IBM manual Set Hibernation, A-44 ThinkPad 560/560E SMAPI BIOS

Set Hibernation	Timer
Input Field
Major Function Number -		32h
Minor Function Number -		ð7h
Parameter 1	-	Reserved
Parameter 2	-	(Bit 15-	8) Reserved
		(Bit 7-	ð) Hibernation Timer during
			suspend mode initial value
			(units: minutes)
		= ððh -	Disable hibernation timer
Parameter 3	-	Reserved	during suspend mode
Parameter 4	-	Reserved
Parameter 5	-	Reserved
Output Field
Return Code	-	Error Status
Auxiliary Return Code -		Reserved
Parameter 1	-	Reserved
Parameter 2	-	Reserved
		Reserved
Parameter 3	-	Reserved
Parameter 4	-	Reserved
Parameter 5	-	Reserved

A-44ThinkPad 560/560E SMAPI BIOS