USB_NODE_CONNECTION_INFORMATION_EX_V2 structure (usbioctl.h)

The USB_NODE_CONNECTION_INFORMATION_EX_V2 structure is used with the IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX_V2 I/O control request to retrieve speed information about a Universal Serial Bus (USB) device that is attached to a particular port.

Syntax

typedef struct _USB_NODE_CONNECTION_INFORMATION_EX_V2 {
  ULONG                                       ConnectionIndex;
  ULONG                                       Length;
  USB_PROTOCOLS                               SupportedUsbProtocols;
  USB_NODE_CONNECTION_INFORMATION_EX_V2_FLAGS Flags;
} USB_NODE_CONNECTION_INFORMATION_EX_V2, *PUSB_NODE_CONNECTION_INFORMATION_EX_V2;

Members

ConnectionIndex

The port number. If there are n ports on the USB hub, the ports are numbered from 1 to n. To get the number of ports, send the IOCTL_USB_GET_HUB_INFORMATION_EX I/O control request. The request retrieves the highest port number on the hub.

Length

The number of bytes that are required to hold the USB_NODE_CONNECTION_INFORMATION_EX_V2 structure. The value must be set by the caller as input to the IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX_V2 request.

SupportedUsbProtocols

The USB signaling protocols that are supported by the port.

In the caller's IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX_V2 request, the caller can set SupportedUsbProtocols to a bitwise OR of one or more flags defined in USB_PROTOCOLS.

Upon completion of the request, SupportedUsbProtocols contains flags, which indicate the protocols that are actually supported by the port.

Flags

A bitmask that indicates the properties and capabilities of the attached device or port. For more information, see USB_NODE_CONNECTION_INFORMATION_EX_V2_FLAGS.

Requirements

See also

IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX_V2

USB_NODE_CONNECTION_INFORMATION_EX_V2_FLAGS