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DXGK_CONNECTION_USB4_INFO structure (d3dkmddi.h)

  • Article

A driver that supports USB4 returns information in a DXGK_CONNECTION_USB4_INFO structure when a new monitor connected over USB4 arrives.

Syntax

typedef struct _DXGK_CONNECTION_USB4_INFO {
  UINT Dpcd_DP_IN_Adapter_Number;
  UINT Dpcd_USB4_Driver_ID;
  BYTE Dpcd_USB4_ROUTER_TOPOLOGY_ID[5];
} DXGK_CONNECTION_USB4_INFO, *PDXGK_CONNECTION_USB4_INFO;

Members

Dpcd_DP_IN_Adapter_Number

Uniquely identifies the DisplayPort-IN adapter on the USB4 device.

Dpcd_USB4_Driver_ID

Uniquely identifies the host router in the system.

Dpcd_USB4_ROUTER_TOPOLOGY_ID[5]

Uniquely identifies the USB4 device in the host router domain.

Remarks

See Supporting DisplayPort monitors over USB4 in KMD for more information.

Requirements

Requirement Value
Minimum supported client Windows 11 (WDDM 3.0)
Header d3dkmddi.h

See also

DXGKARG_QUERYCONNECTIONCHANGE