[LinuxPPS] cross posting [time-nuts] NTP API on Linux 2.6.26
William S. Brasher
billb958 at door.net
Wed Jan 7 18:42:34 CET 2009
I am using glibc-2.7 with the following patch applied:
http://sourceware.org/ml/libc-alpha/2008-03/msg00076.html
The test code reading struct timex returns:
TAI Offset 34
And ntptime returns:
ntp_gettime() returns code 0 (OK)
time cd0f2c87.abd4e058 Wed, Jan 7 2009 7:28:39.671, (.671217174),
maximum error 2975 us, estimated error 1 us, TAI offset 34
ntp_adjtime() returns code 0 (OK)
modes 0x0 (),
offset 9.669 us, frequency 2.065 ppm, interval 1 s,
maximum error 2975 us, estimated error 1 us,
status 0x2001 (PLL,NANO),
time constant 4, precision 0.001 us, tolerance 500 ppm,
On a box running glibc-2.6 and ntpd compiled using timex.h from the
patched glibc-2.7, ntptime returns TAI offset -1208831458.
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