1 /******************************************************************************
3 * Driver for USB Touchscreens, supporting those devices:
5 * includes eTurboTouch CT-410/510/700
6 * - 3M/Microtouch EX II series
13 * Copyright (C) 2004-2006 by Daniel Ritz <daniel.ritz@gmx.ch>
14 * Copyright (C) by Todd E. Johnson (mtouchusb.c)
16 * This program is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU General Public License as
18 * published by the Free Software Foundation; either version 2 of the
19 * License, or (at your option) any later version.
21 * This program is distributed in the hope that it will be useful, but
22 * WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
24 * General Public License for more details.
26 * You should have received a copy of the GNU General Public License
27 * along with this program; if not, write to the Free Software
28 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
30 * Driver is based on touchkitusb.c
31 * - ITM parts are from itmtouch.c
32 * - 3M parts are from mtouchusb.c
33 * - PanJit parts are from an unmerged driver by Lanslott Gish
34 * - DMC TSC 10/25 are from Holger Schurig, with ideas from an unmerged
35 * driver from Marius Vollmer
37 *****************************************************************************/
41 #include <linux/kernel.h>
42 #include <linux/slab.h>
43 #include <linux/input.h>
44 #include <linux/module.h>
45 #include <linux/init.h>
46 #include <linux/usb.h>
47 #include <linux/usb/input.h>
50 #define DRIVER_VERSION "v0.5"
51 #define DRIVER_AUTHOR "Daniel Ritz <daniel.ritz@gmx.ch>"
52 #define DRIVER_DESC "USB Touchscreen Driver"
55 module_param(swap_xy
, bool, 0644);
56 MODULE_PARM_DESC(swap_xy
, "If set X and Y axes are swapped.");
58 /* device specifc data/functions */
60 struct usbtouch_device_info
{
63 int min_press
, max_press
;
67 void (*process_pkt
) (struct usbtouch_usb
*usbtouch
, unsigned char *pkt
, int len
);
68 int (*get_pkt_len
) (unsigned char *pkt
, int len
);
69 int (*read_data
) (struct usbtouch_usb
*usbtouch
, unsigned char *pkt
);
70 int (*init
) (struct usbtouch_usb
*usbtouch
);
73 #define USBTOUCH_FLG_BUFFER 0x01
76 /* a usbtouch device */
80 unsigned char *buffer
;
83 struct usb_device
*udev
;
84 struct input_dev
*input
;
85 struct usbtouch_device_info
*type
;
94 #if defined(CONFIG_TOUCHSCREEN_USB_EGALAX) || defined(CONFIG_TOUCHSCREEN_USB_ETURBO)
99 static void usbtouch_process_multi(struct usbtouch_usb
*usbtouch
,
100 unsigned char *pkt
, int len
);
115 static struct usb_device_id usbtouch_devices
[] = {
116 #ifdef CONFIG_TOUCHSCREEN_USB_EGALAX
117 {USB_DEVICE(0x3823, 0x0001), .driver_info
= DEVTYPE_EGALAX
},
118 {USB_DEVICE(0x3823, 0x0002), .driver_info
= DEVTYPE_EGALAX
},
119 {USB_DEVICE(0x0123, 0x0001), .driver_info
= DEVTYPE_EGALAX
},
120 {USB_DEVICE(0x0eef, 0x0001), .driver_info
= DEVTYPE_EGALAX
},
121 {USB_DEVICE(0x0eef, 0x0002), .driver_info
= DEVTYPE_EGALAX
},
122 {USB_DEVICE(0x1234, 0x0001), .driver_info
= DEVTYPE_EGALAX
},
123 {USB_DEVICE(0x1234, 0x0002), .driver_info
= DEVTYPE_EGALAX
},
126 #ifdef CONFIG_TOUCHSCREEN_USB_PANJIT
127 {USB_DEVICE(0x134c, 0x0001), .driver_info
