On Thu, Dec 09, 2010 at 02:12:08AM +0100, Henrik Rydberg wrote: > >>> > > >>> Is it assumed that the envelop has only two touches comprising it? Or is > >>> it any number of touches? If it's any number of touches, how does one > >>> know how many touches it is? > >> > >> Those are good questions. Specifying how many touches are in the > >> envelop makes sense. It also covers rectangle as a special case of > >> envelop. > > > > I have a feeling that trying to accomodate non-rectangular, more than 2 > > point shapes without using native MT data is over-engineering the > > problem... Do we have examples other than older generation Elantechs and > > Synaptics that need envelope notion? > > > > > Those are the ones targeted so far. Maybe appletouch could be added to the list > as well. I imagine all drivers will end up using zero, one and two envelope points. Even ones that fully support independent finger tracking? -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
