if [ -n "`grep cfg80211 /proc/modules`" ]
then
  sleep 1
  newphy=`iw list | sed -n 's/^Wiphy //p' | sort`
  newwlan=`ip link show | sed -n 's/^[0-9]\{1,\}: \([a-z]\{2,\}[0-9]\{1,\}\).*/\1/p' | sort`
  for i in $oldwlan
    do
    newwlan=`echo $newwlan | sed "s/$i//"`
  done
  for i in $oldphy
    do
    newphy=`echo $newphy | sed "s/$i//"`
  done
  if [ -n "$newphy" ]
  then
    for i in $newphy
    do
      set -- $newwlan
      j=$1
      newwlan=`echo $newwlan | sed "s/$j//"`
      mac=`ip link show $j | sed -n 'y/abcdef/ABCDEF/;s/.*\(\([0-9A-F]\{2\}:\)\{5\}[0-9A-F]\{2\}\).\+/\1/p'`
      echo "${i}=${mac}" >>/var/run/wlanphy.conf
    done
  fi
fi