#!/bin/ash

exec 1>/dev/console 2>&1

P=/sys$DEVPATH
[ -r $P/uevent ] && . $P/uevent

# Exit unless proper type
[ $SUBSYSTEM = "usb-serial"  -a -n "$DRIVER" ] || exit 0

PATH="/sbin:/bin:/usr/sbin:/usr/bin"

ME=${0##*/}
say ()
{
    echo "$ME: $@"
    logger -t $ME "$@"
}

MANU=$( ( test -r $P/../manufacturer && cat $P/../manufacturer ) || \
        ( test -r $P/../../manufacturer && cat $P/../../manufacturer ) || echo "generic" )

PORT=$( cat $P/port_number )
DEV_NM="$DRIVER-$(cat $P/../../idVendor)-$(cat $P/../../idProduct)"
DEVP=/dev/ttyusb/$DEV_NM

if [ $ACTION = "add" ] ;then
    mkdir -p $DEVP
    ln -sf /dev/$MDEV $DEVP/$PORT
    say "Add $DEVP/$PORT -> /dev/$MDEV MANU $MANU"
elif [ $ACTION = "remove" ] ;then
    rm -f /dev/ttyusb/$MANU/$DEV_NM/$PORT
    say "Rem $DEVP/$PORT -> /dev/$MDEV MANU $MANU"
else
    say "Unknown action $ACTION for $MDEV $MANU $DEV_NM"
fi