Commit 1d3e2023 authored by Daniel Ritz's avatar Daniel Ritz Committed by Greg Kroah-Hartman
Browse files

[PATCH] USB: usbtouchscreen: unified USB touchscreen driver 



A new single driver for various USB touchscreen devices. It currently
supports:
- eGalax TouchKit
- PanJit TouchSet
- 3M/Microtouch
- ITM Touchscreens

Support for the diffent devices can be enabled/disable when CONFIG_EMBEDDED
is set.

Sizes for comparision:
   text    data     bss     dec     hex filename
   2942     724       4    3670     e56 touchkitusb.ko
   2647     660       0    3307     ceb mtouchusb.ko
   2448     628       0    3076     c04 itmtouch.ko
   4145    1012      12    5169    1431 usbtouchscreen.ko

Signed-off-by: default avatarDaniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 62a13db3

drivers/usb/input/Kconfig

+39 −3
Original line number Diff line number Diff line
@@ -200,9 +200,45 @@ config USB_POWERMATE 
	  To compile this driver as a module, choose M here: the

	  module will be called powermate.



config USB_TOUCHSCREEN

	tristate "USB Touchscreen Driver"

	depends on USB && INPUT

	---help---

	  USB Touchscreen driver for:

	  - eGalax Touchkit USB

	  - PanJit TouchSet USB

	  - 3M MicroTouch USB

	  - ITM



	  Have a look at <http://linux.chapter7.ch/touchkit/> for

	  a usage description and the required user-space stuff.



	  To compile this driver as a module, choose M here: the

	  module will be called usbtouchscreen.



config USB_TOUCHSCREEN_EGALAX

	default y

	bool "eGalax device support" if EMBEDDED

	depends on USB_TOUCHSCREEN



config USB_TOUCHSCREEN_PANJIT

	default y

	bool "PanJit device support" if EMBEDDED

	depends on USB_TOUCHSCREEN



config USB_TOUCHSCREEN_3M

	default y

	bool "3M/Microtouch device support" if EMBEDDED

	depends on USB_TOUCHSCREEN



config USB_TOUCHSCREEN_ITM

	default y

	bool "ITM device support" if EMBEDDED

	depends on USB_TOUCHSCREEN



config USB_MTOUCH

	tristate "MicroTouch USB Touchscreen Driver"

	depends on USB && INPUT

	depends on USB && INPUT && !USB_TOUCHSCREEN_3M

	---help---

	  Say Y here if you want to use a MicroTouch (Now 3M) USB 

	  Touchscreen controller.
@@ -214,7 +250,7 @@ config USB_MTOUCH 


config USB_ITMTOUCH

	tristate "ITM Touch USB Touchscreen Driver"

	depends on USB && INPUT

	depends on USB && INPUT && !USB_TOUCHSCREEN_ITM

	---help---

	  Say Y here if you want to use a ITM Touch USB

	  Touchscreen controller.
@@ -226,7 +262,7 @@ config USB_ITMTOUCH 


config USB_EGALAX

	tristate "eGalax TouchKit USB Touchscreen Driver"

	depends on USB && INPUT

	depends on USB && INPUT && !USB_TOUCHSCREEN_EGALAX

	---help---

	  Say Y here if you want to use a eGalax TouchKit USB

	  Touchscreen controller.

drivers/usb/input/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -37,6 +37,7 @@ obj-$(CONFIG_USB_MOUSE) += usbmouse.o 
obj-$(CONFIG_USB_MTOUCH)	+= mtouchusb.o

obj-$(CONFIG_USB_ITMTOUCH)	+= itmtouch.o

obj-$(CONFIG_USB_EGALAX)	+= touchkitusb.o

obj-$(CONFIG_USB_TOUCHSCREEN)	+= usbtouchscreen.o

obj-$(CONFIG_USB_POWERMATE)	+= powermate.o

obj-$(CONFIG_USB_WACOM)		+= wacom.o

obj-$(CONFIG_USB_ACECAD)	+= acecad.o

drivers/usb/input/hid-core.c

+7 −0
Original line number Diff line number Diff line
@@ -1372,6 +1372,8 @@ void hid_close(struct hid_device *hid) 
		usb_kill_urb(hid->urbin);

