Re: [Linuxptp-users] Dynamically sync clocks with phc2sys depending on master/slave

[Richard C. <ric...@gm...>]

On Tue, Oct 12, 2021 at 09:47:21PM +0200, Peter Bergin wrote:
> Hi,
> 
> I'm currently working on a network product using gPTP configuration for PTP
> sync. The device shall be a AVB endpoint handling audio and according to
> Avnu specifications all endpoint shall be capable of being master on the
> network. Some plugins for AVB (such as gstreamer and alsa-plugins) require
> that system time (CLOCK_REALTIME) is in sync with PHC to get correct timing.
> I see different cases depending on if the device is master or slave. If the
> device is slave I would like to sync PHC to CLOCK_REALTIME. The other way
> around, if device is master I would like to sync CLOCK_REALTIME to PHC.
> 
> To the question; is there a way to use phc2sys and handle this
> automatically?

phc2sys has an automatic mode.  See the man page for details.

Thanks,
Richard