[OSM-talk] Garmin Legend HCx and Linux

Simon Ward simon at bleah.co.uk
Sun Dec 28 14:16:30 GMT 2008

On Sun, Dec 28, 2008 at 12:18:31PM +0000, Gervase Markham wrote:
> I asked for a Garmin Legend HCx for Christmas, on the recommendation of
> various people in this group, and am now trying to connect it to my
> Linux computer to do some real-time mapping. Has anyone got this device
> working with gpsd? A bit of Googling and other work doesn't turn up
> anything - some say to use the garmin_gps kernel module, others say it's
> unreliable (and, in fact, it is blacklisted in my Ubuntu 8.10).

AFAIK you need to use the garmin_gps module for gpsd.  It provides the
requisite USB‐serial devices, /dev/ttyUSBN.

If you use gpsbabel (its own Garmin support is considered to be more
reliable[*]) a lot, you might want to keep the module blacklisted and
only load it manually when you want to use gpsd (this ignores the
blacklist).  Otherwise, remove the blacklist.

[*] gpsbabel can also use the USB‐serial device provided by garmin_gps

A complex system that works is invariably found to have evolved from a
simple system that works.—John Gall
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