Re: [PATCH] Synaptics TouchPad driver for 2.5.70

Vojtech Pavlik
2003-06-11T18:20:30Z

On Wed, Jun 11, 2003 at 08:16:13PM +0200, Peter Osterlund wrote:

> The w value is somewhat special and not really a real axis. According
> to the Synaptics TouchPad Interfacing Guide
> (http://www.synaptics.com/decaf/utilities/ACF126.pdf), W is defined as
> follows:
>
> Value Needed capability Interpretation
> W = 0 capMultiFinger Two fingers on the pad.
> W = 1 capMultiFinger Three or more fingers on the pad.
> W = 2 capPen Pen (instead of finger) on the pad.
> W = 3 Reserved.
> W = 4-7 capPalmDetect Finger of normal width.
> W = 8-14 capPalmDetect Very wide finger or palm.
> W = 15 capPalmDetect Maximum reportable width; extremely
> wide contact.
>
> Is there a better way than using ABS_MISC to pass the W information to
> user space?

We should probably add an EV_MSC, MSC_GESTURE event type for this.
That'll be the cleanest solution.

--
Vojtech Pavlik
SuSE Labs, SuSE CR