Add tips for Garmin serial comms.

diff --git a/README b/README
index 509eb0e444e105867a1df358b4c5e8c088822b8e..31b8419a8d854401cf422f61343da349f1ffd633 100644 (file)
--- a/README
+++ b/README
@@ -66,7 +66,9 @@ THE FORMATS
        Waypoint serial upload and download works reliably under both
        POSIX and Windows.   I tested it with a Vista graciously provided
        on loan by Joe Armstrong.   The communications library used, jeeps,
-       claims to support most models of Garmin hardware.
+       claims to support most models of Garmin hardware.   Be sure the GPS 
+       is set for "Garmin mode" in setup and that nothing else (gpsd, getty,
+       pppd, etc.) is using the serial port.
        
     GPSMAN