From: Daniel Ritz Date: Wed, 29 Mar 2006 20:41:07 +0000 (+0200) Subject: [PATCH] USB: usbtouchscreen: unified USB touchscreen driver X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1d3e20236d7a5678d44602171bbd153c57c8c4bc;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git [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: Daniel Ritz Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/input/Kconfig b/drivers/usb/input/Kconfig index 5246b35301de..83b90be7fa08 100644 --- a/drivers/usb/input/Kconfig +++ b/drivers/usb/input/Kconfig @@ -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 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. diff --git a/drivers/usb/input/Makefile b/drivers/usb/input/Makefile index d512d9f488fe..764114529c56 100644 --- a/drivers/usb/input/Makefile +++ b/drivers/usb/input/Makefile @@ -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 diff --git a/drivers/usb/input/hid-core.c b/drivers/usb/input/hid-core.c index d4bf1701046b..1d979d6e0c89 100644 --- a/drivers/usb/input/hid-core.c +++ b/drivers/usb/input/hid-core.c @@ -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 } }; diff --git a/drivers/usb/input/usbtouchscreen.c b/drivers/usb/input/usbtouchscreen.c new file mode 100644 index 000000000000..e9a07c1e905b --- /dev/null +++ b/drivers/usb/input/usbtouchscreen.c @@ -0,0 +1,605 @@ +/****************************************************************************** + * usbtouchscreen.c + * Driver for USB Touchscreens, supporting those devices: + * - eGalax Touchkit + * - 3M/Microtouch + * - ITM + * - PanJit TouchSet + * + * Copyright (C) 2004-2006 by Daniel Ritz + * 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 +#include +#include +#include +#include +#include +#include +#include + + +#define DRIVER_VERSION "v0.3" +#define DRIVER_AUTHOR "Daniel Ritz " +#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");