show_usage () {
echo "Usage: $SCRIPTNAME -f frequency pattern"
echo "Transmit an infrared pattern. The pattern is specified in comma-separated on/off intervals, such as '20,50,20,30'. Only patterns shorter than 2 seconds will be transmitted."
show_usage () {
echo "Usage: $SCRIPTNAME -f frequency pattern"
echo "Transmit an infrared pattern. The pattern is specified in comma-separated on/off intervals, such as '20,50,20,30'. Only patterns shorter than 2 seconds will be transmitted."