Additional pps-gpio

Achim Gratz Stromeko at nexgo.de
Wed Jan 24 18:02:52 UTC 2018


Gary E. Miller via devel writes:
> So the problem is with the RasPi kernel.  Go ahead and nag them for us.

If you go back and actually read what I wrote at the beginning of the
thread, it is a problem with the gpio-pps driver.  It only allows a
single GPIO to be configured for PPS.  Both the serial and the LPT
driver allow PPS input for multiple devices, but that's no use on the
rasPi because there is no LPT port and the serial ports don't have the
hardware flow control lines necessary for the PPS line disciplining.


Regards,
Achim.
-- 
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