linux-kernel - Re: [PATCH] Firmware loader driver for USB Apple iSight camera

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Message-Id: <200805210008.58910.oliver@neukum.org>
Date:	Wed, 21 May 2008 00:08:57 +0200
From:	Oliver Neukum <oliver@...kum.org>
To:	Matthew Garrett <mjg59@...f.ucam.org>
Cc:	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	gregkh@...e.de, bersace03@...oste.net, johannes@...solutions.de
Subject: Re: [PATCH] Firmware loader driver for USB Apple iSight camera

Am Mittwoch 21 Mai 2008 00:03:04 schrieb Matthew Garrett:
> On Tue, May 20, 2008 at 11:59:05PM +0200, Oliver Neukum wrote:
> 
> > How does that simplify suspend/resume?
> > If the device looses its firmware due to suspend you must implement
> > this support in uvc, or a user space driver will be as good as this solution.
> 
> If it loses its firmwrare, it'll reattach with the old ID.

Thereby breaking the binding to the uvc driver. It'll be considered
a new device. You might just as well load the firmware through usbfs
triggered by udev.

If you really want to fix this you'd have to extend the persist
infrastructure first.

	Regards
		Oliver

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