On Sat 2017-02-18 20:17:09, H. Nikolaus Schaller wrote: > > > Am 18.02.2017 um 19:08 schrieb Pavel Machek <pavel@xxxxxx>: > > > >>> And I agree that kernel should _not_ attempt rescaling itself, as it > >>> would lose precision. > >> > >> With an almost 1:1 mapping you won't loose precision. > > > > How do you propose to do that? > > something like > > xinput --set-prop --type=float "TSC200X touchscreen" "Coordinate Transformation Matrix" 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.00 > > but I think it is the default of X11 if you use no coordinate transformation at all. > And having the kernel to properly scale from ADC values to screen coordinates. > No. How do you propose doing rescaling in the kernel without loosing precision? Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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