JohnF

This seems like a really simple problem, but I can't find any pointers on any forums. I am running a NanoPiNEO2 (Allwinner H5) using the latest Armbian build DISTRIB_ID=Ubuntu DISTRIB_RELEASE=16.04 DISTRIB_CODENAME=xenial DISTRIB_DESCRIPTION="Ubuntu 16.04.3 LTS" I am trying all ways to save power. For most of the time, I do not need to use the Ethernet interface (I am using the USB interfaces for comms). I have tried all the obvious commands such as ifdown, and explored ethtool, but nothing I do makes any difference to the current consumption of the device. I expect i am missing something obvious - any help gratefully accepted.

I had the same issue with wiringNP on nanoPi NEO. The issue was resolved by adding a line to the file "boardtype_friendlyelec.c" in the array "BoardHardwareInfo gAllBoardHardwareInfo[]" The line added is: {"sun8i", 0, NanoPi_NEO, "NanoPi-NEO-Armbian", "-1(-1)"}, The critical parameter is the -1(-1), which is the board type reported by the kernel for this board. I have not carried our thorough testing, but the gpio readall reports properly and I am able to toggle outputs and read inputs correctly using the gpio command.