IOCTL_INTERNAL_USB_GET_TOPOLOGY_ADDRESS IOCTL (usbioctl.h)
The IOCTL_INTERNAL_USB_GET_TOPOLOGY_ADDRESS I/O request returns information about the host controller the USB device is attached to, and the device's location in the USB device tree.
IOCTL_INTERNAL_USB_GET_TOPOLOGY_ADDRESS is a kernel-mode I/O control request. This request targets the USB hub PDO. This request must be sent at an IRQL of DISPATCH_LEVEL or lower.
Major code
IRP_MJ_INTERNAL_DEVICE_CONTROL
Input buffer
Parameters.Others.Argument1 points to a USB_TOPOLOGY_ADDRESS structure to receive the device topology information.
Input buffer length
The size of a USB_TOPOLOGY_ADDRESS structure.
Output buffer
Parameters.Others.Argument1 points to a USB_TOPOLOGY_ADDRESS structure containing the device topology information.
Output buffer length
The size of a USB_TOPOLOGY_ADDRESS structure.
Status block
The hub or port driver sets Irp->IoStatus.Status to STATUS_SUCCESS or the appropriate error status.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista and later operating systems. |
| Header | usbioctl.h (include Usbioctl.h) |
See also
USB_TOPOLOGY_ADDRESS