drivers/input/serio/serio_raw.c - linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0-only
 /*
  * 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
  */

 #include <linux/kref.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/poll.h>
 #include <linux/module.h>
 #include <linux/serio.h>
 #include <linux/major.h>
 #include <linux/device.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];
 	struct kref kref;
 	struct serio *serio;
 	struct miscdevice dev;
 	wait_queue_head_t wait;
 	struct list_head client_list;
 	struct list_head node;
 	bool dead;
 };

 struct serio_raw_client {
 	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);

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

 static int serio_raw_fasync(int fd, struct file *file, int on)
 {
 	struct serio_raw_client *client = file->private_data;

 	return fasync_helper(fd, file, on, &client->fasync);
 }

 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_client *client;
 	int retval;

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

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

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

 	client = kzalloc(sizeof(*client), GFP_KERNEL);
 	if (!client) {
 		retval = -ENOMEM;
 		goto out;
 	}

 	client->serio_raw = serio_raw;
 	file->private_data = client;

 	kref_get(&serio_raw->kref);

 	serio_pause_rx(serio_raw->serio);
 	list_add_tail(&client->node, &serio_raw->client_list);
 	serio_continue_rx(serio_raw->serio);

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

 static void serio_raw_free(struct kref *kref)
 {
 	struct serio_raw *serio_raw =
 			container_of(kref, struct serio_raw, kref);

 	put_device(&serio_raw->serio->dev);
 	kfree(serio_raw);
 }

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

 	serio_pause_rx(serio_raw->serio);
 	list_del(&client->node);
 	serio_continue_rx(serio_raw->serio);

 	kfree(client);

 	kref_put(&serio_raw->kref, serio_raw_free);

 	return 0;
 }

 static bool serio_raw_fetch_byte(struct serio_raw *serio_raw, char *c)
 {
 	bool empty;

 	serio_pause_rx(serio_raw->serio);

 	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;
 	}

 	serio_continue_rx(serio_raw->serio);

 	return !empty;
 }

 static ssize_t serio_raw_read(struct file *file, char __user *buffer,
 			      size_t count, loff_t *ppos)
 {
 	struct serio_raw_client *client = file->private_data;
 	struct serio_raw *serio_raw = client->serio_raw;
 	char c;
 	ssize_t read = 0;
 	int error;

 	for (;;) {
 		if (serio_raw->dead)
 			return -ENODEV;

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

 		if (count == 0)
 			break;

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

 		if (read)
 			break;

 		if (!(file->f_flags & O_NONBLOCK)) {
 			error = wait_event_interruptible(serio_raw->wait,
 					serio_raw->head != serio_raw->tail ||
 					serio_raw->dead);
 			if (error)
 				return error;
 		}
 	}

 	return read;
 }

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

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

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

 	if (count > 32)
 		count = 32;

 	while (count--) {
 		if (get_user(c, buffer++)) {
 			retval = -EFAULT;
 			goto out;
 		}

 		if (serio_write(serio_raw->serio, c)) {
 			/* Either signal error or partial write */
 			if (retval == 0)
 				retval = -EIO;
 			goto out;
 		}

 		retval++;
 	}

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

 static __poll_t serio_raw_poll(struct file *file, poll_table *wait)
 {
 	struct serio_raw_client *client = file->private_data;
 	struct serio_raw *serio_raw = client->serio_raw;
 	__poll_t mask;

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

 	mask = serio_raw->dead ? EPOLLHUP | EPOLLERR : EPOLLOUT | EPOLLWRNORM;
 	if (serio_raw->head != serio_raw->tail)
 		mask |= EPOLLIN | EPOLLRDNORM;

 	return mask;
 }

 static const 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,
 	.llseek		= noop_llseek,
 };


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

 static irqreturn_t serio_raw_interrupt(struct serio *serio, unsigned char data,
 					unsigned int dfl)
 {
 	struct serio_raw *serio_raw = serio_get_drvdata(serio);
 	struct serio_raw_client *client;
 	unsigned int head = serio_raw->head;

 	/* we are holding serio->lock here so we are protected */
 	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(client, &serio_raw->client_list, node)
 			kill_fasync(&client->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)
 {
 	static atomic_t serio_raw_no = ATOMIC_INIT(-1);
 	struct serio_raw *serio_raw;
 	int err;

 	serio_raw = kzalloc(sizeof(*serio_raw), GFP_KERNEL);
 	if (!serio_raw) {
 		dev_dbg(&serio->dev, "can't allocate memory for a device\n");
 		return -ENOMEM;
 	}

 	snprintf(serio_raw->name, sizeof(serio_raw->name),
 		 "serio_raw%ld", (long)atomic_inc_return(&serio_raw_no));
 	kref_init(&serio_raw->kref);
 	INIT_LIST_HEAD(&serio_raw->client_list);
 	init_waitqueue_head(&serio_raw->wait);

 	serio_raw->serio = serio;
 	get_device(&serio->dev);

 	serio_set_drvdata(serio, serio_raw);

