On Sat 2017-02-18 20:17:09, H. Nikolaus Schaller wrote:

quoted

Am 18.02.2017 um 19:08 schrieb Pavel Machek [off-list ref]:

quoted

quoted

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
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