[ntp:questions] ATOM driver not working on Linux

David Taylor david-taylor at blueyonder.co.uk.invalid
Sun Dec 14 09:33:18 UTC 2014


I have a newly installed 64-bit Linux Debian 7.7 system where I am 
trying to bring up NTP with PPS support.  Using ppstest /dev/pps0 I get 
the expected assert messages.  I have gpsd configured and working. 
Having configured and compiled NTP I get the error message:

   clock type 22 invalid

On checking the config.log I see that timepps.h is missing:

root at Pixie:~/ntp/ntp-dev-4.2.7p485-RC# cat config.log | grep timepps
configure:27520: checking for sys/timepps.h
configure:28812: checking timepps.h usability
conftest.c:230:21: fatal error: timepps.h: No such file or directory
| #include <timepps.h>
configure:28812: checking timepps.h presence
conftest.c:197:21: fatal error: timepps.h: No such file or directory
| #include <timepps.h>
configure:28812: checking for timepps.h
ac_cv_header_sys_timepps_h=yes
ac_cv_header_timepps_h=no

but on searching the disk timepps.h does appear to be present, and in 
the correct directory:

root at Pixie:~/ntp/ntp-dev-4.2.7p485-RC# find / -name 'timepps.h'
/usr/include/sys/timepps.h
/root/ntp/ntp-dev-4.2.7p485-RC/ports/winnt/ppsapi/loopback/src/timepps.h
/root/ntp/ntp-dev-4.2.7p485-RC/ports/winnt/include/timepps.h

What might be happening, please?  What's wrong?

Thanks,
David
-- 
Cheers,
David
Web: http://www.satsignal.eu



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