Re: [PATCH] input: mt: Add hovering distance axis

From: Chase Douglas
Date: Wed Dec 08 2010 - 12:46:29 EST


On 12/07/2010 12:27 AM, Henrik Rydberg wrote:
> Touch devices capable of hovering, i.e., fingers detected a distance
> from the surface, are not supported by the current input MT
> protocol. This patch adds ABS_MT_DISTANCE, which may be used to
> indicate the distance between the contact and the surface.

Have you given thought to calling it ABS_MT_Z instead? I have no real
problem with ABS_MT_DISTANCE per se, but ABS_MT_Z is more clearly
defined in my head. If I was new to MT development I may wonder if
ABS_MT_DISTANCE had anything to do with distance between points or some
other object.

-- Chase
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