[ntp:questions] NTP, GPSD & PPS
david-taylor at blueyonder.co.uk.invalid
Wed Dec 10 11:50:22 UTC 2014
On 10/12/2014 10:24, Miroslav Lichvar wrote:
> If it's a recent version of gpsd which uses kernel timestamps (check
> for KPPS messages in "gpsd -D 4" output), you may already have a "true
> PPS sync". The PPS and NMEA timestamps are paired in gpsd, so it's not
> necessary to add the NMEA source to ntpd. To avoid problems with the
> falseticker, you can remove the source from ntpd configuration or use
> the noselect option to never use it and only monitor it.
That sound helpful!
With -D 4 I get a list of devices ending with "PPS", but presumably that
is not the same as "KPPS"? I did try an apt-get first to update gpsd
but it seems I have the most recent available. It seems I have 3.6. Do
I need a development version or...?
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