backlight control broken in current Linus' and Paulus' trees

[Aristeu Sergio Rozanski Filho]

Hi,
	the backlight control is broken in my PowerBook6,8 in latest git
	trees, both for pbbuttonsd (yes, I have CONFIG_PMAC_BACKLIGHT_LEGACY
	enabled) and for fblevel. the last one also allows values be set
	at least to 1000 and according to new code, it should be able to
	reach 127. I gathered some information in
		http://www.cathedrallabs.org/~aris/backlight/
	if I can provide any other information or help in testing,
	please let me know.

-- 
Aristeu