On Sun, May 20, 2012 at 6:43 PM, <chris@xxxxxxxxxxxxxx> wrote:
> From: Chris Bagwell <chris@xxxxxxxxxxxxxx>
>
> Bamboo One's with ID of 0x6a and 0x6b were added with correct
> indication of 1024 pressure levels but the Graphire packet routine
> was only looking at 9 bits. Increased to 10 bits.
>
> This bug caused these devices to roll over to zero pressure at half
> way mark.
>
> The other devices using this routine only support 256 or 512 range
> and look to fix unused bits at zero.
>
> Signed-off-by: Chris Bagwell <chris@xxxxxxxxxxxxxx>
> Reported-by: Tushant Mirchandani <tushantin@xxxxxxxxx>
Reviewed-by: Ping Cheng <pingc@xxxxxxxxx>
Ping
> ---
> 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 004bc1b..869e057 100644
> --- a/drivers/input/tablet/wacom_wac.c
> +++ b/drivers/input/tablet/wacom_wac.c
> @@ -248,7 +248,7 @@ static int wacom_graphire_irq(struct wacom_wac *wacom)
> input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2]));
> input_report_abs(input, ABS_Y, le16_to_cpup((__le16 *)&data[4]));
> if (wacom->tool[0] != BTN_TOOL_MOUSE) {
> - input_report_abs(input, ABS_PRESSURE, data[6] | ((data[7] & 0x01) << 8));
> + input_report_abs(input, ABS_PRESSURE, data[6] | ((data[7] & 0x03) << 8));
> input_report_key(input, BTN_TOUCH, data[1] & 0x01);
> input_report_key(input, BTN_STYLUS, data[1] & 0x02);
> input_report_key(input, BTN_STYLUS2, data[1] & 0x04);
> --
> 1.7.10.1
>
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