On Thu 2007-10-04 12:05:38, Oliver Neukum wrote:
quoted text
> Am Montag 01 Oktober 2007 schrieb Pavel Machek:
> > > > I guess that the SCSI layer is not really autosuspend-aware, is it?
> > > =

quoted text
> > > Not yet. =A0I would like it to become autosuspend-aware. =A0Oliver wa=
nts to
quoted text
> > > avoid that by keeping all the awareness in usb-storage. =A0(But then =
what
quoted text
> > > about all the other SCSI host-adapter drivers? =A0Will they each have
> > > their own way of deciding when a SCSI device can be suspended?)
> > =

quoted text
> > I think I'd prefer to have autosuspending in SCSI layer. That way, we
> > should be able to handle automatic disk spindowns nicely...
> =

quoted text
> OK, so this is the consensus. Then the question arises, how does a
> driver learn that all it's children have gone into autosuspend?

atomic_t variable in the parent, with children updating it and calling
parent's callback when it goes to 1->0 and 0->1?
									Pavel
-- =

(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo=
g.html

-------------------------------------------------------------------------
This SF.net email is sponsored by: Splunk Inc.
Still grepping through log files to find problems?  Stop.
Now Search log events and configuration files using AJAX and a browser.
Download your FREE copy of Splunk now >> http://get.splunk.com/
_______________________________________________
linux-usb-devel@lists.sourceforge.net
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel