From: Pavel Machek <pavel@ucw.cz>
To: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH, RFC] Driver for reading HP laptop LCD brightness
Date: Sun, 5 Feb 2006 22:49:22 +0100 [thread overview]
Message-ID: <20060205214922.GA3681@elf.ucw.cz> (raw)
In-Reply-To: <20060205135517.GA21795@srcf.ucam.org>
Hi!
> The attached patch provides a sysfs mechanism for reading the LCD
> brightness on HP laptops. Since there's no clean way to determine
> whether a machine is a laptop or not from within the kernel (this
> information is in the DMI tables, but we don't currently export the
> chassis field), it does nothing until userspace has enabled it.
Can you fix the DMI code to export chasis, then?
> Right now, I'm looking for comments on how to integrate it sensibly -
> leaving it under drivers/misc and registering it as a platform device
> /works/, but isn't terribly clean.
Lots of handhelds ave brightness settings, and it is *very* important
there. Perhaps you could use same interface?
Pavel
--
Thanks, Sharp!
prev parent reply other threads:[~2006-02-05 21:52 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-05 13:55 [PATCH, RFC] Driver for reading HP laptop LCD brightness Matthew Garrett
2006-02-05 14:27 ` Arjan van de Ven
2006-02-05 14:34 ` Matthew Garrett
2006-02-05 14:41 ` Arjan van de Ven
2006-02-05 14:45 ` Matthew Garrett
2006-02-05 21:49 ` Pavel Machek [this message]
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