[maemo-developers] N810 AGPS?

From: Simon Pickering S.G.Pickering at bath.ac.uk
Date: Thu Jan 31 00:47:25 EET 2008
Just wondering if AGPS is enabled, or could be enabled on the N810. We  
have a chip which supports it (Ti NaviLink GPS5300). The question  
(mainly aimed at Nokians) is whether or not they can release a bit  
more info to make this possible.

We could do AGPS LTO (Long term orbit) for example over Wifi (assuming  
this isn't already in the pipeline and is not impossible due to  
something missing from the chip, etc.).

I see that gpsdriver creates/uses/modifies a file called  
/var/lib/gsp/nvd_data which contains a few headings and lots of  
numbers. I've had a quick look at these but can't work out what they  
are, but the numbers certainly change (e.g. from one day to the next  
at the very least in my minimal testing). Anyone with more experience  
of GPS-y things have any ideas what these might represent?

I also see there's a file called gps_last_saved_report which is  
presumably fed back to the GPS to avoid a cold start (and to give it  
credit, the latter starts are certainly faster, just not AGPS faster,  
afai have heard they should be anyway).

Any thoughts?

Cheers,


Simon


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