Re: [gpsd-users] GPSCTL do more than you ask him to do.

[Gary E. Miller]

Yo Eric!

On Thu, 15 Oct 2015 17:09:39 -0400
"Eric S. Raymond" <address@hidden> wrote:

> >Everytime I started to look at gpsctl I choked.  
> 
> Why, in particular?

Hard to say what I don't understand about a subject I don't understand.  :-)

I would like a simple function, dependent on GPS type, that I could pass
a simple control string and it would do the checksum/framing/etc. and send
the string.  No more.

So I could code something like:

        gpsctl -t u-blox --set-pps-width 100

Then in main() maybe call that calls a function like:
        set_pps_width( 'u-blox', 100)

That would know the string to send to some GPS types, hopefully u-blox,
to set the PPS width to 100 mSec.

send_pps_width() would call a function like:
        send_ublox( 'XXYYZZ' );

send_ublox() would know how to checksum and frame XXYYZZ and sent to the 
GPS.

For some GPS, like garmin serial, a wait for ACK would also be needed, so
some primitive scheduler.

But not high on my TODo list.



RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
        address@hidden  Tel:+1 541 382 8588

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