Messages in this thread | | | Date | Mon, 5 Feb 2018 14:49:55 -0800 | From | Dmitry Torokhov <> | Subject | Re: ALPS Trackpoint & pressure |
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On Sun, Feb 04, 2018 at 04:08:39PM +0100, Pali Rohár wrote: > Hi! Now playing again with trackpoint connected to ALPS rushmore > touchpad and I'm seeking a nice feature. Via ALPS PS/2 protocol it > reports pressure of trackpoint. Parser for it is already implemented in > alps.c and value is assigned to variable "z". When I just move > trackpoint z is zero, when I push trackpoint while moving, then z is > number higher, maximally 32. Variable "z" is set, but unused. > > Do we have some input interface which can be used to report this > pressure of trackpoint to userspace? I can use this feature e.g. as > additional button...
We could either do the conversion in kernel and emit BTN_LEFT, or report ABS_PRESSURE and see if userspace will be able to handle REL_X/REL_Y/ABS_PRESSURE device.
Adding Peter.
-- Dmitry
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