A shell script to turn on the Chromebook's Touchpad

tpon.sh

### Script to turn ON the Trackpad device
#DEBUG=''
[[ -n "$DEBUG" ]] && set -x
TP=''
#VERBOSE=''

## Get Trackpad ID number from Crosh
#+ Write a custom crosh script to get the trackpad id number
echo "crosh <<ENDCROSH
inputcontrol --names
exit
ENDCROSH" 2>&1 >/tmp/cr-gettpid.sh

#+ Run the custom crosh script to get the trackpad id number
sh /tmp/cr-gettpid.sh 2>&1 >/tmp/tp.id
TP=`grep -i trackpad /tmp/tp.id | cut -d : -f1`
[[ -n "$VERBOSE" ]] && echo -n "Trackpad ID is $TP"

## Write a custom crosh script to turn off the trackpad
echo "crosh <<ENDCROSH
inputcontrol --id=$TP 'Device Enabled'=1
exit
ENDCROSH" 2>&1 >/tmp/cr-tpon.sh

## Now turn ON the trackpad
sh /tmp/cr-tpon.sh 2>&1 >/dev/null

[[ -n "$VERBOSE" ]] && echo " and is ON now..."
[[ -n "$DEBUG" ]] && set -x