Miroslav Lichvar eceb8d9937 refclock_phc: add support for timestamping of external PPS ...

Add extpps driver option to the PHC refclock to enable external
timestamping of PPS signal and also options to configure the channel and
pin index. In this mode, the driver polling function accumulates samples
for hwclock, which is used to convert received timestamping events to
local time.

2017-05-26 13:33:53 +02:00

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