Looking for ntp/PPS setup guide
Kevin Oberman
oberman at es.net
Sun Aug 1 22:13:59 PDT 2004
> From: Gregory Bond <gnb at itga.com.au>
> Date: Mon, 02 Aug 2004 10:15:45 +1000
> Sender: owner-freebsd-stable at freebsd.org
>
>
> Thanks all for the enlightening response. There is one bit I still don't get:
> How do I tell the kernel which port to look for the PPS signal on with
> PPS_SYNC?
You create a softlink from the physical device (parallel or serial).
ln -s /dev/ttyd0 /dev/pps0 (127.127.22.0 in ntp.conf)
or
ln -s /dev/ttyd1 /dev/pps0 (127.127.22.0 in ntp.conf)
or
ln -s /dev/ttyd1 /dev/pps1 (127.127.22.1 in ntp.conf)
or
ln -s /dev/ppc0 /dev/ppc2 (127.127.22.2 in ntp.conf)
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: oberman at es.net Phone: +1 510 486-8634
More information about the freebsd-stable
mailing list