Chuck Swiger <[email protected]> wrote: > Hi-- > > On Oct 16, 2012, at 2:49 PM, Felipe Blauth wrote: >> 2012/10/16 Brian Utterback <[email protected]> >>> I think the original poster is asking to do something a little bit >>> different than the usual. If I am reading it right, he is not asking how to >>> get ntpd to read a custom clock as a source of time (which as noted is what >>> a refclock is for). I think he is asking how to get ntpd to *set* a custom >>> clock, treating it as it would the system clock, so as to sync the custom >>> clock with the upstream NTP server time. >> >> That's exactly what I want to do. > > OK. You can either hook into ntpd's calls to get/settimeofday() and > adjtime() as you initially suggested, or perhaps look into the SHM driver. > The latter is a generic interface that puts clock timestamps into shared > memory; but you can read from SHM instead of writing, if you like-- would be > easier if you have something like a GPS receiver and gpsd populating the SHM > timestamps.
Funny that, after you initially seem to indicate that you have understood the question, you still come up with the SHM driver that is a REFERENCE CLOCK driver, not an ADJUSTMENT CLOCK driver. _______________________________________________ questions mailing list [email protected] http://lists.ntp.org/listinfo/questions
