On Wed, Nov 29, 2017 at 7:27 AM, Mark A. Yoder <[email protected]> wrote:
> 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? > >> >> as root: echo xxx > /sys/class/gpio/unexport Where xxx == the gpioxxx value you wish to reclaim. So in the example case of gpio112 . . . echo 112 > /sys/class/gpio/unexport -- 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/CALHSORowPiviMa8crdCr%3Dt2W0iH9KUNE7H698WkSGZB%2Br3XUCA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
