With bananian image power usage monitor works fine, do I need to test it also?
I powered the board through the OTG port, booted with Armbian kernel 3.4.109, and:
# cat /sys/devices/platform/sunxi-i2c.0/i2c-0/0-0034/axp20-supplyer.28/power_supply/usb/uevent
Still zero...So perhaps something is missing from this kernel?
By the way, is it possible to (implement) monitor power consumption with mainline kernel? I tried 4.3.3 and could find any sunxi-i2c bus in /sys. 'find /sys | grep voltage' returns nothing related to power consumption.