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From: Rui Paulo <rpaulo@gmail.com>
To: Ed Schouten <ed@80386.nl>
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Date: Wed, 28 Jan 2009 14:29:00 +0000
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Cc: FreeBSD Hackers <freebsd-hackers@freebsd.org>,
	Daniel Lannstrom <op@trekdanne.se>
Subject: Re: Mackbook pro nvidia based video backlight
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On 28 Jan 2009, at 13:43, Ed Schouten wrote:

> * Daniel Lannstrom <op@trekdanne.se> wrote:
>>> I'm asking which method will be the best to interface the driver  
>>> with
>>> userland applications?
>>
>> You might want to make it a character device driver. And write a  
>> small
>> userland control program. Sysctl isn't really made for this kind of
>> functionality.
>
> No. sysctl is good for doing stuff like this. An even better approach
> would be to integrate it to the X11 driver, but I guess it will be  
> cold
> day in hell when this happens.

Not really. The xorg intel driver is already able to deal with this.
I don't know about NVIDIA.

--
Rui Paulo