Adding SetLCDBrightness and GetLCDBrightess for PMU users, and other fixes

[David Zeuthen]

Hey,

Sorry for the lag,

On Tue, 2005-11-15 at 22:07 +0000, Richard Hughes wrote:
> On Wed, 2005-11-02 at 10:47 -0500, David Zeuthen wrote:
> > On Tue, 2005-11-01 at 14:56 +0000, Richard Hughes wrote:
> > > Can somebody test this on a powerbook / ibook please and check I've not
> > > broken anything. It should all be okay as it's pretty standard stuff.
> > 
> > At the moment my Powerbook 12" doesn't run Linux. Even if it did the LCD
> > brightness cannot be adjusted (because of driver limitations) - do you
> > plan to have a whitelist for this?
> 
> Do you want me to implement a white-list or a blacklist (using an FDI
> file)?
> 

Nah, I guess it's fine if the SetBrightness / GetBrightness methods just
throw an exception when called and the hardware don't support it.

Cheers,
David