notify 100 {
	match "system" "ACPI";
	match "subsystem" "IBM";
	action "v=$(/sbin/sysctl -n hw.psm.synaptics.touchpad_off); if [ $v -eq 1 ]; then v=0; else v=1; fi; /sbin/sysctl -w hw.psm.synaptics.touchpad_off=$1";
}