Use at your own risk. This software comes with absolutely no warranty.
Route and Track data may be uploaded as points by using the -p flag, otherwise they will be imported as a line. You can run v.in.garmin multiple times and merge the line and point vectors with the v.patch command if you want, but take care when merging dissimilar attribute tables.
Future versions of GRASS will use gardump as the default download program. It can talk to newer Garmin GPSs, while gpstrans seems to be mostly abandoned these days and only works with older GPSs. The current version of gardump (ver 2.5) will not yet talk to USB-only GPSs, but you can try the v.in.gpsbabel module for those. The gardump code has been tested with an older Garmin GPS 45 and a newer GPS V and is expected to work with everything in between.
Before running v.in.garmin, gpstrans should be set up
to output WGS84 latitude-longitude, as follows:
$ gpstrans -s
datum: 100 (WGS84)
format: 2 - lat/lon ddd.ddddd
gpstrans was written by Carsten Tschach
gardump was written by Marc Hyman
Last changed: $Date$