Re: [PATCH] Dell laptop backlight driver
- From: Matt Domsch <Matt_Domsch@xxxxxxxx>
- Date: Sun, 28 Oct 2007 11:19:55 -0500
On Sun, Oct 28, 2007 at 05:12:37PM +0100, jack@xxxxxxxxxxxxx wrote:
Hello,
this driver implements backlight control on Dell laptops
which use SMI for changing brightness levels.
The driver is INCOMPLETE since it is unable to probe some required
parameters
in order to perform backlight control. Such parameters are found in a Dell
proprietary DMI table which should be parsed. For now external tools may be
used to find these parameters by hand. So if you intend to try this out,
FIRST write your laptop model parameters correctly inside the source code
as explained in Documentation/dell-laptop.txt.
Parts of this driver may also be used to provide additional functionalities
similarly to the drivers/misc/*-laptop.c drivers.
Why is this better done in the kernel rather than in userspace with
libsmbios as you've noted?
--
Matt Domsch
Linux Technology Strategist, Dell Office of the CTO
linux.dell.com & www.dell.com/linux
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