but serio is disconnected, ignoring...\n");
		return -1;
	}

	/*
	 * Nothing needs to be done here, we just need this method to
	 * keep the same device.
	 */
	return 0;
}

static void serio_raw_disconnect(struct serio *serio)
{
	struct serio_raw *serio_raw;

	mutex_lock(&serio_raw_mutex);

	serio_raw = serio_get_drvdata(serio);

	serio_close(serio);
	serio_set_drvdata(serio, NULL);

	serio_raw->serio = NULL;
	if (!serio_raw_cleanup(serio_raw))
		wake_up_interruptible(&serio_raw->wait);

	mutex_unlock(&serio_raw_mutex);
}

static struct serio_device_id serio_raw_serio_ids[] = {
	{
		.type	= SERIO_8042,
		.proto	= SERIO_ANY,
		.id	= SERIO_ANY,
		.extra	= SERIO_ANY,
	},
	{ 0 }
};

MODULE_DEVICE_TABLE(serio, serio_raw_serio_ids);

static struct serio_driver serio_raw_drv = {
	.driver		= {
		.name	= "serio_raw",
	},
	.description	= DRIVER_DESC,
	.id_table	= serio_raw_serio_ids,
	.interrupt	= serio_raw_interrupt,
	.connect	= serio_raw_connect,
	.reconnect	= serio_raw_reconnect,
	.disconnect	= serio_raw_disconnect,
	.manual_bind	= 1,
};

static int __init serio_raw_init(void)
{
	serio_register_driver(&serio_raw_drv);
	return 0;
}

static void __exit serio_raw_exit(void)
{
	serio_unregister_driver(&serio_raw_drv);
}

module_init(serio_raw_init);
module_exit(serio_raw_exit);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Raw serio device providing access to a raw byte stream from underlying
	3	* serio port. Closely emulates behavior of pre-2.6 /dev/psaux device
	4	*
	5	* Copyright (c) 2004 Dmitry Torokhov
	6	*
	7	* This program is free software; you can redistribute it and/or modify it
	8	* under the terms of the GNU General Public License version 2 as published by
	9	* the Free Software Foundation.
	10	*/
	11
	12	#include <linux/slab.h>
	13	#include <linux/poll.h>
	14	#include <linux/module.h>
	15	#include <linux/serio.h>
	16	#include <linux/init.h>
	17	#include <linux/major.h>
	18	#include <linux/device.h>
	19	#include <linux/devfs_fs_kernel.h>
	20	#include <linux/miscdevice.h>
	21	#include <linux/wait.h>
c4e32e9f	22	#include <linux/mutex.h>
1da177e4 LT	23
	24	#define DRIVER_DESC "Raw serio driver"
	25
	26	MODULE_AUTHOR("Dmitry Torokhov <dtor@mail.ru>");
	27	MODULE_DESCRIPTION(DRIVER_DESC);
	28	MODULE_LICENSE("GPL");
	29
	30	#define SERIO_RAW_QUEUE_LEN 64
	31	struct serio_raw {
	32	unsigned char queue[SERIO_RAW_QUEUE_LEN];
	33	unsigned int tail, head;
	34
	35	char name[16];
	36	unsigned int refcnt;
	37	struct serio *serio;
	38	struct miscdevice dev;
	39	wait_queue_head_t wait;
	40	struct list_head list;
	41	struct list_head node;
	42	};
	43
	44	struct serio_raw_list {
	45	struct fasync_struct *fasync;
	46	struct serio_raw *serio_raw;
	47	struct list_head node;
	48	};
	49
c4e32e9f	50	static DEFINE_MUTEX(serio_raw_mutex);
1da177e4 LT	51	static LIST_HEAD(serio_raw_list);
	52	static unsigned int serio_raw_no;
	53
	54	/*********************************************************************
	55	* Interface with userspace (file operations) *
	56	*********************************************************************/
	57
	58	static int serio_raw_fasync(int fd, struct file *file, int on)
	59	{
	60	struct serio_raw_list *list = file->private_data;
	61	int retval;
	62
	63	retval = fasync_helper(fd, file, on, &list->fasync);
	64	return retval < 0 ? retval : 0;
	65	}
	66
	67	static struct serio_raw *serio_raw_locate(int minor)
	68	{
	69	struct serio_raw *serio_raw;
	70
	71	list_for_each_entry(serio_raw, &serio_raw_list, node) {
	72	if (serio_raw->dev.minor == minor)
	73	return serio_raw;
	74	}
	75
	76	return NULL;
	77	}
	78
	79	static int serio_raw_open(struct inode inode, struct file file)
	80	{
	81	struct serio_raw *serio_raw;
	82	struct serio_raw_list *list;
	83	int retval = 0;
	84
c4e32e9f	85	retval = mutex_lock_interruptible(&serio_raw_mutex);
1da177e4 LT	86	if (retval)
	87	return retval;
	88
	89	if (!(serio_raw = serio_raw_locate(iminor(inode)))) {
	90	retval = -ENODEV;
	91	goto out;
	92	}
	93
	94	if (!serio_raw->serio) {
	95	retval = -ENODEV;
	96	goto out;
	97	}
	98
	99	if (!(list = kmalloc(sizeof(struct serio_raw_list), GFP_KERNEL))) {
	100	retval = -ENOMEM;
	101	goto out;
	102	}
	103
	104	memset(list, 0, sizeof(struct serio_raw_list));
	105	list->serio_raw = serio_raw;
	106	file->private_data = list;
	107
	108	serio_raw->refcnt++;
	109	list_add_tail(&list->node, &serio_raw->list);
	110
	111	out:
c4e32e9f	112	mutex_unlock(&serio_raw_mutex);
1da177e4 LT	113	return retval;
	114	}
	115
	116	static int serio_raw_cleanup(struct serio_raw *serio_raw)
	117	{
	118	if (--serio_raw->refcnt == 0) {
	119	misc_deregister(&serio_raw->dev);
	120	list_del_init(&serio_raw->node);
	121	kfree(serio_raw);
	122
	123	return 1;
	124	}
	125
	126	return 0;
	127	}
	128
	129	static int serio_raw_release(struct inode inode, struct file file)
	130	{
	131	struct serio_raw_list *list = file->private_data;
	132	struct serio_raw *serio_raw = list->serio_raw;
	133
c4e32e9f	134	mutex_lock(&serio_raw_mutex);
