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Message-ID: <20091114102919.54606831@infradead.org>
Date: Sat, 14 Nov 2009 10:29:19 -0800
From: Arjan van de Ven <arjan@...radead.org>
To: Robert Hancock <hancockrwd@...il.com>
Cc: venu <vjosyula@...il.com>, Roland Dreier <rdreier@...co.com>,
Philip Downer <phil@...devices.co.uk>,
linux-kernel@...r.kernel.org
Subject: Re: firmware loading interface
On Sat, 14 Nov 2009 12:19:13 -0600
Robert Hancock <hancockrwd@...il.com> wrote:
> On Sat, Nov 14, 2009 at 10:55 AM, venu <vjosyula@...il.com> wrote:
> > who triggers this upgrade from userspace ? I understand it is a
> > naivee / beginers questions but i hope somebody explains me how ?
>
> The request_firmware interface probably isn't suitable for that..
> using an ioctl or read/write-based interface, possibly on a separate
> device node, would likely be the way to go..
>
it's not unusual to have a sysfs attribute that, when written to, will
just do a request_firmware().
It's not pretty, but it's cleaner than the alternatives....
--
Arjan van de Ven Intel Open Source Technology Centre
For development, discussion and tips for power savings,
visit http://www.lesswatts.org
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