Re: [PATCH v4 3/5] Input: hynitron-cst816x: release gesture keys

["Oleh Kuzhylnyi" <kuzhylol@gmail.com>]

On Mon Oct 5, 2026 at 11:11 PM CEST, Daniel Golle wrote:
> The gesture key is reported with the value of the touch flag, so it
> stays pressed once the controller stops reporting the gesture code
> while the finger is still down. Report the press on its own and
> release the keys the input core still holds down on the first report
> that carries no gesture code. Report a key only for the gesture codes
> the binding names: the controller also sends codes such as single
> click, and the index fallback aliased those onto the long-press
> keycode. Keycodes above KEY_MAX are rejected, as that release looks
> the key state up in the input core's key bitmap.
>
> Fixes: c87a819bec86 ("Input: add driver for Hynitron CST816x series")
> Signed-off-by: Daniel Golle <daniel@makrotopia.org>
> ---
> v4:
> - map only the documented gesture codes to keys, as single click
>   aliased onto the long-press keycode (Oleh Kuzhylnyi)
> - read each keycode once in the release loop, so the key it tests is
>   the key it releases (Sashiko AI review)
> v2:
> - reject keycodes above KEY_MAX and publish keycodemax only once the
>   whole array validates (Sashiko AI review)
>
>  drivers/input/touchscreen/hynitron-cst816x.c | 87 +++++++++++++-------
>  1 file changed, 55 insertions(+), 32 deletions(-)
>

Tested on Raspberry Pi 4B with CST816S panel.
Reported coordinates and gestures are valid.

Thank you!

Tested-by: Oleh Kuzhylnyi <kuzhylol@gmail.com>

Best regards,
Oleh Kuzhylnyi