Forcepad devices do not have physical buttons underneath the surface and
use F21 to report "clicks" based on touch pressure.
Signed-off-by: Marge Yang <Marge.Yang@tw.synaptics.com>
Link: https://lore.kernel.org/r/20250716033648.1785509-1-marge.yang@tw.synaptics.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
