Re: [gpsd-users] Sending SiRF commands to GPS receiver

[Alexander Carver]

On 2/25/2012 23:26, Eric S. Raymond wrote:
> Alexander Carver<address@hidden>:
> > On 2/25/2012 22:17, Eric S. Raymond wrote:
> > > Alexander Carver<address@hidden>:
> > > > Is it possible to send any SiRF command to a GPS via gpsd or can you
> > > > only send certain commands already in the source code?  I see the -x
> > > > in gpsctl but it's not clear how to send SiRF messages (SiRF isn't
> > > > one of the listed examples).
> > >
> > > It's not possible to send general control messages from an ordinary
> > > gpsd client.  It is possible to do it via the gpsctl utility; you should
> > > look into that.
> >
> > I did ask about gpsctl.  When I say 'via gpsd', I mean exactly that,
> > using gpsd as the gateway for gpsctl.  :)
>
> gpsctl operting when the daomon is running uses the gpsd special control
> port.  So gpsctl -x should do what you need.

Right, I understand that much but what should the format of the command 
be after -x because it's not documented for SiRF.  The manpage for 
gpsctl lists UBX, Navcom NCT, Trimble TSIP, Zodiac, and straight NMEA 
but it leaves out SiRF.