[prev in list] [next in list] [prev in thread] [next in thread] 

List:       linux-usb-devel
Subject:    [linux-usb-devel] Re: More about USB PM
From:       Alan Stern <stern () rowland ! harvard ! edu>
Date:       2003-08-30 18:30:55
[Download RAW message or body]

On Fri, 29 Aug 2003, David Brownell wrote:

> Alan Stern wrote:
> 
> > 	usb_hcd_pci_suspend() checks that hcd->state isn't already
> > SUSPENDED or HALT.  If not, it calls driver->suspend() and then sets
> > hcd->state to SUSPENDED.
> 
> That does sort of "know" that the only non-running states are
> SUSPENDED and HALT, yes ... and also, that the request isn't
> going to be vetoed.
> 
> I can understand wanting either the glue or the hcd to be
> able to veto suspending.  Does vetoing work yet?  I can't
> suspend at all, because of at least the IDE problems.

I have no idea.  I was able to suspend successfully as of a few months 
ago; haven't tried it recently.  Hint: Don't try to suspend if you're 
running an SMP kernel!


> When we veto suspends, then the reset() call should work a bit
> differently.  But we're not there yet.

I'm not following you.  What's the connection between reset() and vetoing 
a suspend?

Alan Stern



-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf
_______________________________________________
linux-usb-devel@lists.sourceforge.net
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
[prev in list] [next in list] [prev in thread] [next in thread]