linux-kernel - Re: Class device namespaces

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Message-ID: <20090428215844.GA1396@sysman-doug.us.dell.com>
Date:	Tue, 28 Apr 2009 16:58:44 -0500
From:	Doug Warzecha <Douglas_Warzecha@...l.com>
To:	Kay Sievers <kay.sievers@...y.org>
Cc:	Jean Delvare <khali@...ux-fr.org>,
	Michael Brown <mebrown@...haels-house.net>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	linux-kernel@...r.kernel.org,
	Mauro Carvalho Chehab <mchehab@...radead.org>,
	Matt Domsch <Matt_Domsch@...l.com>
Subject: Re: Class device namespaces

On Tue, Apr 28, 2009 at 07:46:57PM +0200, Kay Sievers wrote:
> On Tue, Apr 28, 2009 at 19:39, Doug Warzecha <Douglas_Warzecha@...l.com> wrote:
> 
> > /sys/class/firmware/dell_rbu/loading
> > /sys/class/firmware/dell_rbu/data
> 
> These pathes only ever exist for a fraction of a second, during a
> kernel initiated firmware request. This request is usually only
> handled by the udev firmware loader script, and not interesting for
> anything else. Are you replacing the udev firmware script here? Are
> you sure you do something else here?

A Dell library writes data to those paths when a Dell BIOS Update Package is run and requests the BIOS image to be loaded into memory.

Doug

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