Add more hints to Garmin doc.

diff --git a/xmldoc/formats/garmin.xml b/xmldoc/formats/garmin.xml
index f7e2591837d9906f2b911722d47e8f2c8020d51c..c8b6dcd23d483b99a8c6500e081fda0e861efe78 100644 (file)
--- a/xmldoc/formats/garmin.xml
+++ b/xmldoc/formats/garmin.xml
@@ -149,5 +149,19 @@ given slot number.  They don't know that the picture you placed in the
 first slot is a happy face, they only know they're in the lowest
 numbered slot.  GPSBabel names the them consistently with Mapsource,
 so they are named 'Custom 0' through 'Custom 511'.
+</para>
+       For models where the connection on the GPS is a serial interface, 
+       be sure the GPS is set for "Garmin
+       mode" in setup and that nothing else (PDA hotsync programs, gpsd,
+       getty, pppd, etc.) is using the serial port.  
+</para>
+<para>
+       For models connected via USB, we recommend use of the 'usb:' 
+       filename.   For this to work on Windows, you must install
+       the Garmin driver.  For Linux, this will fail if have the garmin_gps
+       kernel module loaded.  
+       See the <a href="/osnotes.html">Operating System Notes</a> for details.
+<para>
+
 </para>