--- etc/hotplug/printer.orig	2009-06-24 15:54:14.000000000 +0000
+++ etc/hotplug/printer	2009-08-08 16:39:21.000000000 +0000
@@ -13,9 +13,15 @@
 
 # no K2.4 support
 BIN=/sbin/printserv
-USB_DEVICE=/dev/usblp0
+DEFAULT_NODE=/dev/usblp0
+DEV_PREFIX=/dev/usb_prntsvr
 
-PORT=9100
+# Get physical USB port
+UPRT=$(lsusb -t -h $3 | sed -n 's/.*TOPO=\([0-9]*\).*/\1/p')
+UPRT=$(printf "%02d" $UPRT)
+UPRT=${UPRT:0:1}
+# AVM's printserv does need two ports, therefore skip every other port
+PORT=$((9100 + 2 * UPRT))
 PRINTER_STATUS_FILE=/var/log/printer_status
 PRINTER_ID_FILE=/var/log/printer_id
 DEVID="USB`echo $3 | tr "/" "-"`"
@@ -35,10 +41,11 @@
 
 case $1 in
 
-add)	if test "$6" = "1"; then
+add)	#if test "$6" = "1"; then
 
 		# Detect supported printer...
-		PROTOCOL=`grep "print" /proc/bus/usb/devices | sed -n 's/.*Prot=\(0[12]\).*/\1/p'`
+		#PROTOCOL=`grep "print" /proc/bus/usb/devices | sed -n 's/.*Prot=\(0[12]\).*/\1/p'`
+		PROTOCOL=$(hexdump -s 34 -n 1 -e '1/1 "%02x"' $3)
 		case $PROTOCOL in
 			01*|02*) # uni- and bidirectional
 				 ;;
@@ -47,41 +54,95 @@
 				 exit 1;
 				 ;;
 		esac
-
+		
+		# Get next USB minor number...
+		MINOR=0
+		while [ -c $DEV_PREFIX-*.$MINOR ]; do
+			if [ "$MINOR" = "15" ]; then
+				eventadd 1 "Printer limit exceeded"
+				exit 1;
+			fi
+			MINOR=$((MINOR + 1))
+		done
+		# Device node
+		USB_DEVICE=$DEV_PREFIX-$2.$MINOR
+		# Create it
+		mknod -m 666 $USB_DEVICE c 180 $MINOR
+		
+		# Set printer on physical USB port 0 as default
+		if [ "$UPRT" = "0" ]; then
+			rm -f $DEFAULT_NODE
+			mknod -m 666 $DEFAULT_NODE c 180 $MINOR
+		# Disable default printer
+		#elif [ "$MINOR" = "0" ]; then
+		#	rm -f $DEFAULT_NODE
+		#	mknod -m 666 $DEFAULT_NODE c 180 255
+		fi
+		
 		# Load usb printer class module...
 		modprobe $MODULE
-
+		
+		# Printserver port already in use?
+		netstat -nlt | grep ":$PORT" > /dev/null 2>&1 && PORT=n/a
+		
 		# Find device's strings...
 		for var in `/sbin/lsusb -s -h $3|tr " " "_"`; do
 			if echo $var | grep "='" > /dev/null 2>&1; then
 				eval $var
 			fi
 		done
-		echo "${MANU:=USB}:${PROD:=Printer}"|tr "_" " " > $PRINTER_ID_FILE
+		#echo "${MANU:=USB}:${PROD:=Printer}"|tr "_" " " > $PRINTER_ID_FILE
+		[ ! -e $PRINTER_ID_FILE ] && echo -e ":\t" > $PRINTER_ID_FILE
+		# Add to available printers
+		sed -i "s/\t$/\t$2: `echo ${PROD:=USB-Printer} | tr "_" " "` (Port $PORT)\t/" $PRINTER_ID_FILE
 		
-		# Starting printserver...
-		if ! $BIN -d $USB_DEVICE -p $PORT -c $CONSOLE; then
-			eventadd 153
-		fi
-
+		echo "0" > $PRINTER_STATUS_FILE
 		echo "1" > $HANDLE
 		
-		eventadd 150 9100 	# `echo ar7cfg.brinterfaces.ipaddr | ar7cfgctl -s` 
-					# (IP address should not be displayed in log at the moment.)
-	else	
-		eventadd 152
-		echo "0" > $HANDLE
-	fi
+		# Start printserver
+		if [ "$PORT" != "n/a" ]; then
+			if ! $BIN -d $USB_DEVICE -p $PORT -c $CONSOLE; then
+				eventadd 153
+			fi
+			
+			eventadd 150 $PORT 	# `echo ar7cfg.brinterfaces.ipaddr | ar7cfgctl -s` 
+						# (IP address should not be displayed in log at the moment.)
+		fi
+	#else	
+	#	eventadd 152
+	#	echo "0" > $HANDLE
+	#fi
 	;;
 
 remove)	if test $4 -eq 1; then
 
 		# Stop it all...
-		killall ${BIN##*/}
-		rm -f $PRINTER_STATUS_FILE
-		rm -f $PRINTER_ID_FILE
-		sleep 1;
-		rmmod $MODULE
+		#killall ${BIN##*/}
+		
+		# Remove device node
+		rm -f $DEV_PREFIX-$2*
+		# Update available printers
+		sed -i "s/\t$2[^\t]*//" $PRINTER_ID_FILE
+		
+		# Get corresponding pids
+		PIDS=$(ps w | sed -n "s=^ *\([0-9]*\).*$BIN.*$DEV_PREFIX-$2.*=\1=p")
+		
+		# Check for other printers
+		if [ -c $DEV_PREFIX-* ]; then
+			# This prevents semaphore failures within other printserv processes
+			[ -n "$PIDS" ] && kill -KILL $PIDS
+			# Be sure the status file exists, even if deleted by killed process
+			[ ! -e $PRINTER_STATUS_FILE ] && echo "0" > $PRINTER_STATUS_FILE
+		# No printers left
+		else
+			# Terminate as usual
+			[ -n "$PIDS" ] && kill -TERM $PIDS
+			# Clean up
+			rm -f $PRINTER_STATUS_FILE
+			rm -f $PRINTER_ID_FILE
+			sleep 1;
+			rmmod $MODULE
+		fi
 		eventadd 151
 	fi
 	;;