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

 	err = mutex_lock_killable(&serio_raw_mutex);
 	if (err)
 		goto err_close;

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

 	serio_raw->dev.minor = PSMOUSE_MINOR;
 	serio_raw->dev.name = serio_raw->name;
 	serio_raw->dev.parent = &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) {
 		dev_err(&serio->dev,
 			"failed to register raw access device for %s\n",
 			serio->phys);
 		goto err_unlink;
 	}

 	dev_info(&serio->dev, "raw access enabled on %s (%s, minor %d)\n",
 		 serio->phys, serio_raw->name, serio_raw->dev.minor);
 	return 0;

 err_unlink:
 	list_del_init(&serio_raw->node);
 err_close:
 	serio_close(serio);
 err_free:
 	serio_set_drvdata(serio, NULL);
 	kref_put(&serio_raw->kref, serio_raw_free);
 	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) {
 		dev_dbg(&serio->dev,
 			"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;
 }

 /*
  * Wake up users waiting for IO so they can disconnect from
  * dead device.
  */
 static void serio_raw_hangup(struct serio_raw *serio_raw)
 {
 	struct serio_raw_client *client;

 	serio_pause_rx(serio_raw->serio);
 	list_for_each_entry(client, &serio_raw->client_list, node)
 		kill_fasync(&client->fasync, SIGIO, POLL_HUP);
 	serio_continue_rx(serio_raw->serio);

 	wake_up_interruptible(&serio_raw->wait);
 }


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

 	misc_deregister(&serio_raw->dev);

 	mutex_lock(&serio_raw_mutex);
 	serio_raw->dead = true;
 	list_del_init(&serio_raw->node);
 	mutex_unlock(&serio_raw_mutex);

 	serio_raw_hangup(serio_raw);

 	serio_close(serio);
 	kref_put(&serio_raw->kref, serio_raw_free);

 	serio_set_drvdata(serio, NULL);
 }

 static const struct serio_device_id serio_raw_serio_ids[] = {
 	{
 		.type	= SERIO_8042,
 		.proto	= SERIO_ANY,
 		.id	= SERIO_ANY,
 		.extra	= SERIO_ANY,
 	},
 	{
 		.type	= SERIO_8042_XL,
 		.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	= true,
 };

 module_serio_driver(serio_raw_drv);
	// SPDX-License-Identifier: GPL-2.0-only
	/*
	* 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
	*/

	#include <linux/kref.h>
	#include <linux/sched.h>
	#include <linux/slab.h>
	#include <linux/poll.h>
	#include <linux/module.h>
	#include <linux/serio.h>
	#include <linux/major.h>
	#include <linux/device.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];
	struct kref kref;
	struct serio *serio;
	struct miscdevice dev;
	wait_queue_head_t wait;
	struct list_head client_list;
	struct list_head node;
	bool dead;
	};

	struct serio_raw_client {
	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);

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

	static int serio_raw_fasync(int fd, struct file *file, int on)
	{
	struct serio_raw_client *client = file->private_data;

	return fasync_helper(fd, file, on, &client->fasync);
	}

	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_client *client;
	int retval;

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

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

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

	client = kzalloc(sizeof(*client), GFP_KERNEL);
	if (!client) {
	retval = -ENOMEM;
	goto out;
	}

	client->serio_raw = serio_raw;
	file->private_data = client;

	kref_get(&serio_raw->kref);

	serio_pause_rx(serio_raw->serio);
	list_add_tail(&client->node, &serio_raw->client_list);
	serio_continue_rx(serio_raw->serio);

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

	static void serio_raw_free(struct kref *kref)
	{
	struct serio_raw *serio_raw =
	container_of(kref, struct serio_raw, kref);

	put_device(&serio_raw->serio->dev);
	kfree(serio_raw);
	}

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

	serio_pause_rx(serio_raw->serio);
	list_del(&client->node);
	serio_continue_rx(serio_raw->serio);

	kfree(client);

	kref_put(&serio_raw->kref, serio_raw_free);

	return 0;
	}

	static bool serio_raw_fetch_byte(struct serio_raw serio_raw, char c)
	{
	bool empty;

	serio_pause_rx(serio_raw->serio);

	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;
	}

	serio_continue_rx(serio_raw->serio);

	return !empty;
	}

	static ssize_t serio_raw_read(struct file file, char __user buffer,
	size_t count, loff_t *ppos)
	{
	struct serio_raw_client *client = file->private_data;
	struct serio_raw *serio_raw = client->serio_raw;
	char c;
	ssize_t read = 0;
	int error;

	for (;;) {
	if (serio_raw->dead)
	return -ENODEV;

