gpsd/udev.gpsd

#!/bin/bash
CTRL_SOCK="/run/gpsd.socket"
DEV_NAME="/run/gpsd.device"

. /etc/sysconfig/gpsd

if [ "$GPSD_STARTBYUDEV" != "yes" ]; then
    exit 1
fi

if [ "${ACTION}" = "remove" ]; then
  GPSD_PID=$(pidof gpsd)

  if [ -z "$GPSD_PID" ]; then
    echo "Can't find gpsd!"
  else
    echo "Remove gpsd from pid: ${GPSD_PID}"
    TTYDEV="/dev/$(basename $DEVPATH)"
    TTYDEV_SAVE=$(cat ${DEV_NAME})

     if [ "${TTYDEV}" = "${TTYDEV_SAVE}" ]; then
         # send TERM signal
         kill -15 ${GPSD_PID}
         rm -f ${DEV_NAME}
     fi
  fi
else
  case "$DEVPATH" in
    *tty*)
      TTYDEV="/dev/$(basename $DEVPATH)"
      options="-F $CTRL_SOCK $GPSD_OPTIONS"
  
      if [ -n "$GPSD_PORT" ]; then
        options="$options -S $GPSD_PORT"
      else
        GPSD_PORT=2947
      fi
  
      echo "Action '${ACTION}' Launch gpsd to $TTYDEV with $options"
  
      /usr/sbin/gpsd $options ${TTYDEV}
      echo "${TTYDEV}" > ${DEV_NAME}
      (sleep 1 && echo "F=$TTYDEV" >/dev/tcp/localhost/$GPSD_PORT) &
    ;;
  esac
fi 2>&1 | /bin/logger -t gpsd