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authorRoy Yin <yhch@generaltouch.com>2010-02-21 22:52:49 -0800
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2010-02-21 23:02:51 -0800
commiteb083ba260f21ad79e83e1ad05a0d27e93b58c83 (patch)
treeabc3f6e2da53c02fde3b9eaf2ff0b17e6e685623 /drivers
parentd9c4f846997c6d37e4f56907d93f1be022c17c6b (diff)
Input: usbtouchscreen - extend coordinate range for Generaltouch devices
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/input/touchscreen/usbtouchscreen.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index 09a5e7341bd..5256123a522 100644
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -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,
},