Hello all, I’m trying to enable the eMMC pins (P3-P6 and P21-25 on the P8 header) as GPIO's on my BeagleBoneBlack rev C with no success. My current system runs through the micro SD card as I have disabled the corresponding eMMC line on uEnv.txt for the use of the pins.
I have tried loading the cape overlay of Derek Molly Device Tree <https://github.com/derekmolloy/boneDeviceTree/blob/master/overlay/DM-GPIO-Test.dts>and cape-univ-emmc <https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/cape-univ-emmc-00A0.dts> to "/sys/devices/platform/bone_capemgr/slots" ($SLOTS) with still no success. Whilst I can compile and load the cape overlay on my device tree, when I toggle the value of the GPIO pin through "sys/class/gpio/gpioXX" the eMMc pin's voltage does not change. Whilst previously I did get the desired result (through Enabling all the gpio pins <https://stackoverflow.com/questions/47635808/enable-all-gpio-pins-on-beaglebone-including-the-emmc-pins>) it was at the cost of disabling the HDMI, which in my scenario I can't afford. Can anyone please give me clues/suggestions on how I could over my issue? System info: My system is running on the " Debian 9.1 2017-08-31 4GB SD LXQT <http://debian.beagleboard.org/images/bone-debian-9.1-lxqt-armhf-2017-08-31-4gb.img.xz>" image acquired from BBB_Image <https://beagleboard.org/latest-images> My kernel version is: 4.9.45-ti-r57 Kind regards, Augustas -- 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/eb4f2df8-bb80-4fe1-9d3b-0e0f5e9dd34e%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.