Additional pps-gpio

Gary E. Miller gem at
Wed Jan 24 18:08:27 UTC 2018

Yo Achim!

On Wed, 24 Jan 2018 19:02:52 +0100
Achim Gratz via devel <devel at> wrote:

> 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.

Yes, but I assumed since you posted to the NTPsec list that it was about
a driver in NPTsec, not about a driver in the kernel.

>  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.

So, how about you file a bug with the RasPi kernel people?  Or should I?

Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
	gem at  Tel:+1 541 382 8588

	    Veritas liberabit vos. -- Quid est veritas?
    "If you can’t measure it, you can’t improve it." - Lord Kelvin
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