Script to monitor iio-sensor-proxy output and rotate the Thinkpad X1 Yoga display/touch mask/stylus mask based on that info.

autorotation.sh

#!/bin/bash

monitor-sensor --accel | while read line
orientation="normal"
rotate="none"
do
    if [[ $line =~ .*right.* ]]; then   
        orientation="right"
        rotate="cw"
    elif [[ $line =~ .*left.* ]]; then   
        orientation="left"
        rotate="ccw"
    elif [[ $line =~ .*bottom.* ]]; then   
        orientation="inverted"
        rotate="half"
    elif [[ $line =~ .*normal.* ]]; then   
        orientation="normal"
        rotate="none"
    fi

    # device Id 9 is the Touch screen
    xsetwacom --set 9 Rotate ${rotate}
    # devie Id 10 is the Stylus
    xsetwacom --set 10 Rotate ${rotate}
    # then the frame itself
    xrandr -o ${orientation}
    # better sleep a bit to not clog the CPU just for this
    # Would be nice to actually poll for changes in the sensor device
    sleep 3
done