On Thu, Jan 30, 2014 at 10:48 AM, Jason Gerecke <[email protected]> wrote:
> Some tablet PC sensors (e.g. the 0xEC found in the Thinkpad
> Yoga) report more than 256 pressure levels and will experience
> wraparound unless the full range is read.
>
> Signed-off-by: Jason Gerecke <[email protected]>
> ---
> drivers/input/tablet/wacom_wac.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/input/tablet/wacom_wac.c
> b/drivers/input/tablet/wacom_wac.c
> index 9ff5613..ae1437b 100644
> --- a/drivers/input/tablet/wacom_wac.c
> +++ b/drivers/input/tablet/wacom_wac.c
> @@ -1087,7 +1087,7 @@ static int wacom_tpc_pen(struct wacom_wac *wacom)
> input_report_key(input, BTN_STYLUS2, data[1] & 0x10);
> input_report_abs(input, ABS_X, le16_to_cpup((__le16
> *)&data[2]));
> input_report_abs(input, ABS_Y, le16_to_cpup((__le16
> *)&data[4]));
> - input_report_abs(input, ABS_PRESSURE, ((data[7] & 0x01) << 8)
> | data[6]);
> + input_report_abs(input, ABS_PRESSURE, ((data[7] & 0x03) << 8)
> | data[6]);
> input_report_key(input, BTN_TOUCH, data[1] & 0x05);
> input_report_key(input, wacom->tool[0], prox);
> return 1;
> --
> 1.8.5.3
>
Tested-by: Aaron Skomra <[email protected]>
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