On Wed, Jan 20, 2010 at 11:03 AM, Jason Childs <
obliv...@users.sourceforge.net> wrote:
> Ping,
>
> Quick question on the use of BTN_TOUCH in the kernel driver. Does this have
> any use I'm not aware of? It doesn't appear to be used in the X driver I'd
> like to bring the touch nomenclature inline with the synaptics use of the
> BTN_FINGER/BTN_DOUBLETAP/BTN_TRIPLETAP for one/two/three finger events and
> use BTN_TOUCH as the pad interface id.
>
You are right on the fact that BTN_TOUCH is not used in the X driver. It is
there for default console operation and applications that are running
without X server. As you know we use pressure to decide if the tool is
touching the tablet or not before touch device comes to this world.
I have considered using BTN_TOUCH exactly the way you are thinking. But it
was rejected for the reason described above. So, I am afraid we can not use
it as the pad ID. It would break the existing dependence on both BTN_TOUCH
and BTN_FINGER for some apps.
Ping
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