This kext do nothing. Panel "Backlight" appers in registry but no more.
The link is dead because the kext never works.
I can propose use other solution for same purpose.
1. Make DSDT patch to insert the follow
CODE
Device (PNLF)
{
Name (_HID, EisaId ("APP0002"))
Name (_CID, "backlight")
Name (_UID, 0x0A)
Name (_STA, 0x0B)
}
Then replace IOGraphicsFamily to patched one.
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