#! /bin/sh

N=/etc/init.d/ttyusb0

set -e

case "$1" in
  start)
	if [ -c /dev/ttyUSB0 ] ; then
		sed -ie 's/^#\(T1.*ttyUSB0.*\)/\1/' /etc/inittab 
	else
		sed -ie 's/^\(T1.*ttyUSB0.*\)/#\1/' /etc/inittab
	fi
	#test if we can read ttyS0, we have serial console
	if dd of=/dev/ttyS0 count=1 bs=1 if=/dev/zero
	then
		sed -ie 's/^#\(T0.*ttyS0.*\)/\1/' /etc/inittab 
	else
		sed -ie 's/^\(T0.*ttyS0.*\)/#\1/' /etc/inittab
	fi
	telinit Q 
	;;
  stop|reload|restart|force-reload)
	;;
  *)
	echo "Usage: $N start" >&2
	exit 1
	;;
esac

exit 0