= DEVTYPE_PANJIT
},
128 {USB_DEVICE(0x134c, 0x0002), .driver_info
= DEVTYPE_PANJIT
},
129 {USB_DEVICE(0x134c, 0x0003), .driver_info
= DEVTYPE_PANJIT
},
130 {USB_DEVICE(0x134c, 0x0004), .driver_info
= DEVTYPE_PANJIT
},
133 #ifdef CONFIG_TOUCHSCREEN_USB_3M
134 {USB_DEVICE(0x0596, 0x0001), .driver_info
= DEVTYPE_3M
},
137 #ifdef CONFIG_TOUCHSCREEN_USB_ITM
138 {USB_DEVICE(0x0403, 0xf9e9), .driver_info
= DEVTYPE_ITM
},
141 #ifdef CONFIG_TOUCHSCREEN_USB_ETURBO
142 {USB_DEVICE(0x1234, 0x5678), .driver_info
= DEVTYPE_ETURBO
},
145 #ifdef CONFIG_TOUCHSCREEN_USB_GUNZE
146 {USB_DEVICE(0x0637, 0x0001), .driver_info
= DEVTYPE_GUNZE
},
149 #ifdef CONFIG_TOUCHSCREEN_USB_DMC_TSC10
150 {USB_DEVICE(0x0afa, 0x03e8), .driver_info
= DEVTYPE_DMC_TSC10
},
157 /*****************************************************************************
161 #ifdef CONFIG_TOUCHSCREEN_USB_EGALAX
163 #define EGALAX_PKT_TYPE_MASK 0xFE
164 #define EGALAX_PKT_TYPE_REPT 0x80
165 #define EGALAX_PKT_TYPE_DIAG 0x0A
167 static int egalax_read_data(struct usbtouch_usb
*dev
, unsigned char *pkt
)
169 if ((pkt
[0] & EGALAX_PKT_TYPE_MASK
) != EGALAX_PKT_TYPE_REPT
)
172 dev
->x
= ((pkt
[3] & 0x0F) << 7) | (pkt
[4] & 0x7F);
173 dev
->y
= ((pkt
[1] & 0x0F) << 7) | (pkt
[2] & 0x7F);
174 dev
->touch
= pkt
[0] & 0x01;
179 static int egalax_get_pkt_len(unsigned char *buf
, int len
)
181 switch (buf
[0] & EGALAX_PKT_TYPE_MASK
) {
182 case EGALAX_PKT_TYPE_REPT
:
185 case EGALAX_PKT_TYPE_DIAG
:
197 /*****************************************************************************
200 #ifdef CONFIG_TOUCHSCREEN_USB_PANJIT
201 static int panjit_read_data(struct usbtouch_usb
*dev
, unsigned char *pkt
)
203 dev
->x
= ((pkt
[2] & 0x0F) << 8) | pkt
[1];
204 dev
->y
= ((pkt
[4] & 0x0F) << 8) | pkt
[3];
205 dev
->touch
= pkt
[0] & 0x01;
212 /*****************************************************************************
215 #ifdef CONFIG_TOUCHSCREEN_USB_3M
217 #define MTOUCHUSB_ASYNC_REPORT 1
218 #define MTOUCHUSB_RESET 7
219 #define MTOUCHUSB_REQ_CTRLLR_ID 10
221 static int mtouch_read_data(struct usbtouch_usb
*dev
, unsigned char *pkt
)
223 dev
->x
= (pkt
[8] << 8) | pkt
[7];
224 dev
->y
= (pkt
[10] << 8) | pkt
[9];
225 dev
->touch
= (pkt
[2] & 0x40) ? 1 : 0;
230 static int mtouch_init(struct usbtouch_usb
*usbtouch
)
234 ret
= usb_control_msg(usbtouch
->udev
, usb_rcvctrlpipe(usbtouch
->udev
, 0),
236 USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
237 1, 0, NULL
, 0, USB_CTRL_SET_TIMEOUT
);
238 dbg("%s - usb_control_msg - MTOUCHUSB_RESET - bytes|err: %d",
244 for (i
= 0; i
< 3; i
++) {
245 ret
= usb_control_msg(usbtouch
->udev
, usb_rcvctrlpipe(usbtouch
->udev
, 0),
246 MTOUCHUSB_ASYNC_REPORT
,
247 USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
248 1, 1, NULL
, 0, USB_CTRL_SET_TIMEOUT
);
249 dbg("%s - usb_control_msg - MTOUCHUSB_ASYNC_REPORT - bytes|err: %d",
262 /*****************************************************************************
265 #ifdef CONFIG_TOUCHSCREEN_USB_ITM
266 static int itm_read_data(struct usbtouch_usb
*dev
, unsigned char *pkt
)
270 * ITM devices report invalid x/y data if not touched.
