Additional pps-gpio

Gary E. Miller gem at
Tue Jan 23 21:58:40 UTC 2018

Yo Achim!

> > Agai, the problem
> > is not using multiple such devices, it's with actually getting them
> > configured in the kernel.  
> How about this on a RasPi:
> # Uptraonics on gpio 18
> dtoverlay=pps-gpio,gpiopin=18
> # adafruit HAT
> dtoverlay=pps-gpio,gpiopin=4

Ah, now I see the problem on the RasPi.

These work, when you use just one or the other:

    # Uputronics on gpio 18

    # adafruit HAT on gpio 4

But put use both and you still on get one /dev/ppsX

Also, you would expect this to work, but it also jsut give you one


So the problem is with the RasPi kernel.  Go ahead and nag them for us.

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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