Laptop Panel brightness control

[Crispin Flowerday]

On Mon, 2006-05-22 at 22:30 +0200, Timo Hoenig wrote:
> 
> > I'm not sure it's important exactly _what_ generates the event (I think
> > it's some input device created by kernel driver, maybe USB HID, Crispin
> > can probably clarify here). 
> 
> It does matter.  This makes it difficult.

For me, on ubuntu dapper, it comes via 'thinkpad-keys' which is in the
'hotkey-setup' package. This reads the status directly from nvram, and
passes it onto /dev/input/uinput (after some processing).

If I trace things correctly, it is then picked up by a
'hald-addon-keyboard' process via /dev/input/event3, and passed on to
user-space.

Crispin