Advanced Configuration and Power Interface Specification

Advanced Configuration and Power Interface Specification
0x00000000 – AC Timer
0x00000001 – DC Timer
Arg1 – ExpiredTimerWakePolicy (Integer(DWORD)): indicates the expired timer wake policy:
0x00000000 – The timer will wake up the system instantly after the power source changes.
0x00000001 – 0xFFFFFFFE: time between the power source changes and the timer wakes up the
system (in units of second).
0xFFFFFFFF – The timer will never wake up the system after the power source changes.
Return Value:
An Integer containing a result code as follows:
0x00000000 – Succeeded to set the expired timer wake policy.
0x00000001 – Failed to set the timer policy. Actual timer policy unknown.
9.18.8 _STV (Set Timer Value)
This object is required and sets the timer to the specified value. As defined in _TIV, the value
indicates the number of seconds between the time when the timer is programmed and the time when
it expires. When the Wake Alarm device asserts the wake signal, the timer value is automatically
reset to 0xFFFFFFFF (disabled).
Arguments: (2)
Arg0 – TimerIdentifier (Integer (DWORD)): indicates the timer to be set:
0x00000000 – AC Timer
0x00000001 – DC Timer
Arg1 – TimerValue (Integer): indicates the value to be set.
Return Value:
An Integer containing a result code as follows:
0x00000000 – Succeeded to set timer value.
0x00000001 – Failed to set timer value. Actual timer value unknown.
9.18.9 _TIP (Expired Timer Wake Policy)
This object is required and returns the current expired timer wake policy setting of the specified
timer.
Arguments: (1)
Arg0 – TimerIdentifier (Integer (DWORD)): indicates the timer to be read:
0x00000000 – AC Timer
0x00000001 – DC Timer
Return Value:
An Integer (DWORD) containing current expired timer wake policy:
0x00000000 – The timer will wake up the system instantly after the power source changes
546 April, 2015 Version 6.0