Hacker News new | ask | show | jobs
by Sholmesy 2671 days ago
Disable the USB controller?
1 comments
megous 2671 days ago
It's necessary to negotiate the power requirements.
link
Sholmesy 2671 days ago
I did not know this, that is interesting.

As in, the OS driver for the USB controller? Feels like a lot.

link
megous 2669 days ago
Google USB-PD. Devices on either end of the USB cable could be dumb, and it would revert to some base minimum requirements (5V 500/900mA or so). But notebook may not be able to negotiate for higher power or higher voltage for charging.
link