piTFT 2.8 Capacitive TS on Arch Linux & Raspberry PI 2

[knocken]

Hi dear pis,

I'm using a Raspberry PI is 2 with Arch Linux and notro firmware.

I was using a resistive TFT touchscreen and it was working fine. I thought that by changing the overlay and replacing stmpe-ts by ft6x06_ts in my configs the capacitive touchscreen would work too. Nevertheless, it didn't.

By doing some research I figured out that only adafruit guys support it, but by late October 2015 it was supported everywhere (https://github.com/raspberrypi/linux/issues/1050) starting from linux kernel 4.1 and notro included it in his firmware.

I upgraded using rpi-update to 4.1.20-v7+ (20 of march 2016) and it does have updated overlays and modules. However instead of ft6x06_ts (FT6206) it has FT6236.

The FT6236 didn't work well as xinput says unable to find device ft6236 and the TS didn't work at all. I tried then to compile ft6x06_ts and insert it (even if I know that notro overlays use ft6236) but in vain because I couldn't find the right headers for ARCH-4.1.20-v7+. Using this ones (ARCH-4.1.20) I got insertion errors; I tried also to use the right ones from debian repository but couldn't succeed to extract them correctly (I got compilation errors).

Am I doing something wrong ? notro firmware is supposed to work out of the box !

[sdra]

Hi knocken,

did you find a solution to your problem? I'm also struggling with the ft6236 driver,
but using buildroot. Here you find a description of my problem:
viewtopic.php?f=100&t=150295

Cheers!

[knocken]

I didn't, I went back to raspbian :/