271 * if the screen was touched before but is not touched any more
272 * report touch as 0 with the last valid x/y data once. then stop
273 * reporting data until touched again.
275 dev
->press
= ((pkt
[2] & 0x01) << 7) | (pkt
[5] & 0x7F);
277 touch
= ~pkt
[7] & 0x20;
287 dev
->x
= ((pkt
[0] & 0x1F) << 7) | (pkt
[3] & 0x7F);
288 dev
->y
= ((pkt
[1] & 0x1F) << 7) | (pkt
[4] & 0x7F);
296 /*****************************************************************************
299 #ifdef CONFIG_TOUCHSCREEN_USB_ETURBO
300 static int eturbo_read_data(struct usbtouch_usb
*dev
, unsigned char *pkt
)
304 /* packets should start with sync */
305 if (!(pkt
[0] & 0x80))
308 shift
= (6 - (pkt
[0] & 0x03));
309 dev
->x
= ((pkt
[3] << 7) | pkt
[4]) >> shift
;
310 dev
->y
= ((pkt
[1] << 7) | pkt
[2]) >> shift
;
311 dev
->touch
= (pkt
[0] & 0x10) ? 1 : 0;
316 static int eturbo_get_pkt_len(unsigned char *buf
, int len
)
327 /*****************************************************************************
330 #ifdef CONFIG_TOUCHSCREEN_USB_GUNZE
331 static int gunze_read_data(struct usbtouch_usb
*dev
, unsigned char *pkt
)
333 if (!(pkt
[0] & 0x80) || ((pkt
[1] | pkt
[2] | pkt
[3]) & 0x80))
336 dev
->x
= ((pkt
[0] & 0x1F) << 7) | (pkt
[2] & 0x7F);
337 dev
->y
= ((pkt
[1] & 0x1F) << 7) | (pkt
[3] & 0x7F);
338 dev
->touch
= pkt
[0] & 0x20;
344 /*****************************************************************************
347 * Documentation about the controller and it's protocol can be found at
348 * http://www.dmccoltd.com/files/controler/tsc10usb_pi_e.pdf
349 * http://www.dmccoltd.com/files/controler/tsc25_usb_e.pdf
351 #ifdef CONFIG_TOUCHSCREEN_USB_DMC_TSC10
353 /* supported data rates. currently using 130 */
354 #define TSC10_RATE_POINT 0x50
355 #define TSC10_RATE_30 0x40
356 #define TSC10_RATE_50 0x41
357 #define TSC10_RATE_80 0x42
358 #define TSC10_RATE_100 0x43
359 #define TSC10_RATE_130 0x44
360 #define TSC10_RATE_150 0x45
363 #define TSC10_CMD_RESET 0x55
364 #define TSC10_CMD_RATE 0x05
365 #define TSC10_CMD_DATA1 0x01
367 static int dmc_tsc10_init(struct usbtouch_usb
*usbtouch
)
369 struct usb_device
*dev
= usbtouch
->udev
;
371 unsigned char buf
[2];
374 buf
[0] = buf
[1] = 0xFF;
375 ret
= usb_control_msg(dev
, usb_rcvctrlpipe (dev
, 0),
377 USB_DIR_IN
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
378 0, 0, buf
, 2, USB_CTRL_SET_TIMEOUT
);
381 if (buf
[0] != 0x06 || buf
[1] != 0x00)
384 /* set coordinate output rate */
385 buf
[0] = buf
[1] = 0xFF;
386 ret
= usb_control_msg(dev
, usb_rcvctrlpipe (dev
, 0),
388 USB_DIR_IN
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
389 TSC10_RATE_150
, 0, buf
, 2, USB_CTRL_SET_TIMEOUT
);
392 if (buf
[0] != 0x06 || buf
[1] != 0x00)
395 /* start sending data */
396 ret
= usb_control_msg(dev
, usb_rcvctrlpipe (dev
, 0),
398 USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
399 0, 0, NULL
, 0, USB_CTRL_SET_TIMEOUT
);
407 static int dmc_tsc10_read_data(struct usbtouch_usb
*dev
, unsigned char *pkt
)
409 dev
->x
= ((pkt
[2] & 0x03) << 8) | pkt
[1];
410 dev
->y
= ((pkt
