Re: [gpsd-dev] RFC: GPSd on Android as a system service

[Adam Serbinski]

>Agreed, and gpsd does not pass on UNKNOWN data.  It is useless because
>it is UNKNOWN.  Now if we knew what it meant, but we do not.

It's not about passing on the unknown elevation, it's about passing on the cno 
and SV identifying numbers.

The -91 is incidental.

If it wasn't for the fact that this would probably break a lot of gpsd clients, 
I would suggest leaving out just the elevation and azimuth fields, this way you 
can be sure that you are not passing on any unknown data, while still passing 
on the data that *is* known.