Hello, i have the Beaglebone Black. few weeks back was OK and I used to learn and do few projects. then I updated to latest Debian image (ver 9) and latest kernel.
However, I found out that none of my previous Python projects (via Adafruit_BBIO) will work. All complain about the GPIO (permission mostly even though I am running as usual as SUDO. note: they are all existing projects and all worked fine before). Further tests revealed that only Adafruit libraries are not working, If I rewrite the test in bonescript, all work fine. I went to /sys/class/GPIO, it seems all my GPIO pins are exported and cannot be exported or unexported (write error, invalid argument). however i can cd to any GPIO and set direction, value and the tests work. Any idea what is going one here? I have no other processes running and I have rebooted several times. I have updated to latest Adafruit_BBIO but no change. Rebooted several times, no change. Thanks in advance. -- 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 beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/7471110d-921f-41ae-a7e1-e8f1b30f4f22%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
