// usbioctl.h

typedef union _USB_PORT_PROPERTIES {
  ULONG  ul;
  struct {
    ULONG PortIsUserConnectable : 1;
    ULONG PortIsDebugCapable : 1;
    ULONG PortHasMultipleCompanions : 1;
    ULONG PortConnectorIsTypeC : 1;
    ULONG ReservedMBZ : 28;
  };
} USB_PORT_PROPERTIES, *PUSB_PORT_PROPERTIES;
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Windows Driver Kit DDI reference (ns-usbioctl-_usb_port_properties)

_USB_PORT_PROPERTIES structure

Description

The USB_PORT_PROPERTIES union is used to report the capabilities of a Universal Serial Bus (USB) port.

The port capabilities are retrieved in the USB_PORT_CONNECTOR_PROPERTIES structure by the IOCTL_USB_GET_PORT_CONNECTOR_PROPERTIES I/O control request.

Members

`ul`

A bitmask that indicates the properties and capabilities of the port.

`PortIsUserConnectable`

If TRUE, the port is visible to the user and a USB device can be attached to or detached from the port.

`PortIsDebugCapable`

If TRUE, the port supports debugging over a USB connection.

`PortHasMultipleCompanions`

`PortConnectorIsTypeC`

`ReservedMBZ`

Reserved. Do not use.

USB_PORT_PROPERTIES - NtDoc