[4] & 0x03) << 8) | pkt
[3];
411 dev
->touch
= pkt
[0] & 0x01;
418 /*****************************************************************************
419 * the different device descriptors
421 static struct usbtouch_device_info usbtouch_dev_info
[] = {
422 #ifdef CONFIG_TOUCHSCREEN_USB_EGALAX
429 .flags
= USBTOUCH_FLG_BUFFER
,
430 .process_pkt
= usbtouch_process_multi
,
431 .get_pkt_len
= egalax_get_pkt_len
,
432 .read_data
= egalax_read_data
,
436 #ifdef CONFIG_TOUCHSCREEN_USB_PANJIT
443 .read_data
= panjit_read_data
,
447 #ifdef CONFIG_TOUCHSCREEN_USB_3M
454 .read_data
= mtouch_read_data
,
459 #ifdef CONFIG_TOUCHSCREEN_USB_ITM
467 .read_data
= itm_read_data
,
471 #ifdef CONFIG_TOUCHSCREEN_USB_ETURBO
478 .flags
= USBTOUCH_FLG_BUFFER
,
479 .process_pkt
= usbtouch_process_multi
,
480 .get_pkt_len
= eturbo_get_pkt_len
,
481 .read_data
= eturbo_read_data
,
485 #ifdef CONFIG_TOUCHSCREEN_USB_GUNZE
492 .read_data
= gunze_read_data
,
496 #ifdef CONFIG_TOUCHSCREEN_USB_DMC_TSC10
497 [DEVTYPE_DMC_TSC10
] = {
503 .init
= dmc_tsc10_init
,
504 .read_data
= dmc_tsc10_read_data
,
510 /*****************************************************************************
513 static void usbtouch_process_pkt(struct usbtouch_usb
*usbtouch
,
514 unsigned char *pkt
, int len
)
516 struct usbtouch_device_info
*type
= usbtouch
->type
;
518 if (!type
->read_data(usbtouch
, pkt
))
521 input_report_key(usbtouch
->input
, BTN_TOUCH
, usbtouch
->touch
);
524 input_report_abs(usbtouch
->input
, ABS_X
, usbtouch
->y
);
525 input_report_abs(usbtouch
->input
, ABS_Y
, usbtouch
->x
);
527 input_report_abs(usbtouch
->input
, ABS_X
, usbtouch
->x
);
528 input_report_abs(usbtouch
->input
, ABS_Y
, usbtouch
->y
);
531 input_report_abs(usbtouch
->input
, ABS_PRESSURE
, usbtouch
->press
);
532 input_sync(usbtouch
->input
);
537 static void usbtouch_process_multi(struct usbtouch_usb
*usbtouch
,
538 unsigned char *pkt
, int len
)
540 unsigned char *buffer
;
541 int pkt_len
, pos
, buf_len
, tmp
;
544 if (unlikely(usbtouch
->buf_len
)) {
545 /* try to get size */
546 pkt_len
= usbtouch
->type
->get_pkt_len(
547 usbtouch
->buffer
, usbtouch
->buf_len
);
550 if (unlikely(!pkt_len
))
553 /* need to append -pkt_len bytes before able to get size */
554 if (unlikely(pkt_len
< 0)) {
555 int append
= -pkt_len
;
556 if (unlikely(append
> len
))
558 if (usbtouch
->buf_len
+ append
>= usbtouch
->type
->rept_size
)
560 memcpy(usbtouch
->buffer
+ usbtouch
->buf_len
, pkt
, append
);
561 usbtouch
->buf_len
+= append
;
563 pkt_len
= usbtouch
->type
->get_pkt_len(
564 usbtouch
->buffer
, usbtouch
->buf_len
);
570 tmp
= pkt_len
- usbtouch
->buf_len
;
571 if (usbtouch
->buf_len
+ tmp
>= usbtouch
->type
->rept_size
)
573 memcpy(usbtouch
->buffer
+ usbtouch
->buf_len
, pkt
, tmp
);
574 usbtouch_process_pkt(usbtouch
, usbtouch
->buffer
, pkt_len
);
583 /* loop over the received packet, process */
585 while (pos
< buf_len
) {
587 pkt_len
= usbtouch
->type
->get_pkt_len(buffer
+ pos
, len
);
589 /* unknown packet: drop everything */
590 if (unlikely(!pkt_len
))
