[ntp:questions] HopfClockSerial with Suse 10.2

Harlan Stenn stenn at ntp.isc.org
Tue Feb 20 09:07:18 UTC 2007

>>> In article <NBBBJOLPBNCDKOCJCCCMAEPJCGAA.gerhard at pisl.de>, gerhard at pisl.de (Gerhard Pisl) writes:

Gerhard>   Feb 8 20:45:07 earth ntpd[15469]: refclock_open /dev/hopfclock0:
Gerhard> Operation not permitted Feb 8 20:45:07 earth ntpd[15469]:
Gerhard> configuration of failed

What are the permissions on /dev/hopfclock0 (and the file it points to)?

What options are you using to start ntpd?

Gerhard> My ntp.conf looks like:
  # Hopf DCF 6020
  server prefer mode 12
I don't understand the "mode 12" in the line above.
  fudge stratum 0
Why are you fudging the stratum to 0?

Gerhard> Question: What does the message "refclock_open /dev/hopfclock0:
Gerhard> Operation not permitted" exactly mean?

"man 2 open" and look for EPERM.

Gerhard> Do I have to compile something into my kernel which is probably not
Gerhard> in yet?

I doubt it.


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