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

	if (count == 0)
	break;

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

	if (read)
	break;

	if (!(file->f_flags & O_NONBLOCK)) {
	error = wait_event_interruptible(serio_raw->wait,
	serio_raw->head != serio_raw->tail \|\|
	serio_raw->dead);
	if (error)
	return error;
	}
	}

	return read;
	}

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

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

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

	if (count > 32)
	count = 32;

	while (count--) {
	if (get_user(c, buffer++)) {
	retval = -EFAULT;
	goto out;
	}

	if (serio_write(serio_raw->serio, c)) {
	/* Either signal error or partial write */
	if (retval == 0)
	retval = -EIO;
	goto out;
	}

	retval++;
	}

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

	static __poll_t serio_raw_poll(struct file file, poll_table wait)
	{
	struct serio_raw_client *client = file->private_data;
	struct serio_raw *serio_raw = client->serio_raw;
	__poll_t mask;

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

	mask = serio_raw->dead ? EPOLLHUP \| EPOLLERR : EPOLLOUT \| EPOLLWRNORM;
	if (serio_raw->head != serio_raw->tail)
	mask \|= EPOLLIN \| EPOLLRDNORM;

	return mask;
	}

	static const 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,
	.llseek = noop_llseek,
	};


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

	static irqreturn_t serio_raw_interrupt(struct serio *serio, unsigned char data,
	unsigned int dfl)
	{
	struct serio_raw *serio_raw = serio_get_drvdata(serio);
	struct serio_raw_client *client;
	unsigned int head = serio_raw->head;

	/* we are holding serio->lock here so we are protected */
	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(client, &serio_raw->client_list, node)
	kill_fasync(&client->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)
	{
	static atomic_t serio_raw_no = ATOMIC_INIT(-1);
	struct serio_raw *serio_raw;
	int err;

	serio_raw = kzalloc(sizeof(*serio_raw), GFP_KERNEL);
	if (!serio_raw) {
	dev_dbg(&serio->dev, "can't allocate memory for a device\n");
	return -ENOMEM;
	}

	snprintf(serio_raw->name, sizeof(serio_raw->name),
	"serio_raw%ld", (long)atomic_inc_return(&serio_raw_no));
	kref_init(&serio_raw->kref);
	INIT_LIST_HEAD(&serio_raw->client_list);
	init_waitqueue_head(&serio_raw->wait);

	serio_raw->serio = serio;
	get_device(&serio->dev);

	serio_set_drvdata(serio, serio_raw);

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

	err = mutex_lock_killable(&serio_raw_mutex);
	if (err)
	goto err_close;

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

	serio_raw->dev.minor = PSMOUSE_MINOR;
	serio_raw->dev.name = serio_raw->name;
	serio_raw->dev.parent = &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) {
	dev_err(&serio->dev,
	"failed to register raw access device for %s\n",
	serio->phys);
	goto err_unlink;
	}

	dev_info(&serio->dev, "raw access enabled on %s (%s, minor %d)\n",
	serio->phys, serio_raw->name, serio_raw->dev.minor);
	return 0;

	err_unlink:
	list_del_init(&serio_raw->node);
	err_close:
	serio_close(serio);
	err_free:
	serio_set_drvdata(serio, NULL);
	kref_put(&serio_raw->kref, serio_raw_free);
	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) {
	dev_dbg(&serio->dev,
	"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;
	}

	/*
	* Wake up users waiting for IO so they can disconnect from
	* dead device.
	*/
	static void serio_raw_hangup(struct serio_raw *serio_raw)
	{
	struct serio_raw_client *client;

	serio_pause_rx(serio_raw->serio);
	list_for_each_entry(client, &serio_raw->client_list, node)
	kill_fasync(&client->fasync, SIGIO, POLL_HUP);
	serio_continue_rx(serio_raw->serio);

	wake_up_interruptible(&serio_raw->wait);
	}


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

	misc_deregister(&serio_raw->dev);

	mutex_lock(&serio_raw_mutex);
	serio_raw->dead = true;
	list_del_init(&serio_raw->node);
	mutex_unlock(&serio_raw_mutex);

	serio_raw_hangup(serio_raw);

	serio_close(serio);
	kref_put(&serio_raw->kref, serio_raw_free);

	serio_set_drvdata(serio, NULL);
	}

	static const struct serio_device_id serio_raw_serio_ids[] = {
	{
	.type = SERIO_8042,
	.proto = SERIO_ANY,
	.id = SERIO_ANY,
	.extra = SERIO_ANY,
	},
	{
	.type = SERIO_8042_XL,
	.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 = true,
	};

	module_serio_driver(serio_raw_drv);