diff --git a/udev.config b/udev.config
index 324c11e55f..8d77099ca8 100644
--- a/udev.config
+++ b/udev.config
@@ -4,6 +4,7 @@
 #      for example, 'sda3' has a "kernel number" of '3'
 # %M - the kernel major number for the device
 # %m - the kernel minor number for the device
+# %b - the bus id for the device
 #
 
 # My usb camera...
@@ -30,5 +31,5 @@ TOPOLOGY, BUS="usb", place="2.4", NAME="mouse2"
 
 # ttyUSB1 should always be called visor
 REPLACE, KERNEL="ttyUSB1", NAME="visor"
-#REPLACE, KERNEL="ttyUSB0", NAME="pl2303"
+REPLACE, KERNEL="ttyUSB0", NAME="pl2303"