Checking for undervoltage/undercurrent on the Rock64's USB3 port?
Armbianmonitor:
http://ix.io/1KaS
Hey guys,
I heard that the USB3 port of the Rock64 outputs up to 950mA.
I have this external HD (WD My Passport), one of those 2,5'' external HDDs that are powered solely by the USB3 port. From what I've gathered, this should need no more than 650mA.
But it doesn't work on the Rock64.
After mounting the thing, if I try to write and read, it just disconnects with a bunch of dmesg errors. It make
The USB specification defines how much power a device is allowed to consume. So back in the days, some USB-HDD came with 2 USB-A cable (500mA per port), to feed the hungry device on USB 'only'.
With USB 3 this was increased to 900mA iirc - it is written in the internet or in one of TKs posts, ahh wait, he deleted everything here. So you must look it up in the net.