Re: USB storage powersaving patches

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On Tue, 18 Dec 2007, Pavel Machek wrote:

> Hi!
> 
> > On Mon, 17 Dec 2007, Pavel Machek wrote:
> > 
> > > ...are they available somewhere? I'd like to do something similar for
> > > AHCI, but so far SCSI seems to be winning...
> > 
> > The usb-storage dynamic power management patches have been removed for 
> > the time being, because they don't respect the SCSI stack.
> > 
> > I intend to spend some time over the holidays on adding dynamic power 
> > management to the SCSI core.  That should allow us to put the 
> > usb-storage PM stuff back (in modified form), and it should allow you 
> > to do the same sort of thing with AHCI.  Does that sound okay?
> 
> Do you think I could get a copy of some version of those patches? I'm
> currently struggling with getting AHCI to powersave in _any_ way,
> "clean" is not on radar, yet.

The usb-storage patch is here:

	http://marc.info/?l=linux-usb-devel&m=118374628105232&w=2

I'm afraid it won't do you much good, however, because of the way it 
relies on the USB power-management infrastructure.

Alan Stern

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