Author Topic: Archlinuxarm On C3x00  (Read 51001 times)


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Re: Archlinuxarm On C3x00
« Reply #375 on: January 30, 2021, 08:11:18 am »
TOUCHSCREEN : I guess we need to port the touch screen calibration tool from pdaxroom. It was outdated back then already, maybe there is another way to calibrate now.

I am working with my old Gentoo 2010 stage4-armv5tel-softfloat-gnueabi, and I have recently developed a raw and wield application that directly access /dev/input/event1 in order to extract (x,y) points from the touchscreen.

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/dev/input/event1 <---------------- I am using this, at the low level

Coordinates are so noisy that I added an iterative mean-value filter to have more stable values.

I don't anything about the calibration tool, never used it, but yesterday I added this to my overlay

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x11-libs/tslib v1.0

SDL-v1 can be compiled with support tslib, and tslib comes with some applications

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/usr/bin/ts_calibrate <---------------- this one looks interesting