It appears that libgpiod is the best way to access GPIO from C/C++/Python these days. I have a simple C++ program working, but I can't figure out how to free up more GPIOs for use. I disabled video, audio, wireless and ADC in uEnv.txt, but gpioinfo shows about the same number of lines "used" as before. (In fact, a couple of GPIOs that I had been using, went from unused to used when I disabled those things!)
A lot of the lines are marked used by "P[89]_[0-9]+", but I don't see a corresponding process that looks like it would be using them. Is there a way to figure out which process (if any) is using a particular line? Is there a FAQ or compendium of current best practices? What about PRU -- I found some stuff about libpruio that looked promising, but it seems to be out of date? Is libgpiod preferable, if I don't need the extra speed PRU appears to provide? Thanks! -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/728146ee-6db3-4147-8641-18aa0e3e87b8o%40googlegroups.com.
