[hafqa] [hafqa] [Bug 2878] Very poor satellite acquisition in internal GPS

Sat Feb 2 23:59:34 EET 2008

https://bugs.maemo.org/show_bug.cgi?id=2878

thomas at mich.com changed:

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                 CC|                            |thomas at mich.com

------- Comment #2 from thomas at mich.com  2008-02-02 23:59 GMT+3 -------
Look for osso-gpsd in the source tree - it is there, but under O, not G.

That said, the /sbin/gpsdriver is the glue between the TI chip and the NMEA
stream and appears to be closed source.  Apparently a GPIO bit turns the TI
chip on and off (I don't know which one), and data appears on /dev/ttyS0 or
/dev/ttyS1 with an unidentified stream.

I have no information on the TI chip itself.  It probably could save and
restore time and location or other information to make acquisition MUCH faster.

Although I doubt sensitivity could be improved (it also does not appear to be a
problem) since you can't fit a big strip antenna, if you can preload the chip
with a quick guess location and time gps chips normally lock on in seconds, not
minutes.

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