I'm looking into using libgpiod to control the GPIO on the Beaglebone AI in user space. I'm starting small and trying to use the included command line tools gpioget and gpioset, but not having any success.
The Beaglebone AI System Manual <https://github.com/beagleboard/beaglebone-ai/wiki/System-Reference-Manual#connector-p8> lists what looks like the gpio chip and line under pinmux mode 14. P8.19 looks to be gpiochip4 line 10. Am I reading that right? I have P8.19 configured in a device tree overlay to be an INPUT_PULLUP, pinmuxed to mode 14. I have a button wired up to P8.19, which shorts it to GND. I have verified that the button works using sysfs P8.19 GPIO number is 106, also listed in the same table from the system manual): echo 106 > /sys/class/gpio/export cat /sys/class/gpio/gpio106/value The last command outputs 1 when the button is not depressed, 0 when it is, as expected. I'm unable to use gpioget to see the same results: gpioget gpiochip4 10 When I run that, I always get back 0. Any thoughts? -- 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/ad120b05-6520-4cf7-8892-1ce03e44dd7d%40googlegroups.com.
