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BDCB_STATUS_UPDATE_TYPE enumeration (ntddk.h)

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The BDCB_STATUS_UPDATE_TYPE enumeration lists the types of boot-driver callback status updates.

Syntax

typedef enum _BDCB_STATUS_UPDATE_TYPE {
  BdCbStatusPrepareForDependencyLoad,
  BdCbStatusPrepareForDriverLoad,
  BdCbStatusPrepareForUnload
} BDCB_STATUS_UPDATE_TYPE, *PBDCB_STATUS_UPDATE_TYPE;

Constants

 
BdCbStatusPrepareForDependencyLoad
Windows will start loading driver dependencies next.
BdCbStatusPrepareForDriverLoad
Windows has completed loading driver dependencies and will start loading boot-start drivers.
BdCbStatusPrepareForUnload
Windows has completed the initialization of all boot-start drivers. After the completion of this callback, the Boot Driver Callback Facility will be torn down and no more callbacks will be received. During this callback, Early Launch AM drivers must clean up and prepare to be unloaded.

Requirements

Requirement Value
Minimum supported client Available starting with Windows 8.
Header ntddk.h (include Ntddk.h)

See also

BDCB_STATUS_UPDATE_CONTEXT

BOOT_DRIVER_CALLBACK_FUNCTION