Benny Siegert <[email protected]> writes: > On Thu, Jan 14, 2021 at 3:19 PM Rocky Hotas <[email protected]> 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).
It is really straightforward in C. I wrote a program to watch a pin and do things, and all the complexity was in writing rate limiting. As for python, if there is a python library for gpio pins and it has some semblance of portability, it should be relatively easy to add #ifdef NetBSD and do the read/write the NetBSD way. If it's written as if there is only one operating system in the world, it's probably a bit harder.
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