#!/bin/sh
# Start/stop DisplayLink

PIDFILE=/var/run/displaylink/displaylink.pid
DAEMON=@INSTALL_PATH@DisplayLinkManager

displaylink_start() {
  modprobe evdi
  $DAEMON &
  PID=$(echo $!)
  if [ ! -z $PID ]
  then
    echo $PID > $PIDFILE
  fi
  exit $?
}

displaylink_stop() {
 if [ -f $PIDFILE ]
 then
   kill -HUP $(cat $PIDFILE)
   rm -f $PIDFILE
 fi
 exit $?
}

displaylink_restart() {
  displaylink_start
  sleep 1
  displaylink_stop
}

print_usage() {
  echo "usage $0 start|stop|restart"
}

case "$1" in
  'start')
    displaylink_start
    ;;
  'stop')
    displaylink_stop
    ;;
  'restart')
    displaylink_restart
    ;;
  *)
    print_usage
    ;;
esac