Klipad50 DTB fix

Contents:


As the special DTB file for the Klipad50 is not part of the current Armbian images, it will be overwritten if you install an updated dtb-package.
To work around that, I’ve added a dpkg hook, which reinstalls the special DTB whenever a dtb-packge installation/removal is detected.
(Idea based on https://askubuntu.com/questions/63717/execute-command-after-dpkg-installation)

You can download and install the Klipad50-dtb-fix with following commands:

wget https://torte71.github.io/InsideSovolKlipperScreen/files/klipad50-dtb-fix.deb
sudo dpkg -i klipad50-dtb-fix.deb

/etc/apt/apt.conf.d/90dpkg_post_invoke_klipad50

DPkg::Post-Invoke { "/usr/local/bin/klipad50-dtb-fix/dpkg_post_invoke_klipad50.sh"; }

/usr/local/bin/klipad50-dtb-fix/dpkg_post_invoke_klipad50.sh

#!/bin/bash
APTPID=$( ps -ho ppid "${PPID}" )
APTCMD=$( ps -ho args ${APTPID} )
DTBDIR=/boot/dtb/rockchip
DTBFILE=$DTBDIR/rk3328-mkspi.dtb
DTBKLIPAD=/usr/local/bin/klipad50-dtb-fix/rk3328-mkspi-klipad50.dtb

if echo $APTCMD|grep -q " \(install\|purge\|autopurge\|remove\|autoremove\) .* linux-dtb-" ; then
        echo Replacing DTB file
        [ -e $DTBFILE ] && mv $DTBFILE $DTBFILE.$(date +"%y%m%d_%H%M%S")
        cp $DTBKLIPAD $DTBFILE
fi