linux-kernel - Re: uvcvideo causes ehci

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Message-Id: <200910220138.06878.laurent.pinchart@ideasonboard.com>
Date:	Thu, 22 Oct 2009 01:38:06 +0200
From:	Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:	Ozan Çağlayan <ozan@...dus.org.tr>
Cc:	Alan Stern <stern@...land.harvard.edu>,
	linux-media@...r.kernel.org,
	"linux-kernel" <linux-kernel@...r.kernel.org>,
	USB list <linux-usb@...r.kernel.org>
Subject: Re: uvcvideo causes ehci_hcd to halt

On Wednesday 21 October 2009 22:09:46 Ozan Çağlayan wrote:
> Laurent Pinchart wrote:
> > Probably because hal opens the device to query its capabilities and
> > closes it right after. The driver submits the interrupt URB when the
> > first user opens the device and cancels it when the last user closes the
> > device.
> 
> So who's guilty now?
> 
> :)

Not me :-)

I don't think there's anything wrong with submitting an interrupt URB and 
canceling it soon after.

-- 
Regards,

Laurent Pinchart
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