1da177e4 LT	135
	136	serio_raw_fasync(-1, file, 0);
	137	serio_raw_cleanup(serio_raw);
	138
c4e32e9f	139	mutex_unlock(&serio_raw_mutex);
1da177e4 LT	140	return 0;
	141	}
	142
	143	static int serio_raw_fetch_byte(struct serio_raw serio_raw, char c)
	144	{
	145	unsigned long flags;
	146	int empty;
	147
	148	spin_lock_irqsave(&serio_raw->serio->lock, flags);
	149
	150	empty = serio_raw->head == serio_raw->tail;
	151	if (!empty) {
	152	*c = serio_raw->queue[serio_raw->tail];
	153	serio_raw->tail = (serio_raw->tail + 1) % SERIO_RAW_QUEUE_LEN;
	154	}
	155
	156	spin_unlock_irqrestore(&serio_raw->serio->lock, flags);
	157
	158	return !empty;
	159	}
	160
	161	static ssize_t serio_raw_read(struct file file, char __user buffer, size_t count, loff_t *ppos)
	162	{
	163	struct serio_raw_list *list = file->private_data;
	164	struct serio_raw *serio_raw = list->serio_raw;
	165	char c;
	166	ssize_t retval = 0;
	167
	168	if (!serio_raw->serio)
	169	return -ENODEV;
	170
	171	if (serio_raw->head == serio_raw->tail && (file->f_flags & O_NONBLOCK))
	172	return -EAGAIN;
	173
	174	retval = wait_event_interruptible(list->serio_raw->wait,
	175	serio_raw->head != serio_raw->tail \|\| !serio_raw->serio);
	176	if (retval)
	177	return retval;
	178
	179	if (!serio_raw->serio)
	180	return -ENODEV;
	181
	182	while (retval < count && serio_raw_fetch_byte(serio_raw, &c)) {
	183	if (put_user(c, buffer++))
	184	return -EFAULT;
	185	retval++;
	186	}
	187
	188	return retval;
	189	}
	190
	191	static ssize_t serio_raw_write(struct file file, const char __user buffer, size_t count, loff_t *ppos)
	192	{
	193	struct serio_raw_list *list = file->private_data;
	194	ssize_t written = 0;
	195	int retval;
	196	unsigned char c;
	197
c4e32e9f	198	retval = mutex_lock_interruptible(&serio_raw_mutex);
1da177e4 LT	199	if (retval)
	200	return retval;
	201
	202	if (!list->serio_raw->serio) {
	203	retval = -ENODEV;
	204	goto out;
	205	}
	206
	207	if (count > 32)
	208	count = 32;
	209
	210	while (count--) {
	211	if (get_user(c, buffer++)) {
	212	retval = -EFAULT;
	213	goto out;
	214	}
	215	if (serio_write(list->serio_raw->serio, c)) {
	216	retval = -EIO;
	217	goto out;
	218	}
	219	written++;
	220	};
	221
	222	out:
c4e32e9f	223	mutex_unlock(&serio_raw_mutex);
1da177e4 LT	224	return written;
	225	}
	226
	227	static unsigned int serio_raw_poll(struct file file, poll_table wait)
	228	{
	229	struct serio_raw_list *list = file->private_data;
	230
	231	poll_wait(file, &list->serio_raw->wait, wait);
	232
	233	if (list->serio_raw->head != list->serio_raw->tail)
	234	return POLLIN \| POLLRDNORM;
	235
	236	return 0;
	237	}
	238
	239	static struct file_operations serio_raw_fops = {
	240	.owner = THIS_MODULE,
	241	.open = serio_raw_open,
	242	.release = serio_raw_release,
	243	.read = serio_raw_read,
	244	.write = serio_raw_write,
	245	.poll = serio_raw_poll,
	246	.fasync = serio_raw_fasync,
	247	};
	248
	249
	250	/*********************************************************************
	251	* Interface with serio port *
	252	*********************************************************************/
	253
	254	static irqreturn_t serio_raw_interrupt(struct serio *serio, unsigned char data,
	255	unsigned int dfl, struct pt_regs *regs)
	256	{
	257	struct serio_raw *serio_raw = serio_get_drvdata(serio);
	258	struct serio_raw_list *list;
	259	unsigned int head = serio_raw->head;
	260
	261	/* we are holding serio->lock here so we are prootected */
	262	serio_raw->queue[head] = data;
	263	head = (head + 1) % SERIO_RAW_QUEUE_LEN;
	264	if (likely(head != serio_raw->tail)) {
	265	serio_raw->head = head;
	266	list_for_each_entry(list, &serio_raw->list, node)
	267	kill_fasync(&list->fasync, SIGIO, POLL_IN);