593 /* full packet: process */
594 if (likely((pkt_len
> 0) && (pkt_len
<= buf_len
- pos
))) {
595 usbtouch_process_pkt(usbtouch
, buffer
+ pos
, pkt_len
);
597 /* incomplete packet: save in buffer */
598 memcpy(usbtouch
->buffer
, buffer
+ pos
, buf_len
- pos
);
599 usbtouch
->buf_len
= buf_len
- pos
;
606 usbtouch
->buf_len
= 0;
612 static void usbtouch_irq(struct urb
*urb
)
614 struct usbtouch_usb
*usbtouch
= urb
->context
;
617 switch (urb
->status
) {
622 /* this urb is timing out */
623 dbg("%s - urb timed out - was the device unplugged?",
629 /* this urb is terminated, clean up */
630 dbg("%s - urb shutting down with status: %d",
631 __FUNCTION__
, urb
->status
);
634 dbg("%s - nonzero urb status received: %d",
635 __FUNCTION__
, urb
->status
);
639 usbtouch
->type
->process_pkt(usbtouch
, usbtouch
->data
, urb
->actual_length
);
642 retval
= usb_submit_urb(urb
, GFP_ATOMIC
);
644 err("%s - usb_submit_urb failed with result: %d",
645 __FUNCTION__
, retval
);
648 static int usbtouch_open(struct input_dev
*input
)
650 struct usbtouch_usb
*usbtouch
= input_get_drvdata(input
);
652 usbtouch
->irq
->dev
= usbtouch
->udev
;
654 if (usb_submit_urb(usbtouch
->irq
, GFP_KERNEL
))
660 static void usbtouch_close(struct input_dev
*input
)
662 struct usbtouch_usb
*usbtouch
= input_get_drvdata(input
);
664 usb_kill_urb(usbtouch
->irq
);
668 static void usbtouch_free_buffers(struct usb_device
*udev
,
669 struct usbtouch_usb
*usbtouch
)
671 usb_buffer_free(udev
, usbtouch
->type
->rept_size
,
672 usbtouch
->data
, usbtouch
->data_dma
);
673 kfree(usbtouch
->buffer
);
677 static int usbtouch_probe(struct usb_interface
*intf
,
678 const struct usb_device_id
*id
)
680 struct usbtouch_usb
*usbtouch
;
681 struct input_dev
*input_dev
;
682 struct usb_host_interface
*interface
;
683 struct usb_endpoint_descriptor
*endpoint
;
684 struct usb_device
*udev
= interface_to_usbdev(intf
);
685 struct usbtouch_device_info
*type
;
688 interface
= intf
->cur_altsetting
;
689 endpoint
= &interface
->endpoint
[0].desc
;
691 usbtouch
= kzalloc(sizeof(struct usbtouch_usb
), GFP_KERNEL
);
692 input_dev
= input_allocate_device();
693 if (!usbtouch
|| !input_dev
)
696 type
= &usbtouch_dev_info
[id
->driver_info
];
697 usbtouch
->type
= type
;
698 if (!type
->process_pkt
)
699 type
->process_pkt
= usbtouch_process_pkt
;
701 usbtouch
->data
= usb_buffer_alloc(udev
, type
->rept_size
,
702 GFP_KERNEL
, &usbtouch
->data_dma
);
706 if (type
->flags
& USBTOUCH_FLG_BUFFER
) {
707 usbtouch
->buffer
= kmalloc(type
->rept_size
, GFP_KERNEL
);
708 if (!usbtouch
->buffer
)
709 goto out_free_buffers
;
712 usbtouch
->irq
= usb_alloc_urb(0, GFP_KERNEL
);
713 if (!usbtouch
->irq
) {
714 dbg("%s - usb_alloc_urb failed: usbtouch->irq", __FUNCTION__
);
715 goto out_free_buffers
;
718 usbtouch
->udev
= udev
;
719 usbtouch
->input
= input_dev
;
721 if (udev
->manufacturer
)
722 strlcpy(usbtouch
->name
, udev
->manufacturer
, sizeof(usbtouch
->name
));
725 if (udev
->manufacturer
)
726 strlcat(usbtouch
->name
, " ", sizeof(usbtouch
->name
));
727 strlcat(usbtouch
