ASUS T100HAN Screen / Display + Touch auto rotate

asus_t100han_auto_rotate.sh

#!/bin/bash

xinput set-prop "SIS0457:00 0457:1133" "Coordinate Transformation Matrix" 0 -1 1 1 0 0 0 0 1
xinput set-prop "Asus TouchPad" "Coordinate Transformation Matrix" 1 0 0 0 1 0 0 0 1

while true ; do
    xrandrout="$(xrandr)"
    x=$(cat /sys/bus/iio/devices/iio\:device0/in_accel_x_raw)
    y=$(cat /sys/bus/iio/devices/iio\:device0/in_accel_y_raw)
    z=$(cat /sys/bus/iio/devices/iio\:device0/in_accel_z_raw)
    rotate=99

    if [ $x -le -499000 ] ; then
	    rotate=3
    fi

    if [ $x -ge 499000 ] ; then
	    rotate=1
    fi

    if [ $rotate = 99 ] ; then
        if [ $y -le -499000 ] ; then
                rotate=0
        fi

        if [ $y -ge 499000 ] ; then
                rotate=2
        fi
    fi

    if [ $rotate = 99 ] ; then
	    rotate=1
    fi

    lrotate=$(echo $xrandrout | grep "left (")
    rrotate=$(echo $xrandrout | grep "right (")
    irotate=$(echo $xrandrout | grep "inverted (")

    if [ "$lrotate" != '' ] ; then
	    crotate=1
    else
	    if [ "$rrotate" != '' ] ; then
            crotate=3
        else
            if [ "$irotate" != '' ] ; then
                crotate=2
            else
                crotate=0
            fi
        fi
    fi

    if [ $crotate != $rotate ] ; then
	xrandr -o $(( rotate * 1 ))
	    case $rotate in
            0 ) xinput set-prop "SIS0457:00 0457:1133" "Coordinate Transformation Matrix" 1 0 0 0 1 0 0 0 1;;
            1 ) xinput set-prop "SIS0457:00 0457:1133" "Coordinate Transformation Matrix" 0 -1 1 1 0 0 0 0 1;;
            2 ) xinput set-prop "SIS0457:00 0457:1133" "Coordinate Transformation Matrix" -1 0 1 0 -1 1 0 0 1;;
            3 ) xinput set-prop "SIS0457:00 0457:1133" "Coordinate Transformation Matrix" 0 1 0 -1 0 1 0 0 1;;
	    esac
	    case $rotate in
            1 ) xinput set-prop "Asus TouchPad" "Coordinate Transformation Matrix" 1 0 0 0 1 0 0 0 1;;
            0 ) xinput set-prop "Asus TouchPad" "Coordinate Transformation Matrix" 0 -1 1 1 0 0 0 0 1;;
            3 ) xinput set-prop "Asus TouchPad" "Coordinate Transformation Matrix" -1 0 1 0 -1 1 0 0 1;;
            2 ) xinput set-prop "Asus TouchPad" "Coordinate Transformation Matrix" 0 1 0 -1 0 1 0 0 1;;
        esac
    fi

    sleep 3
done

ok it seems that when the tablet is flat it likes to go into landscape mode when I want it in portrait. Also, any chance for keyboard detection?