On Wed, Apr 22, 2015 at 11:45:08AM -0400, Benjamin Tissoires wrote:
> When the v3 hardware sees more than one finger, it uses
> the semi-mt protocol to report the touches. However, it
> currently works when num_fingers is 0, 1 or 2, but when
> it is 3 and above, it sends only 1 finger as if num_fingers
> was 1.
>
> This confuses userspace which knows how to deal with extra
> fingers when all the slots are used, but not when some are
> missing.
>
> Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=90101
>
> CC: [email protected]
>
> Signed-off-by: Benjamin Tissoires <[email protected]>
Applied, thank you.
> ---
> drivers/input/mouse/elantech.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
> index 991dc6b..79363b6 100644
> --- a/drivers/input/mouse/elantech.c
> +++ b/drivers/input/mouse/elantech.c
> @@ -315,7 +315,7 @@ static void elantech_report_semi_mt_data(struct input_dev
> *dev,
> unsigned int x2, unsigned int y2)
> {
> elantech_set_slot(dev, 0, num_fingers != 0, x1, y1);
> - elantech_set_slot(dev, 1, num_fingers == 2, x2, y2);
> + elantech_set_slot(dev, 1, num_fingers >= 2, x2, y2);
> }
>
> /*
> --
> 2.1.0
>
--
Dmitry
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