Re: [PATCH 3/3] HID: wacom: generic: support touch on/off softkey

On Tue, 2017-02-14 at 21:27 -0800, Ping Cheng wrote:

Wacom Cintiq Pro has a softkey to turn touch on/off. Since it is
a softkey, hardware/firmware still reports touch events no matter
what state the softkey is. We need to ignore touch events when
the key is in off mode.

Why can't this simply be reported to user-space to handle? This would
allow an OSD popping up. Implementing everything in the driver means
that we're setting ourselves up for "fat finger" bug reports where the
user doesn't know that they disabled the tablet, as there would be no
notification of the change.