On 2/6/20 21:36, R C wrote: > Hello, > > > > if not mistaken, sysfs creates the '/sys/class/gpio' directory > structure and the interface to the actual pins, right? > > > On an older centos version (7.1.1503), it is there however on > 7.8.2003 it's not. > > > Am I missing something? The gpio handling was changed several kernels ago, IIRC you need you use libgpio now. I think I built it some time ago and put it here https://people.centos.org/pgreco/libgpiod/, let me know if it helps. > > > > Ron > > _______________________________________________ > Arm-dev mailing list > Arm-dev at centos.org > https://lists.centos.org/mailman/listinfo/arm-dev