I have a script, that should turn off the usb power (i need to turn off smog-meter, in order to preserve laser). It should actually work in a way, that turns on, measures, turns off and waits for the next iteration. The code used I believe on A20 is:
/usr/bin/sunxi-pio -m PH26''
however it does not work on H2+
Any suggestion, what would work?