touchpad fn key fix

touchpad-fix

#!/bin/sh
# toggle touch pad

device=`xinput list --name-only | grep -i touchpad`
isOn=`xinput list-props "$device" | grep -i enabled | tail -c 2`
iconEnabled='input-touchpad-symbolic'
iconDisabled='touchpad-disabled-symbolic'

case "$isOn" in
    0)
        notify-send --icon=$iconEnabled "Touchpad [ON]" "Your touchpad is now enabled"
        xinput set-prop "$device" 'Device Enabled' 1
        ;;
    1)
        notify-send --icon=$iconDisabled "Touchpad [OFF]" "Your touchpad is now disabled"
        xinput set-prop "$device" 'Device Enabled' 0
        ;;
    *)
        notify-send --icon=$iconEnabled --expire-time=10000  "Error: Touchpad device enabled says: $isOn."
        ;;
esac

Thank you a lot!
But I found some strange behavior.
If "Disable touchpad when typing" is checked script did not turn touchpad on.