That fixed it. Thanks... Now I see all sorts of gpios are already exported. export gpio114 gpio13 gpio22 gpio30 gpio46 gpio50 gpio66 gpiochip0 gpio110 gpio115 gpio14 gpio23 gpio31 gpio47 gpio51 gpio67 gpiochip32 gpio111 gpio116 gpio15 gpio26 gpio4 gpio48 gpio60 gpio68 gpiochip64 gpio112 gpio117 gpio2 gpio27 gpio44 gpio49 gpio61 gpio69 gpiochip96 gpio113 gpio12 gpio20 gpio3 gpio45 gpio5 gpio65 gpio7 unexport
I want to unexport a couple (14, 113 and 115) so the *fbtft_device* kernel driver and access them. But I get and error echo: write error: Invalid argument How do I unexport them? --Mark On Tuesday, November 28, 2017 at 9:06:56 PM UTC-5, RobertCNelson wrote: > > On Tue, Nov 28, 2017 at 8:02 PM, Mark A. Yoder <[email protected] > <javascript:>> wrote: > > bone$ dpkg --list | grep cape > > ii bb-cape-overlays > > 4.4.20171120.0-0rcnee1~stretch+20171120 armhf Device tree > > overlays for Beaglebone. > > ii roboticscape > > 0.3.4-git20170602-0rcnee4~stretch+20171108 armhf Robotics Cape > > Library and Examples > > > > Mine looks recent. Any suggestions on a fix? > > > > --Mark > > > > This might help... > > bone$ sudo /opt/scripts/tools/version.sh > > git:/opt/scripts/:[e5c23dc2a45f5c9ace291dd32e7c3d79edc1932d] > > eeprom:[A335BNLT000C3114BBBK1969] > > model:[TI_AM335x_BeagleBone_Black] > > dogtag:[BeagleBoard.org Debian Image 2017-11-26] > > bootloader:[microSD-(push-button)]:[/dev/mmcblk0]:[U-Boot > > 2017.11-00002-g7b415acfc1] > > bootloader:[eMMC-(default)]:[/dev/mmcblk1]:[U-Boot > 2015.01-00001-gb2412df] > > There's the issue, old u-boot in eMMC, so all teh U-Boot stuff is > ignored.. and thus nothing is in sync.. ;) > > sudo dd if=/dev/zero of=/dev/mmcblk1 count=1 seek=1 bs=128k > > Regards, > > > -- > Robert Nelson > https://rcn-ee.com/ > -- 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/842a6b22-b84e-495e-bc21-5e647dd3cf87%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
