So I know that my RPi (Model B, 512MB, rev. 000f) can be backfed over the internal USB hub via an external, powered hub. But I also heard, that operating the RPi this way is not very safe if the powered hub does no good job at overvoltage protection. The thing is, I don't know how much of that applies to my revision or how much of that is outdated information.
I know that my Hub (LogiLink UA0085, powered) will backfeed into the RPi. (I don't have it yet myself, but other users have reported that it does)
What I don't know is: is it still backfeeding if I connect the RPi's micro USB power port to a Hub port? (i.e: will the 'correct' power line drown out the 'incorrect', backfed, line and thus make the whole operation safe again? I have seen this looped setup a few times [with this precise hub even], but I don't know for sure.)
Or is it actually completely safe to operate my RPi using only backfeeding by now due to some hardware changes I didn't catch?
I have not found *definite* information regarding that and I'd very much like to not have to have two separate power plugs (for the RPi *and* the hub).
Thanks to anyone who can help me out!