I don't understand the implementation, it's pretty nuts. And the multiple layers of optional features and fragmentation are pretty awful. I kinda wish they h

I don't understand the implementation, it's pretty nuts. And the multiple layers of optional features and fragmentation are pretty awful. I kinda wish they hadn't specified any power levels other than 5v and full programmable PPS.... I also wish they had implemented a dedicated solar profile to simplify solar generators, so a panel could say "I will act like a current source and do MPPT". They probably could have done Dallas One Wire for the signalling and been just fine. It could also be how the cable chip communicates, and very small simple devices could use it without the full USB stack. But, I can accept it just because of how well it works in practice as is.