Re: So, what's the status on the recent patches here?

Woodruff, Richard
2006-08-25T21:21:42Z

> > > ? Wouldn't suspending the entire bus completely stop the
throughput
> > of
> > > any attached device?
> >
> > Not necessarily (right?). If I shut off VBUS then yes then I need
to
> > re-enumerate for sure. One might figure out a cleaver way of
shutting
> > it off and turning it back on in between host requests.
>
> No, you can't do that. Without VBUS power there's no reliable way to
> detect disconnects or media changes.

That's a good point. I wonder in this case if it is possible to keep a
list of what was there. When you re-power if its not there, it should
be like it was disconnected, then act accordingly. If it is there all
is ok. It seems unlikely that the same PID/VID device would have
replaced it. New devices would show up as not being there before.

Coding that all up would likely be a bunch of work assuming it was
possible.

Thanks,
Richard W.