Getwakeuptime() - Intel Extensible Firmware Interface Specification

3.6.3

GetWakeupTime()

Summary
Returns the current wakeup alarm clock setting.
Prototype
EFI_STATUS
GetWakeupTime (
OUT BOOLEAN
OUT BOOLEAN
OUT EFI_TIME
);
Parameters
Enabled
Pending
Time
Description
The alarm clock time may be rounded from the set alarm clock time to be within the resolution of
the alarm clock device. The resolution of the alarm clock device is defined to be one second.
During runtime, if a PC-AT CMOS device is present in the platform the caller must synchronize
access to the device before calling GetWakeupTime().
Status Codes Returned
EFI_SUCCESS
EFI_INVALID_PARAMETER
EFI_DEVICE_ERROR
Version 1.02
*Enabled,
*Pending,
*Time
Indicates if the alarm is currently enabled or disabled.
Indicates if the alarm signal is pending and requires acknowledgement.
The current alarm setting. Type
The alarm settings were returned.
A time field is out of range.
The wakeup time could not be retrieved due to a hardware error.
12/12/00
is defined in Section 3.6.1.
EFI_TIME
Services
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