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Input: usbtouchscreen - extend coordinate range for Generaltouch devices

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Generaltouch protocol allows for coordinates in [0, 0xffff] range and
there are devices reporting coordinates as high as 0x7fff so let's update
the driver to reflect that.

Signed-off-by: Roy Yin <yhch@generaltouch.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Roy Yin 2010-02-21 22:52:49 -08:00 committed by Dmitry Torokhov
parent d9c4f84699
commit eb083ba260
1 changed files with 4 additions and 4 deletions
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8
drivers/input/touchscreen/usbtouchscreen.c
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@ -618,8 +618,8 @@ static int idealtek_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
#ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH
static int general_touch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
{
dev->x = ((pkt[2] & 0x0F) << 8) | pkt[1] ;
dev->y = ((pkt[4] & 0x0F) << 8) | pkt[3] ;
dev->x = (pkt[2] << 8) | pkt[1];
dev->y = (pkt[4] << 8) | pkt[3];
dev->press = pkt[5] & 0xff;
dev->touch = pkt[0] & 0x01;
@ -809,9 +809,9 @@ static struct usbtouch_device_info usbtouch_dev_info[] = {
#ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH
[DEVTYPE_GENERAL_TOUCH] = {
.min_xc = 0x0,
.max_xc = 0x0500,
.max_xc = 0x7fff,
.min_yc = 0x0,
.max_yc = 0x0500,
.max_yc = 0x7fff,
.rept_size = 7,
.read_data = general_touch_read_data,
},