Date: Mon, 13 Jun 2016 01:17:24 +0100
From: =?utf-8?Q?Daniel_B=C3=BCnzli?= <daniel.buenzli@erratique.ch>
To: alpine-devel@lists.alpinelinux.org
Message-ID: <65606478DCB34AB5A072F26424607582@erratique.ch>
Subject: [alpine-devel] rpi, overlays and touchscreen
Precedence: list
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

Hello,  

I sent this to alpine-user a few days ago without much luck so I'm trying my chance here.

I have been trying to use alpine linux on a raspberry pi b+ with the raspberry pi touchscreen. While the screen itself is working out of the box I can't manage to get the touchscreen to work, namely I do no get anything in /dev/input/ and the rpi-ft5406 kernel module is no loaded. The same hardware configuration does however work on raspbian. Here are a few things I tried: 

1) Directly tried to modprobe rpi_ft5406 evdev. Nothing happens and dmesg doesn't move. 
2) Tried to install the touchscreen overlay [1] on the sdcard in overlays/ and add dtoverlay=rpi-ft5406 to usercfg.txt 
3) Tried to dynamically load the same overlay via the dtoverlay tool (available through the raspberry package): 
dtoverlay -d /media/mmcblk0p1/overlays/ rpi-ft5406 
cp: can't create '/sys/kernel/config/device-tree/overlays/0_rpi-ft5406/dtbo': File exists 
* Failed to apply overlay '0_rpi-ft5406' 

(The mentioned file does not exist) 

In all these cases nothing happens and `dmesg | grep -i ft5406` is empty. 

Anybody has a hint ? 

Best, 

Daniel 

[1] 
https://github.com/raspberrypi/firmware/blob/master/boot/overlays/rpi-ft5406.dtbo




---
Unsubscribe:  alpine-devel+unsubscribe@lists.alpinelinux.org
Help:         alpine-devel+help@lists.alpinelinux.org
---