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ROOTHUB_20PORT_INFO structure (ucxroothub.h)

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Provides information about a USB 2.0 root hub port. This structure is passed by UCX in the EVT_UCX_ROOTHUB_GET_20PORT_INFO callback function.

Syntax

typedef struct _ROOTHUB_20PORT_INFO {
  USHORT                               PortNumber;
  UCHAR                                MinorRevision;
  UCHAR                                HubDepth;
  TRISTATE                             Removable;
  TRISTATE                             IntegratedHubImplemented;
  TRISTATE                             DebugCapable;
  CONTROLLER_USB_20_HARDWARE_LPM_FLAGS ControllerUsb20HardwareLpmFlags;
} ROOTHUB_20PORT_INFO, *PROOTHUB_20PORT_INFO;

Members

PortNumber

The USB 2.0 root hub port number.

MinorRevision

Minor revision number.

HubDepth

The hub depth limit.

Removable

A TRISTATE value that indicates if the port is removable.

IntegratedHubImplemented

A TRISTATE value that indicates if the port is implemented.

DebugCapable

A TRISTATE value that indicates if the port is debug capable.

ControllerUsb20HardwareLpmFlags

A value that indicates Link Power Management (LPM) flags for the controller.

Requirements

Requirement Value
Header ucxroothub.h (include Ucxclass.h)