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Date: Sun, 27 Jul 2003 10:57:53 -0400 (EDT)
From: Alan Stern <stern@rowland.harvard.edu>
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To: Pavel Machek <pavel@ucw.cz>
cc: David Brownell <david-b@pacbell.net>,
       Benjamin Herrenschmidt <benh@kernel.crashing.org>,
       Dominik Brugger <ml.dominik83@gmx.net>,
       kernel list <linux-kernel@vger.kernel.org>,
       <linux-usb-devel@lists.sourceforge.net>
Subject: Re: [linux-usb-devel] Re: OHCI problems with suspend/resume
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On Sat, 26 Jul 2003, Pavel Machek wrote:

> Hi!
> 
> > >>I'm not sure how the design is intended to work, but either way something 
> > >>needs to be fixed.
> > 
> > Yes, it seems like all the HCDs (and the hub driver) need attention.
> 
> Why the hub driver?
> 
> For basic functionality, you simply power it down (doing virtual
> unplug), and power it back up on resume (doing virtual plug of all
> devices). That should work reasonably for everything but mass-storage.

Almost correct.  It's also necessary to stop/reinitialize a periodic
status request.

None of this functionality has been implemented yet.

Alan Stern