// d3dkmddi.h

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;
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Windows Driver Kit DDI reference (ns-d3dkmddi-dxgk_connection_usb4_info)

Description

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

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.

DXGK_CONNECTION_USB4_INFO - NtDoc