}



#define USB_VENDOR_ID_PANJIT		0x134c



/*

 * Initialize all reports

 */
@@ -1701,6 +1703,11 @@ static const struct hid_blacklist { 
	{ USB_VENDOR_ID_APPLE, 0x030A, HID_QUIRK_POWERBOOK_HAS_FN },

	{ USB_VENDOR_ID_APPLE, 0x030B, HID_QUIRK_POWERBOOK_HAS_FN },



	{ USB_VENDOR_ID_PANJIT, 0x0001, HID_QUIRK_IGNORE },

	{ USB_VENDOR_ID_PANJIT, 0x0002, HID_QUIRK_IGNORE },

	{ USB_VENDOR_ID_PANJIT, 0x0003, HID_QUIRK_IGNORE },

	{ USB_VENDOR_ID_PANJIT, 0x0004, HID_QUIRK_IGNORE },



	{ 0, 0 }

};

drivers/usb/input/usbtouchscreen.c

0 → 100644
+605 −0
Original line number Diff line number Diff line 
/******************************************************************************

 * usbtouchscreen.c

 * Driver for USB Touchscreens, supporting those devices:

 *  - eGalax Touchkit

 *  - 3M/Microtouch

 *  - ITM

 *  - PanJit TouchSet

 *

 * Copyright (C) 2004-2006 by Daniel Ritz <daniel.ritz@gmx.ch>

 * Copyright (C) by Todd E. Johnson (mtouchusb.c)

 *

 * 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., 675 Mass Ave, Cambridge, MA 02139, USA.

 *

 * Driver is based on touchkitusb.c

 * - ITM parts are from itmtouch.c

 * - 3M parts are from mtouchusb.c

 * - PanJit parts are from an unmerged driver by Lanslott Gish

 *

 *****************************************************************************/



//#define DEBUG



#include <linux/config.h>

#include <linux/kernel.h>

#include <linux/slab.h>

#include <linux/input.h>

#include <linux/module.h>

#include <linux/init.h>

#include <linux/usb.h>

#include <linux/usb_input.h>





#define DRIVER_VERSION		"v0.3"

#define DRIVER_AUTHOR		"Daniel Ritz <daniel.ritz@gmx.ch>"

#define DRIVER_DESC		"USB Touchscreen Driver"



static int swap_xy;

module_param(swap_xy, bool, 0644);

MODULE_PARM_DESC(swap_xy, "If set X and Y axes are swapped.");



/* device specifc data/functions */

struct usbtouch_usb;

struct usbtouch_device_info {

	int min_xc, max_xc;

	int min_yc, max_yc;

	int min_press, max_press;

	int rept_size;

	int flags;



	void (*process_pkt) (struct usbtouch_usb *usbtouch, struct pt_regs *regs, unsigned char *pkt, int len);

	int  (*read_data)   (unsigned char *pkt, int *x, int *y, int *touch, int *press);

	int  (*init)        (struct usbtouch_usb *usbtouch);

};



#define USBTOUCH_FLG_BUFFER	0x01





/* a usbtouch device */

struct usbtouch_usb {

	unsigned char *data;

	dma_addr_t data_dma;

	unsigned char *buffer;

	int buf_len;

	struct urb *irq;

	struct usb_device *udev;

	struct input_dev *input;

	struct usbtouch_device_info *type;

	char name[128];

	char phys[64];

};



static void usbtouch_process_pkt(struct usbtouch_usb *usbtouch,

                                 struct pt_regs *regs, unsigned char *pkt, int len);



/* device types */

enum {

	DEVTPYE_DUMMY = -1,

	DEVTYPE_EGALAX,

	DEVTYPE_PANJIT,

	DEVTYPE_3M,

	DEVTYPE_ITM,

};



