diff options
| author | Roy Yin <yhch@generaltouch.com> | 2010-02-22 07:52:49 +0100 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2010-02-22 08:02:51 +0100 |
| commit | eb083ba260f21ad79e83e1ad05a0d27e93b58c83 (patch) | |
| tree | abc3f6e2da53c02fde3b9eaf2ff0b17e6e685623 /drivers/input/touchscreen/usbtouchscreen.c | |
| parent | Input: polldev can cause crash in case when polling disabled (diff) | |
| download | linux-eb083ba260f21ad79e83e1ad05a0d27e93b58c83.tar.xz linux-eb083ba260f21ad79e83e1ad05a0d27e93b58c83.zip | |
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/input/touchscreen/usbtouchscreen.c')
| -rw-r--r-- | drivers/input/touchscreen/usbtouchscreen.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c index 09a5e7341bd5..5256123a5228 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, }, |