Messages in this thread | | | Date | Sat, 14 Jun 2003 00:08:10 +0200 | From | Vojtech Pavlik <> | Subject | Re: [PATCH] Synaptics TouchPad driver for 2.5.70 |
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On Fri, Jun 13, 2003 at 11:15:57PM +0200, Peter Osterlund wrote: > Vojtech Pavlik <vojtech@ucw.cz> writes: > > > 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. > > Peter Berg Larsen suggested in a private email that we shouldn't > export W directly, because it is too synaptics specific. Better split > it in "number of fingers" and "finger width", so that other touchpads > could use the same format. > > What do we call these things? ABS_FINGER_WIDTH and ABS_NR_FINGERS > maybe?
Could work. Or as James Simmons suggested ABS_AREA.
-- Vojtech Pavlik SuSE Labs, SuSE CR - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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