linux-kernel - Re: [linux-usb-devel] [PATCH] USB: consolidate error values from EHCI, UHCI and OHCI

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Date:	Tue, 19 Sep 2006 16:32:47 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	David Brownell <david-b@...bell.net>
cc:	Jiri Kosina <jikos@...os.cz>, Andrew Morton <akpm@...l.org>,
	<dbrownell@...rs.sourceforge.net>, <weissg@...nna.at>,
	<linux-usb-devel@...ts.sourceforge.net>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [linux-usb-devel] [PATCH] USB: consolidate error values from
 EHCI, UHCI and OHCI _suspend()

On Tue, 19 Sep 2006, David Brownell wrote:

> Eventually we want hcd->state to vanish, but until it does it sure seems
> like a problem if usbcore can't rely on all HCDs to treat it the same.

uhci-hcd sets hcd->state wherever needed by usbcore, just as the other 
HCDs do.  (At least that was my intention -- if I missed setting it 
somewhere then the driver should be fixed.)

But uhci-hcd never reads hcd->state or tests its value.  I think that's 
what Jiri meant.

Alan Stern

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