I'm using AD9361-7020 with ADRV1CRR-BOB and latest Kuiper Linux image. RF part with given setup works perfectly.
For my project i need to toogle one GPIO pin or LED from python or terminal.
at /sys/class/leds I see 4 leds. If I change brightness from 0 to 255 nothing happens. Led pins at P2-4, P13 3 and 4 , P7-16 stays equal to zero.
What i'm doing wrong?
I use these descriptions/schematics