	268	wake_up_interruptible(&serio_raw->wait);
	269	}
	270
	271	return IRQ_HANDLED;
	272	}
	273
	274	static int serio_raw_connect(struct serio serio, struct serio_driver drv)
	275	{
	276	struct serio_raw *serio_raw;
	277	int err;
	278
	279	if (!(serio_raw = kmalloc(sizeof(struct serio_raw), GFP_KERNEL))) {
	280	printk(KERN_ERR "serio_raw.c: can't allocate memory for a device\n");
	281	return -ENOMEM;
	282	}
	283
c4e32e9f	284	mutex_lock(&serio_raw_mutex);
1da177e4 LT	285
	286	memset(serio_raw, 0, sizeof(struct serio_raw));
	287	snprintf(serio_raw->name, sizeof(serio_raw->name), "serio_raw%d", serio_raw_no++);
	288	serio_raw->refcnt = 1;
	289	serio_raw->serio = serio;
	290	INIT_LIST_HEAD(&serio_raw->list);
	291	init_waitqueue_head(&serio_raw->wait);
	292
	293	serio_set_drvdata(serio, serio_raw);
	294
	295	err = serio_open(serio, drv);
	296	if (err)
	297	goto out_free;
	298
	299	list_add_tail(&serio_raw->node, &serio_raw_list);
	300
	301	serio_raw->dev.minor = PSMOUSE_MINOR;
	302	serio_raw->dev.name = serio_raw->name;
dc1e97b5	303	serio_raw->dev.dev = &serio->dev;
1da177e4 LT	304	serio_raw->dev.fops = &serio_raw_fops;
	305
	306	err = misc_register(&serio_raw->dev);
	307	if (err) {
	308	serio_raw->dev.minor = MISC_DYNAMIC_MINOR;
	309	err = misc_register(&serio_raw->dev);
	310	}
	311
	312	if (err) {
	313	printk(KERN_INFO "serio_raw: failed to register raw access device for %s\n",
	314	serio->phys);
	315	goto out_close;
	316	}
	317
	318	printk(KERN_INFO "serio_raw: raw access enabled on %s (%s, minor %d)\n",
	319	serio->phys, serio_raw->name, serio_raw->dev.minor);
	320	goto out;
	321
	322	out_close:
	323	serio_close(serio);
	324	list_del_init(&serio_raw->node);
	325	out_free:
	326	serio_set_drvdata(serio, NULL);
	327	kfree(serio_raw);
	328	out:
c4e32e9f	329	mutex_unlock(&serio_raw_mutex);
1da177e4 LT	330	return err;
	331	}
	332
	333	static int serio_raw_reconnect(struct serio *serio)
	334	{
	335	struct serio_raw *serio_raw = serio_get_drvdata(serio);
	336	struct serio_driver *drv = serio->drv;
	337
	338	if (!drv \|\| !serio_raw) {
	339	printk(KERN_DEBUG "serio_raw: reconnect request, but serio is disconnected, ignoring...\n");
	340	return -1;
	341	}
	342
	343	/*
	344	* Nothing needs to be done here, we just need this method to
	345	* keep the same device.
	346	*/
	347	return 0;
	348	}
	349
	350	static void serio_raw_disconnect(struct serio *serio)
	351	{
	352	struct serio_raw *serio_raw;
	353
c4e32e9f	354	mutex_lock(&serio_raw_mutex);
1da177e4 LT	355
	356	serio_raw = serio_get_drvdata(serio);
	357
	358	serio_close(serio);
	359	serio_set_drvdata(serio, NULL);
	360
	361	serio_raw->serio = NULL;
	362	if (!serio_raw_cleanup(serio_raw))
	363	wake_up_interruptible(&serio_raw->wait);
	364
c4e32e9f	365	mutex_unlock(&serio_raw_mutex);
1da177e4 LT	366	}
	367
	368	static struct serio_device_id serio_raw_serio_ids[] = {
	369	{
	370	.type = SERIO_8042,
	371	.proto = SERIO_ANY,
	372	.id = SERIO_ANY,
	373	.extra = SERIO_ANY,
	374	},
	375	{ 0 }
	376	};
	377
	378	MODULE_DEVICE_TABLE(serio, serio_raw_serio_ids);
	379
	380	static struct serio_driver serio_raw_drv = {
	381	.driver = {
	382	.name = "serio_raw",
	383	},
	384	.description = DRIVER_DESC,
	385	.id_table = serio_raw_serio_ids,
	386	.interrupt = serio_raw_interrupt,
	387	.connect = serio_raw_connect,
	388	.reconnect = serio_raw_reconnect,
	389	.disconnect = serio_raw_disconnect,
	390	.manual_bind = 1,
	391	};
	392
	393	static int __init serio_raw_init(void)
	394	{
	395	serio_register_driver(&serio_raw_drv);
	396	return 0;
	397	}
	398
	399	static void __exit serio_raw_exit(void)
	400	{
	401	serio_unregister_driver(&serio_raw_drv);
	402	}
	403
	404	module_init(serio_raw_init);
	405	module_exit(serio_raw_exit);