The user name is a part of the "gpio" group. I did try running sudo python3 from riaps user and moving to root user and running this again, but same issue is happening.
riaps : riaps adm kmem dialout cdrom floppy sudo audio dip video plugdev users systemd-journal bluetooth netdev i2c gpio pwm eqep admin spi tisdk weston-launch xenomai cloud9ide On Tuesday, July 9, 2019 at 4:42:37 PM UTC-5, Jim F wrote: > > Is your user a member of the gpio group? If the pin is already an output > and you don't have permission it seems reasonable that it might not fail. > > You could always sudo python to rule out a permissions problem, which is > what the error message says. Then solve the permissions problem. > > Have fun > > Jim > > On Tue, Jul 9, 2019, 5:06 PM <[email protected] <javascript:>> wrote: > >> >> I am unable to setup a GPIO pin as an input using the Adafruit_BBIO >> library. Setting the pin as an output works. Below is a simple version of >> what I want to do. I searched several chat groups (this and the adafruit >> forum) and the issues list for the Adafruit_BBIO library for ideas. I >> tried updating my bootloader (from U-Boot 2018.09-00002-g9d95a561c9 to >> U-Boot 2019.04-00002-gbb4af0f50f), but that did not have an impact. I am >> using a UART port, so the uboot_overlay is enabled. The image version used >> is based on the 9/11/18 release. I would prefer not to move to a newer >> release quite yet, but do plan to do so in about a month. Is there >> anything I can do here to make this work with this current setup? Please >> let me know what other information would be useful here. >> >> Python 3.6.7 (default, Oct 22 2018, 11:32:17) >> [GCC 8.2.0] on linux >> Type "help", "copyright", "credits" or "license" for more information. >> >>> import Adafruit_BBIO.GPIO as GPIO >> >>> GPIO.setup('P8_11', GPIO.OUT, GPIO.PUD_UP, 0, 100) >> >>> GPIO.output('P8_11', 1) >> >>> GPIO.input('P8_11') >> 1 >> >>> GPIO.cleanup('P8_11') >> >>> GPIO.setup('P8_11', GPIO.IN) >> Traceback (most recent call last): >> File "<stdin>", line 1, in <module> >> ValueError: Set gpio mode failed, missing file or invalid permissions. >> >> >> sudo /opt/scripts/tools/version.sh >> git:/opt/scripts/:[24f2e3495113a63c2dcc2c0bdc0d7660b54e4e8f] >> eeprom:[A335BNLT00C02016BBBK1A0B] >> model:[TI_AM335x_BeagleBone_Black] >> dogtag:[RIAPS console Ubuntu Image 2019-03-22] >> bootloader:[microSD-(push-button)]:[/dev/mmcblk0]:[U-Boot >> 2019.04-00002-gbb4af0f50f]:[location: dd MBR] >> kernel:[4.14.79-ti-rt-r84] >> uboot_overlay_options:[enable_uboot_overlays=1] >> >> uboot_overlay_options:[uboot_overlay_addr4=/lib/firmware/BB-UART2-00A0.dtbo] >> >> uboot_overlay_options:[uboot_overlay_pru=/lib/firmware/AM335X-PRU-UIO-00A0.dtbo] >> pkg check: to individually upgrade run: [sudo apt install --only-upgrade >> <pkg>] >> pkg:[bb-cape-overlays]:[4.4.20190320.1-0rcnee0~bionic+20190320] >> pkg:[bb-wl18xx-firmware]:[1.20190227.1-0rcnee0~bionic+20190227] >> pkg:[kmod]:[24-1ubuntu3.2rcnee0~bionic+20190208] >> WARNING:pkg:[librobotcontrol]:[NOT_INSTALLED] >> cmdline:[console=ttyO0,115200n8 bone_capemgr.uboot_capemgr_enabled=1 >> root=/dev/mmcblk0p1 ro rootfstype=ext4 rootwait coherent_pool=1M >> net.ifnames=0 quiet security=apparmor] >> dmesg | grep remote >> [ 1.849544] remoteproc remoteproc0: wkup_m3 is available >> [ 2.096540] remoteproc remoteproc0: powering up wkup_m3 >> [ 2.096675] remoteproc remoteproc0: Booting fw image >> am335x-pm-firmware.elf, size 217168 >> [ 2.099941] remoteproc remoteproc0: remote processor wkup_m3 is now up >> dmesg | grep pru >> >> uname -a >> Linux bbb-ff98 4.14.79-ti-rt-r84 #1 SMP PREEMPT RT Tue Nov 13 22:30:45 >> UTC 2018 armv7l armv7l armv7l GNU/Linux >> >> -- >> 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] <javascript:>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/beagleboard/36ab1b16-cceb-43ac-a49b-701579df7a7c%40googlegroups.com >> >> <https://groups.google.com/d/msgid/beagleboard/36ab1b16-cceb-43ac-a49b-701579df7a7c%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> For more options, visit https://groups.google.com/d/optout. >> > -- 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/befb4652-9f40-4354-bf71-00d47ab607fd%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