static struct usb_device_id usbtouch_devices[] = {

#ifdef CONFIG_USB_TOUCHSCREEN_EGALAX

	{USB_DEVICE(0x3823, 0x0001), .driver_info = DEVTYPE_EGALAX},

	{USB_DEVICE(0x0123, 0x0001), .driver_info = DEVTYPE_EGALAX},

	{USB_DEVICE(0x0eef, 0x0001), .driver_info = DEVTYPE_EGALAX},

	{USB_DEVICE(0x0eef, 0x0002), .driver_info = DEVTYPE_EGALAX},

#endif



#ifdef CONFIG_USB_TOUCHSCREEN_PANJIT

	{USB_DEVICE(0x134c, 0x0001), .driver_info = DEVTYPE_PANJIT},

	{USB_DEVICE(0x134c, 0x0002), .driver_info = DEVTYPE_PANJIT},

	{USB_DEVICE(0x134c, 0x0003), .driver_info = DEVTYPE_PANJIT},

	{USB_DEVICE(0x134c, 0x0004), .driver_info = DEVTYPE_PANJIT},

#endif



#ifdef CONFIG_USB_TOUCHSCREEN_3M

	{USB_DEVICE(0x0596, 0x0001), .driver_info = DEVTYPE_3M},

#endif



#ifdef CONFIG_USB_TOUCHSCREEN_ITM

	{USB_DEVICE(0x0403, 0xf9e9), .driver_info = DEVTYPE_ITM},

#endif



	{}

};





/*****************************************************************************

 * eGalax part

 */



#ifdef CONFIG_USB_TOUCHSCREEN_EGALAX



#define EGALAX_PKT_TYPE_MASK		0xFE

#define EGALAX_PKT_TYPE_REPT		0x80

#define EGALAX_PKT_TYPE_DIAG		0x0A



static int egalax_read_data(unsigned char *pkt, int *x, int *y, int *touch, int *press)

{

	if ((pkt[0] & EGALAX_PKT_TYPE_MASK) != EGALAX_PKT_TYPE_REPT)

		return 0;



	*x = ((pkt[3] & 0x0F) << 7) | (pkt[4] & 0x7F);

	*y = ((pkt[1] & 0x0F) << 7) | (pkt[2] & 0x7F);

	*touch = pkt[0] & 0x01;



	return 1;



}



static int egalax_get_pkt_len(unsigned char *buf)

{

	switch (buf[0] & EGALAX_PKT_TYPE_MASK) {

	case EGALAX_PKT_TYPE_REPT:

		return 5;



	case EGALAX_PKT_TYPE_DIAG:

		return buf[1] + 2;

	}



	return 0;

}



static void egalax_process(struct usbtouch_usb *usbtouch, struct pt_regs *regs,

                           unsigned char *pkt, int len)

{

	unsigned char *buffer;

	int pkt_len, buf_len, pos;



	/* if the buffer contains data, append */

	if (unlikely(usbtouch->buf_len)) {

		int tmp;



		/* if only 1 byte in buffer, add another one to get length */

		if (usbtouch->buf_len == 1)

			usbtouch->buffer[1] = pkt[0];



		pkt_len = egalax_get_pkt_len(usbtouch->buffer);



		/* unknown packet: drop everything */

		if (!pkt_len)

			return;



		/* append, process */

		tmp = pkt_len - usbtouch->buf_len;

		memcpy(usbtouch->buffer + usbtouch->buf_len, pkt, tmp);

		usbtouch_process_pkt(usbtouch, regs, usbtouch->buffer, pkt_len);



		buffer = pkt + tmp;

		buf_len = len - tmp;

	} else {

		buffer = pkt;

		buf_len = len;

	}



	/* only one byte left in buffer */

	if (unlikely(buf_len == 1)) {

		usbtouch->buffer[0] = buffer[0];

		usbtouch->buf_len = 1;

		return;

	}



	/* loop over the buffer */

	pos = 0;

	while (pos < buf_len) {

		/* get packet len */

		pkt_len = egalax_get_pkt_len(buffer + pos);



		/* unknown packet: drop everything */

		if (unlikely(!pkt_len))

			return;



		/* full packet: process */

		if (likely(pkt_len <= buf_len)) {

			usbtouch_process_pkt(usbtouch, regs, buffer + pos, pkt_len);

		} else {

			/* incomplete packet: save in buffer */

			memcpy(usbtouch->buffer, buffer + pos, buf_len - pos);

			usbtouch->buf_len = buf_len - pos;

		}

		pos += pkt_len;

	}

}

#endif





/*****************************************************************************

 * PanJit Part

 */

#ifdef CONFIG_USB_TOUCHSCREEN_PANJIT

static int panjit_read_data(unsigned char *pkt, int *x, int *y, int *touch, int *press)

