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Author SHA1 Message Date
Richard Cochran f08d264e1d Improve stability of PHC reading in phc2sys. 
Make five PHC readings in sequence and pick the quickest one.

Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
 2012-08-29 15:29:56 +02:00
Richard Cochran 998093b6f7 Add non-PPS mode to phc2sys. 
As some PHC hardware/drivers don't provide PPS, it may be useful to keep the
system clock synchronized to PHC via clock_gettime(). While the precision
of the clock is only in microsecond range, the error seems to be quite stable.

The -d parameter now can be omitted if -s is provided.

Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
 2012-08-29 15:29:43 +02:00
Richard Cochran af3cbb5fbd Add a tool to synchronize the system time from a PTP hardware clock. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-24 19:12:57 +01:00