Re: USB D3 vs system S3

[Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>]

On Wed, 9 Jan 2008, Carlos Corbacho wrote:

> On Wednesday 09 January 2008 16:07:04 Alan Stern wrote:
> > Currently there's no need to change anything.
> 
> Ok.
> 
> > The USB autosuspend code affects only the controller's USB interface --
> > it doesn't touch the PCI side.  An autosuspended controller will remain
> > in D0.  Until somebody tries writing autosuspend code for PCI
> > devices...
> 
> Is this likely to happen?

I don't know of anybody working on it.  A minimal prerequisite is that 
PCI runtime wakeup processing needs to work right -- which it doesn't.  
See 

	http://bugzilla.kernel.org/show_bug.cgi?id=6892

Alan Stern


-------------------------------------------------------------------------
Check out the new SourceForge.net Marketplace.
It's the best place to buy or sell services for
just about anything Open Source.
http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace
_______________________________________________
linux-usb-devel@xxxxxxxxxxxxxxxxxxxxx
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel