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Re: [gpsd-dev] [PATCH] HOWTO: calculate the average GPS offset

From: Andy Walls
Subject: Re: [gpsd-dev] [PATCH] HOWTO: calculate the average GPS offset
Date: Mon, 21 Oct 2013 21:31:20 -0400

On Mon, 2013-10-21 at 21:14 -0400, Andy Walls wrote:
> Hi Gary:
> On Mon, 2013-10-21 at 16:52 -0700, Gary E. Miller wrote:
> > Yo Andy!
> > 
> > On Mon, 21 Oct 2013 19:43:10 -0400
> > Andy Walls <address@hidden> wrote:

> gpsd-3.7 ntpshm.c:init_kernel_pps()'s algorithm will never associate my
> GPIO /dev/pps0 with the serial port of the GPS, AFAICT, so it will never
> use it.

Which, by the way boggles, my mind.  The number of systems with a GPS
and multiple /dev/ppsN devices nodes has to be vanishingly small, no?

If there is only one /dev/ppsN device node, why can't GPSD just assume
that it is acceptable to use it with the GPS?


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