linux-kernel - Re: firmware loading interface

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Message-ID: <20091201091435.GB16910@core.coreip.homeip.net>
Date:	Tue, 1 Dec 2009 01:14:35 -0800
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Roland Dreier <rdreier@...co.com>
Cc:	Philip Downer <phil@...devices.co.uk>, linux-kernel@...r.kernel.org
Subject: Re: firmware loading interface

On Fri, Nov 13, 2009 at 04:35:01PM -0800, Roland Dreier wrote:
> 
>  > However our device will have flash to store the firmware in and, whilst
>  > it looks as though it would be possible for us to use request_firmware
>  > to provide occasional firmware upgrades from userspace, I can't find any
>  > reference as to whether this is an accepted method for doing so. Could
>  > someone please confirm for me whether or not it's a good idea to use
>  > request_firmware for this, or perhaps point me at another standard
>  > method for doing firmware updates from userspace?
> 
> I think request_firmware() is fine for this... you could have a look at
> drivers/net/cxgb3 to see a device that writes new firmware to flash when
> it detects a version mismatch between driver and device.
> 

Doesn't dell_rbu also uses request-firmware for flashing BIOS?

-- 
Dmitry
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