diff --git a/BUILDING b/BUILDING
index be19154..b7d1881 100644
--- a/BUILDING
+++ b/BUILDING
@@ -7,8 +7,22 @@ or a BeagleBone Black with the latest Debian image (see http://www.armhf.com). S
 software will EASILY fit on the on-board memory of the BBB, but you will still
 need a uSD card to install the armhf.com Debian image to the on-board memory.
 
+Another note on the BBB, the armhf.com Debian image does not support some usb devices
+out of the box, but it is easy to correct. If you plug in your DVAP or DVRPTR into
+your BBB or RasPi, the kernel should auto load drivers and you will see that with the
+"lsusb" command. The DVAP uses a FTDI chip and the DVRPTR uses Atmel. If you don't
+see an approprite output from "lsusb" after your device is plugged in, you need to
+enable it by executing:
+
+sudo depmod
+sudo modprobe <YOURDEVICEMODULE>
+
+where YOURDEVICEMODULE is "ftdl_sio" for the DVAP or is "cdc_acm" for the DVRPTR.
+After a reboot you should see the device in the "lsusb" list. If you don't see
+the device listed, Scott's software will never be able to open it either.
+
 You will need several packages to build Scott's gateway. The RasPi will probably have
-all or moste of these but it still doesn't hurt to be sure:
+all or most of these but it still doesn't hurt to be sure:
 
 sudo su
 apt-get update