{

	*x = ((pkt[2] & 0x0F) << 8) | pkt[1];

	*y = ((pkt[4] & 0x0F) << 8) | pkt[3];

	*touch = pkt[0] & 0x01;



	return 1;

}

#endif





/*****************************************************************************

 * 3M/Microtouch Part

 */

#ifdef CONFIG_USB_TOUCHSCREEN_3M



#define MTOUCHUSB_ASYNC_REPORT          1

#define MTOUCHUSB_RESET                 7

#define MTOUCHUSB_REQ_CTRLLR_ID         10



static int mtouch_read_data(unsigned char *pkt, int *x, int *y, int *touch, int *press)

{

	*x = (pkt[8] << 8) | pkt[7];

	*y = (pkt[10] << 8) | pkt[9];

	*touch = (pkt[2] & 0x40) ? 1 : 0;



	return 1;

}



static int mtouch_init(struct usbtouch_usb *usbtouch)

{

	int ret;



	ret = usb_control_msg(usbtouch->udev, usb_rcvctrlpipe(usbtouch->udev, 0),

	                      MTOUCHUSB_RESET,

	                      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,

	                      1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);

	dbg("%s - usb_control_msg - MTOUCHUSB_RESET - bytes|err: %d",

	    __FUNCTION__, ret);

	if (ret < 0)

		return ret;



	ret = usb_control_msg(usbtouch->udev, usb_rcvctrlpipe(usbtouch->udev, 0),

	                      MTOUCHUSB_ASYNC_REPORT,

	                      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,

	                      1, 1, NULL, 0, USB_CTRL_SET_TIMEOUT);

	dbg("%s - usb_control_msg - MTOUCHUSB_ASYNC_REPORT - bytes|err: %d",

	    __FUNCTION__, ret);

	if (ret < 0)

		return ret;



	return 0;

}

#endif





/*****************************************************************************

 * ITM Part

 */

#ifdef CONFIG_USB_TOUCHSCREEN_ITM

static int itm_read_data(unsigned char *pkt, int *x, int *y, int *touch, int *press)

{

	*x = ((pkt[0] & 0x1F) << 7) | (pkt[3] & 0x7F);

	*x = ((pkt[1] & 0x1F) << 7) | (pkt[4] & 0x7F);

	*press = ((pkt[2] & 0x1F) << 7) | (pkt[5] & 0x7F);

	*touch = ~pkt[7] & 0x20;



	return 1;

}

#endif





/*****************************************************************************

 * the different device descriptors

 */

static struct usbtouch_device_info usbtouch_dev_info[] = {

#ifdef CONFIG_USB_TOUCHSCREEN_EGALAX

	[DEVTYPE_EGALAX] = {

		.min_xc		= 0x0,

		.max_xc		= 0x07ff,

		.min_yc		= 0x0,

		.max_yc		= 0x07ff,

		.rept_size	= 16,

		.flags		= USBTOUCH_FLG_BUFFER,

		.process_pkt	= egalax_process,

		.read_data	= egalax_read_data,

	},

#endif



#ifdef CONFIG_USB_TOUCHSCREEN_PANJIT

	[DEVTYPE_PANJIT] = {

		.min_xc		= 0x0,

		.max_xc		= 0x0fff,

		.min_yc		= 0x0,

		.max_yc		= 0x0fff,

		.rept_size	= 8,

		.read_data	= panjit_read_data,

	},

#endif



#ifdef CONFIG_USB_TOUCHSCREEN_3M

	[DEVTYPE_3M] = {

		.min_xc		= 0x0,

		.max_xc		= 0x4000,

		.min_yc		= 0x0,

		.max_yc		= 0x4000,

		.rept_size	= 11,

		.read_data	= mtouch_read_data,

		.init		= mtouch_init,

	},

#endif



#ifdef CONFIG_USB_TOUCHSCREEN_ITM

	[DEVTYPE_ITM] = {

		.min_xc		= 0x0,

		.max_xc		= 0x0fff,

		.min_yc		= 0x0,

		.max_yc		= 0x0fff,

		.max_press	= 0xff,

		.rept_size	= 8,

		.read_data	= itm_read_data,

	},

#endif

};





