Add

overlay/usr/bin/calibration-helper

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+set -e
+
+SYSPATH="$1"
+MATRIX="$2 $3 $4 $5 $6 $7"
+
+echo "$1 $2 $3 $4 $5 $6 $7" > /root/tcc
+
+DEV_PATH=$(udevadm info $SYSPATH --query=property | awk -- 'BEGIN { FS="=" } { if ($1 == "DEVPATH") { print $2; exit } }')
+
+echo "$DEV_PATH"
+
+[ -z "$DEV_PATH" ] && exit 1
+
+echo "ACTION!=\"remove\", SUBSYSTEM==\"input\", DEVPATH==\"$DEV_PATH\", ENV{ID_INPUT_TOUCHSCREEN}==\"1\", ENV{LIBINPUT_CALIBRATION_MATRIX}=\"$MATRIX\"" > /etc/udev/rules.d/99-touchscreen-calibration.rules

overlay/usr/bin/launch-calibration

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+DEV_PATH="/sys"$(udevadm info /dev/input/by-path/platform-fe050000.spi-cs-1-event --query=property |\
+awk -- 'BEGIN { FS="=" } { if ($1 == "DEVPATH") { print $2; exit } }')
+weston-touch-calibrator "$DEV_PATH"