CM_Power_Data_s - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// ntpoapi.h
typedef struct CM_Power_Data_s {
ULONG PD_Size;
DEVICE_POWER_STATE PD_MostRecentPowerState;
ULONG PD_Capabilities;
ULONG PD_D1Latency;
ULONG PD_D2Latency;
ULONG PD_D3Latency;
DEVICE_POWER_STATE PD_PowerStateMapping[POWER_SYSTEM_MAXIMUM];
SYSTEM_POWER_STATE PD_DeepestSystemWake;
} CM_POWER_DATA, *PCM_POWER_DATA;
View the official Windows Driver Kit DDI reference// wdm.h
typedef struct CM_Power_Data_s {
ULONG PD_Size;
DEVICE_POWER_STATE PD_MostRecentPowerState;
ULONG PD_Capabilities;
ULONG PD_D1Latency;
ULONG PD_D2Latency;
ULONG PD_D3Latency;
DEVICE_POWER_STATE PD_PowerStateMapping[POWER_SYSTEM_MAXIMUM];
SYSTEM_POWER_STATE PD_DeepestSystemWake;
} CM_POWER_DATA, *PCM_POWER_DATA;
View the official Windows Driver Kit DDI referenceNo description available.
The CM_POWER_DATA structure contains information about a device's power management state and capabilities.
PD_SizeThe size, in bytes, of this structure.
PD_MostRecentPowerStateA DEVICE_POWER_STATE value representing the device's most recent power state.
PD_CapabilitiesThe device's power capabilities, represented by a combination of the following bit flags:
PDCAP_D0_SUPPORTED
PDCAP_D1_SUPPORTED
PDCAP_D2_SUPPORTED
PDCAP_D3_SUPPORTED
PDCAP_WAKE_FROM_D0_SUPPORTED
PDCAP_WAKE_FROM_D1_SUPPORTED
PDCAP_WAKE_FROM_D2_SUPPORTED
PDCAP_WAKE_FROM_D3_SUPPORTED
PDCAP_WARM_EJECT_SUPPORTED
PD_D1LatencyThe device's latency when returning the D0 state from the D1 state. For more information, see the D1Latency member of DEVICE_CAPABILITIES.
PD_D2LatencyThe device's latency when returning the D0 state from the D2 state. For more information, see the D2Latency member of DEVICE_CAPABILITIES.
PD_D3LatencyThe device's latency when returning the D0 state from the D3 state. For more information, see the D3Latency member of DEVICE_CAPABILITIES.
PD_PowerStateMappingAn array of DEVICE_POWER_STATE values representing the maximum device power state achievable for each system power state. For more information, see the DeviceState member of DEVICE_CAPABILITIES.
PD_DeepestSystemWakeSpecifies the least-powered system state from which the device can wake the system. PD_DeepestSystemWake typically indicates one of the system sleeping states, S1, S2, or S3 (as specified by PowerSystemSleeping1, PowerSystemSleeping2, and PowerSystemSleeping3, respectively). Note, however, that some devices might be able to wake the system from the system hibernate state, S4 (as specified by PowerSystemHibernate), or even from the system shutdown state, S5 (as specified by PowerSystemShutdown).
SetupDiGetDeviceRegistryProperty
The CM_POWER_DATA structure contains information about a device's power management state and capabilities.
PD_SizeThe size, in bytes, of this structure.
PD_MostRecentPowerStateA DEVICE_POWER_STATE value representing the device's most recent power state.
PD_CapabilitiesThe device's power capabilities, represented by a combination of the following bit flags:
PDCAP_D0_SUPPORTED
PDCAP_D1_SUPPORTED
PDCAP_D2_SUPPORTED
PDCAP_D3_SUPPORTED
PDCAP_WAKE_FROM_D0_SUPPORTED
PDCAP_WAKE_FROM_D1_SUPPORTED
PDCAP_WAKE_FROM_D2_SUPPORTED
PDCAP_WAKE_FROM_D3_SUPPORTED
PDCAP_WARM_EJECT_SUPPORTED
PD_D1LatencyThe device's latency when returning the D0 state from the D1 state. For more information, see the D1Latency member of DEVICE_CAPABILITIES.
PD_D2LatencyThe device's latency when returning the D0 state from the D2 state. For more information, see the D2Latency member of DEVICE_CAPABILITIES.
PD_D3LatencyThe device's latency when returning the D0 state from the D3 state. For more information, see the D3Latency member of DEVICE_CAPABILITIES.
PD_PowerStateMappingAn array of DEVICE_POWER_STATE values representing the maximum device power state achievable for each system power state. For more information, see the DeviceState member of DEVICE_CAPABILITIES.
PD_DeepestSystemWakeSpecifies the least-powered system state from which the device can wake the system. PD_DeepestSystemWake typically indicates one of the system sleeping states, S1, S2, or S3 (as specified by PowerSystemSleeping1, PowerSystemSleeping2, and PowerSystemSleeping3, respectively). Note, however, that some devices might be able to wake the system from the system hibernate state, S4 (as specified by PowerSystemHibernate), or even from the system shutdown state, S5 (as specified by PowerSystemShutdown).
SetupDiGetDeviceRegistryProperty