From owner-freebsd-questions@FreeBSD.ORG  Fri Feb 23 19:35:49 2007
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Date: Fri, 23 Feb 2007 12:11:46 -0700
From: "Aaron D. Gifford" <agifford@infowest.com>
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Subject: Freebsd 6.2 PPS (pps.ko) and NTP
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Hi,

I've got a Garmin GPS 18 LVD attached to a serial port on a FreeBSD 6.2 
box.  I've been trying to enable PPS support for ntpd on the BSD box, 
but this is all I get as a result:


   20 Feb 10:41:46 ntpd[14503]: refclock_nmea: time_pps_kcbind failed: 
Operation not supported

I do have pps.ko and ppbus.ko kernel modules loaded according to kldstat.

My ntpd.conf looks like:

   # Garmin GPS 18 LVD (OEM) reference clock:
   server 127.127.20.0 mode 1 minpoll 4
   fudge  127.127.20.0 time1 0.000 flag2 0 flag3 1 refid PPS

The GPS 18 is configured to enable PPS (set to a 200ms pulse width) and 
it's wired to DCD on the serial port.

Any ideas?  I'm an NTP GPS refclock newbie...

Thanks,
Aaron out.