/*****************************************************************************

 * Generic Part

 */

static void usbtouch_process_pkt(struct usbtouch_usb *usbtouch,

                                 struct pt_regs *regs, unsigned char *pkt, int len)

{

	int x, y, touch, press;

	struct usbtouch_device_info *type = usbtouch->type;



	if (!type->read_data(pkt, &x, &y, &touch, &press))

			return;



	input_regs(usbtouch->input, regs);

	input_report_key(usbtouch->input, BTN_TOUCH, touch);



	if (swap_xy) {

		input_report_abs(usbtouch->input, ABS_X, y);

		input_report_abs(usbtouch->input, ABS_Y, x);

	} else {

		input_report_abs(usbtouch->input, ABS_X, x);

		input_report_abs(usbtouch->input, ABS_Y, y);

	}

	if (type->max_press)

		input_report_abs(usbtouch->input, ABS_PRESSURE, press);

	input_sync(usbtouch->input);

}





static void usbtouch_irq(struct urb *urb, struct pt_regs *regs)

{

	struct usbtouch_usb *usbtouch = urb->context;

	int retval;



	switch (urb->status) {

	case 0:

		/* success */

		break;

	case -ETIMEDOUT:

		/* this urb is timing out */

		dbg("%s - urb timed out - was the device unplugged?",

		    __FUNCTION__);

		return;

	case -ECONNRESET:

	case -ENOENT:

	case -ESHUTDOWN:

		/* this urb is terminated, clean up */

		dbg("%s - urb shutting down with status: %d",

		    __FUNCTION__, urb->status);

		return;

	default:

		dbg("%s - nonzero urb status received: %d",

		    __FUNCTION__, urb->status);

		goto exit;

	}



	usbtouch->type->process_pkt(usbtouch, regs, usbtouch->data, urb->actual_length);



exit:

	retval = usb_submit_urb(urb, GFP_ATOMIC);

	if (retval)

		err("%s - usb_submit_urb failed with result: %d",

		    __FUNCTION__, retval);

}



static int usbtouch_open(struct input_dev *input)

{

	struct usbtouch_usb *usbtouch = input->private;



	usbtouch->irq->dev = usbtouch->udev;



	if (usb_submit_urb(usbtouch->irq, GFP_KERNEL))

		return -EIO;



	return 0;

}



static void usbtouch_close(struct input_dev *input)

{

	struct usbtouch_usb *usbtouch = input->private;



	usb_kill_urb(usbtouch->irq);

}





static void usbtouch_free_buffers(struct usb_device *udev,

				  struct usbtouch_usb *usbtouch)

{

	if (usbtouch->data)

		usb_buffer_free(udev, usbtouch->type->rept_size,

		                usbtouch->data, usbtouch->data_dma);

	kfree(usbtouch->buffer);

}





static int usbtouch_probe(struct usb_interface *intf,

			  const struct usb_device_id *id)

{

	struct usbtouch_usb *usbtouch;

	struct input_dev *input_dev;

	struct usb_host_interface *interface;

	struct usb_endpoint_descriptor *endpoint;

	struct usb_device *udev = interface_to_usbdev(intf);

	struct usbtouch_device_info *type;

	int err;



	interface = intf->cur_altsetting;

	endpoint = &interface->endpoint[0].desc;



	usbtouch = kzalloc(sizeof(struct usbtouch_usb), GFP_KERNEL);

	input_dev = input_allocate_device();

	if (!usbtouch || !input_dev)

		goto out_free;



	type = &usbtouch_dev_info[id->driver_info];

	usbtouch->type = type;

	if (!type->process_pkt)

		type->process_pkt = usbtouch_process_pkt;



	usbtouch->data = usb_buffer_alloc(udev, type->rept_size,

	                                  SLAB_KERNEL, &usbtouch->data_dma);

	if (!usbtouch->data)

		goto out_free;



	if (type->flags & USBTOUCH_FLG_BUFFER) {

		usbtouch->buffer = kmalloc(type->rept_size, GFP_KERNEL);

		if (!usbtouch->buffer)

			goto out_free_buffers;

	}



	usbtouch->irq = usb_alloc_urb(0, GFP_KERNEL);

	if (!usbtouch->irq) {

		dbg("%s - usb_alloc_urb failed: usbtouch->irq", __FUNCTION__);

		goto out_free_buffers;

