03-23-2016, 06:27 AM
echo 1 > /sys/class/gpio/export
echo "out" > /sys/class/gpio/gpio1/direction
return error:
-bash: echo: write error: Unknown error 517
see:
http://linux-sunxi.org/GPIO
echo "out" > /sys/class/gpio/gpio1/direction
return error:
-bash: echo: write error: Unknown error 517
see:
http://linux-sunxi.org/GPIO