Re: [PATCH v4 1/5] gadget: Introduce the notifier functions

Hi!

quoted

What's the advantage of pushing this to userspace?  By the time we
provide enough discoverability to enable userspace to configure itself
it seems like we'd have enough information to do the job anyway.

you're going to be dealing with a setup where each vendor does one thing
differently. Some will have it all in the SoC part of a single IP (dwc3 can be
configured that way), some will push it out to companion IC, some might even use
some mostly discrete setup and so on...

We're gonna be dealing with a decision that involves information from multiple
subsystems (USB, regulator, hwmon, power supply to name a few).

We tried doing it all in the kernel back in N800, N810 and N900/N9 days and it's
just plain difficult. To make matters worse, N900 had two USB PHYs, one for
actual runtime use and another just for detecting the charger type on the other
end.

N900 does charging from kernel these days.

Not being able to boot generic distribution would be regression there...

										Pavel