xx_Brightness.txt

# Please Note:
#
# These patches were created just to test out some functionality in my version of VoodooPS2Keyboard.
# They add the necessary methods to allow the screen brightness control methods to be accessed
# from the keyboard driver.
#
# These methods inside the PS2K device simply forward their requests on to the standard
# ACPI brightness methods in the IGPU device.
# 
# This was implemented to see if the methods would work with the Probook as the native screen
# brightness functionality is not 100%. Unfortunately, they didn't work at all.
#

into method label KBCL parent_label PS2K remove_entry;
into method label KBCM parent_label PS2K remove_entry;
into method label KBQC parent_label PS2K remove_entry;

into device label PS2K insert
begin
Method (KBCL, 0, Serialized) { Return (\_SB.PCI0.IGPU.DD02._BCL ()) }
Method (KBCM, 1, Serialized) { \_SB.PCI0.IGPU.DD02._BCM (Arg0) }
Method (KBQC, 0, Serialized) { Return (\_SB.PCI0.IGPU.DD02._BQC()) }
end;