TangoGPS and GPSD

Marcus Bauer marcus.bauer at gmail.com
Sun Jul 6 15:51:21 CEST 2008

Does the gpsd have the right device in /etc/defaults/gpsd?

It is /dev/tty/SAC0 thus:

To test the gpsd you can do from your desktop:

nc 2947

then type 'r' and hit enter.

Looks like this then:

~$ nc 2947
$GPTXT,01,01,01,PSRF inv format*2B
$GPTXT,01,01,01,PGRM inv format*34
$GPTXT,01,01,01,PFEC inv format*2C

gpsd uses 8-10% CPU here.

On Sun, 2008-07-06 at 13:19 +0200, Bernhard Hoell wrote:
> Hello,
> I failed to get GPS working on my freerunner. I flashed the latest  
> openmoko-devel-image-om-gta02.jffs2  and matching kernel. I installed  
> tangogps as well as gpsd manually with opkg and I configured tangogps  
> to connect to the gpsd, which should have been running (since a  
> portscan of my freerunner showed port 2947 as open).
> I kept it running for several hours, but tangogps did not report GPS  
> information. GPSD however used about 50 to 70 % of processor power.
> I read through the mailing lists and checked the tangogps documents.
> It seems to me that I am missing something here. Can somebody point me  
> to a more detailed documentation or give advice?
> Thanks
> Bernhard

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