DXGKARG_CONNECTDOORBELL_FLAGS structure (d3dkmddi.h)

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The DXGKARG_CONNECTDOORBELL_FLAGS structure specifies doorbell connection flags for DxgkDdiConnectDoorbell.

Syntax

typedef struct _DXGKARG_CONNECTDOORBELL_FLAGS {
  union {
    struct {
      UINT RequireSecondaryAddress : 1;
      UINT Reserved : 31;
    };
    UINT Value;
  };
} DXGKARG_CONNECTDOORBELL_FLAGS;

Members

RequireSecondaryAddress

If UMD created this doorbell with the RequireSecondaryCpuVA flag, then Dxgkrnl sets this corresponding RequireSecondaryAddress flag to inform KMD that this doorbell requires two physical addresses.

Reserved

Reserved; set to zero.

Value

An alternative way to access the structure members.

Requirements

Requirement	Value
Minimum supported client	WIN11_FUTURE
Header	d3dkmddi.h

See also

D3DKMT_CREATE_DOORBELL

DXGKARG_CONNECTDOORBELL

DxgkDdiConnectDoorbell