IBM 560E manual Get System Event, A-35

Get System Event	1 Condition
Input Field
Major Function Number -		31h
Minor Function Number -		ððh
Parameter 1	-	Reserved
Parameter 2	-	Reserved
Parameter 3	-	Reserved
Parameter 4	-	Reserved
Parameter 5	-	Reserved
Output Field
Return Code	-	Error Status
Auxiliary Return Code -		Reserved
Parameter 1	-	Reserved
Parameter 2	-	hardware	and software
		event definition
		Bit 15-8 - Capability
		(See page A-32.)
		Bit 7-ð	- Condition
		(See page A-32.)
Parameter 3	-	Reserved
Parameter 4	-	(Bit 31-16) Reserved
		(Bit 15- ð) Power switch detection
			event definition
		Bit 15-8 - Capability
		(See page A-32.)
		Bit 7-ð	- Condition
		(See page A-32.)
Parameter 5	-	(Bit 31-16) Reserved
		(Bit 15- ð) LID close detection
			event definition
		Bit 15-8 - Capability
		(See page A-32.)
		Bit 7-ð	- Condition
		(See page A-32.)

ThinkPad 560/560E SMAPI BIOS A-35