MAJOR=254
MINOR=0

for Pack in 0 1 2 3 
do
  for Dev in 0 1 2 3 4 5 6 7 
  do
     MINOR=`expr $Pack \\*  16 + $Dev`
     if [ $Pack == 0 ] ; then LETR='A' ; fi
     if [ $Pack == 1 ] ; then LETR='B' ; fi
     if [ $Pack == 2 ] ; then LETR='C' ; fi
     if [ $Pack == 3 ] ; then LETR='D' ; fi

     mknod /dev/dac$LETR$Dev c $MAJOR $MINOR

  done
done