Index: tools/setup_virtual_can.sh
===================================================================
diff -u -ra08757ab36f7555f49526e28b7d2eb799e64769d -r82615ab9d1757ef67810f9fc267cd89a19a2e4c8
--- tools/setup_virtual_can.sh	(.../setup_virtual_can.sh)	(revision a08757ab36f7555f49526e28b7d2eb799e64769d)
+++ tools/setup_virtual_can.sh	(.../setup_virtual_can.sh)	(revision 82615ab9d1757ef67810f9fc267cd89a19a2e4c8)
@@ -14,17 +14,19 @@
 #  @brief Initializes the virtual can interfaces
 #
 ############################################################################
-sudo ifconfig vcan0 down
-sudo ifconfig vcan1 down
-sudo ip link delete dev vcan0
-sudo ip link delete dev vcan1
+iface="can0"
+if [ "$#" -gt 1 ]; then
+    echo "Please provide only one can interface."
+    echo "Usage (defaults to can0): ./bring_can_iface_down.sh "
+    echo "     Use <iface> instead: setup_canbus.sh <iface>"
+    exit 1
+elif [ "$#" -eq 1 ]; then
+    iface="$1"
+fi
 
-sudo ip link add dev vcan0 type vcan
-sudo ip link add dev vcan1 type vcan
+sudo ip link add dev "$iface" type vcan
 
-sudo ip link set vcan0 up
-sudo ifconfig vcan0 txqueuelen 10000
+sudo ip link set "$iface" up
+sudo ifconfig "$iface" txqueuelen 10000
 
-sudo ip link set vcan1 up
-sudo ifconfig vcan1 txqueuelen 10000