Add serial info for navilink devices.

diff --git a/xmldoc/formats/navilink.xml b/xmldoc/formats/navilink.xml
index a407749f8cbec46ce71161456163549676f1ae29..2889104ec294a6d437a7081661e395415439d653 100644 (file)
--- a/xmldoc/formats/navilink.xml
+++ b/xmldoc/formats/navilink.xml
@@ -28,7 +28,14 @@
 <para>
        To access the device using the serial protocol over USB the
        device needs to be in Navilink mode, which can be activated
-       from the main menu of the device.
+       from the main menu of the device. This device uses a Prolific 
+       PL2303 USB/Serial adapter internally and that's how it will 
+       present itself to the host operating system. You thus need
+       USB drivers for the PL2303, such as those from the 'Download'
+       section of
+       <ulink url="http://www.locosystech.com/product.php?zln=en&id=30#">
+       Locosys USB Genie GT-31/BGT-31 drivers
+       </ulink>.
 </para>
 <para>
        Details of the Navilink serial protocol can be found