	}



	usbtouch->udev = udev;

	usbtouch->input = input_dev;



	if (udev->manufacturer)

		strlcpy(usbtouch->name, udev->manufacturer, sizeof(usbtouch->name));



	if (udev->product) {

		if (udev->manufacturer)

			strlcat(usbtouch->name, " ", sizeof(usbtouch->name));

		strlcat(usbtouch->name, udev->product, sizeof(usbtouch->name));

	}



	if (!strlen(usbtouch->name))

		snprintf(usbtouch->name, sizeof(usbtouch->name),

			"USB Touchscreen %04x:%04x",

			 le16_to_cpu(udev->descriptor.idVendor),

			 le16_to_cpu(udev->descriptor.idProduct));



	usb_make_path(udev, usbtouch->phys, sizeof(usbtouch->phys));

	strlcpy(usbtouch->phys, "/input0", sizeof(usbtouch->phys));



	input_dev->name = usbtouch->name;

	input_dev->phys = usbtouch->phys;

	usb_to_input_id(udev, &input_dev->id);

	input_dev->cdev.dev = &intf->dev;

	input_dev->private = usbtouch;

	input_dev->open = usbtouch_open;

	input_dev->close = usbtouch_close;



	input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);

	input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);

	input_set_abs_params(input_dev, ABS_X, type->min_xc, type->max_xc, 0, 0);

	input_set_abs_params(input_dev, ABS_Y, type->min_yc, type->max_yc, 0, 0);

	if (type->max_press)

		input_set_abs_params(input_dev, ABS_PRESSURE, type->min_press,

		                     type->max_press, 0, 0);



	usb_fill_int_urb(usbtouch->irq, usbtouch->udev,

			 usb_rcvintpipe(usbtouch->udev, 0x81),

			 usbtouch->data, type->rept_size,

			 usbtouch_irq, usbtouch, endpoint->bInterval);



	usbtouch->irq->transfer_dma = usbtouch->data_dma;

	usbtouch->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;



	/* device specific init */

	if (type->init) {

		err = type->init(usbtouch);

		if (err) {

			dbg("%s - type->init() failed, err: %d", __FUNCTION__, err);

			goto out_free_buffers;

		}

	}



	err = input_register_device(usbtouch->input);

	if (err) {

		dbg("%s - input_register_device failed, err: %d", __FUNCTION__, err);

		goto out_free_buffers;

	}



	usb_set_intfdata(intf, usbtouch);



	return 0;



out_free_buffers:

	usbtouch_free_buffers(udev, usbtouch);

out_free:

	input_free_device(input_dev);

	kfree(usbtouch);

	return -ENOMEM;

}



static void usbtouch_disconnect(struct usb_interface *intf)

{

	struct usbtouch_usb *usbtouch = usb_get_intfdata(intf);



	dbg("%s - called", __FUNCTION__);



	if (!usbtouch)

		return;



	dbg("%s - usbtouch is initialized, cleaning up", __FUNCTION__);

	usb_set_intfdata(intf, NULL);

	usb_kill_urb(usbtouch->irq);

	input_unregister_device(usbtouch->input);

	usb_free_urb(usbtouch->irq);

	usbtouch_free_buffers(interface_to_usbdev(intf), usbtouch);

	kfree(usbtouch);

}



MODULE_DEVICE_TABLE(usb, usbtouch_devices);



static struct usb_driver usbtouch_driver = {

	.name		= "usbtouchscreen",

	.probe		= usbtouch_probe,

	.disconnect	= usbtouch_disconnect,

	.id_table	= usbtouch_devices,

};



static int __init usbtouch_init(void)

{

	return usb_register(&usbtouch_driver);

}



static void __exit usbtouch_cleanup(void)

{

	usb_deregister(&usbtouch_driver);

}



module_init(usbtouch_init);

module_exit(usbtouch_cleanup);



MODULE_AUTHOR(DRIVER_AUTHOR);

MODULE_DESCRIPTION(DRIVER_DESC);

MODULE_LICENSE("GPL");



MODULE_ALIAS("touchkitusb");

MODULE_ALIAS("itmtouch");

MODULE_ALIAS("mtouchusb");

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