iPXE
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This provides the capabilities of the real time clock device as exposed through the EFI interfaces. More...
#include <UefiSpec.h>
Data Fields | |
UINT32 | Resolution |
Provides the reporting resolution of the real-time clock device in counts per second. More... | |
UINT32 | Accuracy |
Provides the timekeeping accuracy of the real-time clock in an error rate of 1E-6 parts per million. More... | |
BOOLEAN | SetsToZero |
A TRUE indicates that a time set operation clears the device's time below the Resolution reporting level. More... | |
This provides the capabilities of the real time clock device as exposed through the EFI interfaces.
Definition at line 795 of file UefiSpec.h.
UINT32 EFI_TIME_CAPABILITIES::Resolution |
Provides the reporting resolution of the real-time clock device in counts per second.
For a normal PC-AT CMOS RTC device, this value would be 1 Hz, or 1, to indicate that the device only reports the time to the resolution of 1 second.
Definition at line 802 of file UefiSpec.h.
UINT32 EFI_TIME_CAPABILITIES::Accuracy |
Provides the timekeeping accuracy of the real-time clock in an error rate of 1E-6 parts per million.
For a clock with an accuracy of 50 parts per million, the value in this field would be 50,000,000.
Definition at line 809 of file UefiSpec.h.
BOOLEAN EFI_TIME_CAPABILITIES::SetsToZero |
A TRUE indicates that a time set operation clears the device's time below the Resolution reporting level.
A FALSE indicates that the state below the Resolution level of the device is not cleared when the time is set. Normal PC-AT CMOS RTC devices set this value to FALSE.
Definition at line 817 of file UefiSpec.h.