Re: GPIO programs for Raspberry Pi in Python and C

["Amitai Schleier" <schmonz%schmonz.com@localhost>]

On 14 Jan 2021, at 15:22, Benny Siegert wrote:

> On Thu, Jan 14, 2021 at 3:19 PM Rocky Hotas <rockyhotas%firemail.cc@localhost> 
> wrote:
> > As an alternative, are there some C libraries available for NetBSD, 
> > to
> > manage the GPIO pins?
>
> NetBSD uses the gpio(4) device to talk to the GPIO pins:
> http://man.netbsd.org/gpio.4
>
> So your program opens /dev/gpio and uses ioctl to do things. This
> should be relatively straightforward in C (or perhaps in Go).

In support of Benny's claim, in the NetBSD 7 era I managed to figure out 
the GPIO basics despite not knowing much of anything about anything. 
This repo may help: https://github.com/schmonz/c-embedded-fundamentals