->name
, udev
->product
, sizeof(usbtouch
->name
));
730 if (!strlen(usbtouch
->name
))
731 snprintf(usbtouch
->name
, sizeof(usbtouch
->name
),
732 "USB Touchscreen %04x:%04x",
733 le16_to_cpu(udev
->descriptor
.idVendor
),
734 le16_to_cpu(udev
->descriptor
.idProduct
));
736 usb_make_path(udev
, usbtouch
->phys
, sizeof(usbtouch
->phys
));
737 strlcpy(usbtouch
->phys
, "/input0", sizeof(usbtouch
->phys
));
739 input_dev
->name
= usbtouch
->name
;
740 input_dev
->phys
= usbtouch
->phys
;
741 usb_to_input_id(udev
, &input_dev
->id
);
742 input_dev
->dev
.parent
= &intf
->dev
;
744 input_set_drvdata(input_dev
, usbtouch
);
746 input_dev
->open
= usbtouch_open
;
747 input_dev
->close
= usbtouch_close
;
749 input_dev
->evbit
[0] = BIT(EV_KEY
) | BIT(EV_ABS
);
750 input_dev
->keybit
[LONG(BTN_TOUCH
)] = BIT(BTN_TOUCH
);
751 input_set_abs_params(input_dev
, ABS_X
, type
->min_xc
, type
->max_xc
, 0, 0);
752 input_set_abs_params(input_dev
, ABS_Y
, type
->min_yc
, type
->max_yc
, 0, 0);
754 input_set_abs_params(input_dev
, ABS_PRESSURE
, type
->min_press
,
755 type
->max_press
, 0, 0);
757 usb_fill_int_urb(usbtouch
->irq
, usbtouch
->udev
,
758 usb_rcvintpipe(usbtouch
->udev
, endpoint
->bEndpointAddress
),
759 usbtouch
->data
, type
->rept_size
,
760 usbtouch_irq
, usbtouch
, endpoint
->bInterval
);
762 usbtouch
->irq
->dev
= usbtouch
->udev
;
763 usbtouch
->irq
->transfer_dma
= usbtouch
->data_dma
;
764 usbtouch
->irq
->transfer_flags
|= URB_NO_TRANSFER_DMA_MAP
;
766 /* device specific init */
768 err
= type
->init(usbtouch
);
770 dbg("%s - type->init() failed, err: %d", __FUNCTION__
, err
);
771 goto out_free_buffers
;
775 err
= input_register_device(usbtouch
->input
);
777 dbg("%s - input_register_device failed, err: %d", __FUNCTION__
, err
);
778 goto out_free_buffers
;
781 usb_set_intfdata(intf
, usbtouch
);
786 usbtouch_free_buffers(udev
, usbtouch
);
788 input_free_device(input_dev
);
793 static void usbtouch_disconnect(struct usb_interface
*intf
)
795 struct usbtouch_usb
*usbtouch
= usb_get_intfdata(intf
);
797 dbg("%s - called", __FUNCTION__
);
802 dbg("%s - usbtouch is initialized, cleaning up", __FUNCTION__
);
803 usb_set_intfdata(intf
, NULL
);
804 usb_kill_urb(usbtouch
->irq
);
805 input_unregister_device(usbtouch
->input
);
806 usb_free_urb(usbtouch
->irq
);
807 usbtouch_free_buffers(interface_to_usbdev(intf
), usbtouch
);
811 MODULE_DEVICE_TABLE(usb
, usbtouch_devices
);
813 static struct usb_driver usbtouch_driver
= {
814 .name
= "usbtouchscreen",
815 .probe
= usbtouch_probe
,
816 .disconnect
= usbtouch_disconnect
,
817 .id_table
= usbtouch_devices
,
820 static int __init
usbtouch_init(void)
822 return usb_register(&usbtouch_driver
);
825 static void __exit
usbtouch_cleanup(void)
827 usb_deregister(&usbtouch_driver
);
830 module_init(usbtouch_init
);
831 module_exit(usbtouch_cleanup
);
833 MODULE_AUTHOR(DRIVER_AUTHOR
);
834 MODULE_DESCRIPTION(DRIVER_DESC
);
835 MODULE_LICENSE("GPL");
837 MODULE_ALIAS("touchkitusb");
838 MODULE_ALIAS("itmtouch");
839 MODULE_ALIAS("mtouchusb");