escaping-to-winusb.md

title	description	keywords	ms.date
Calling WinUSB from UMDF	Calling WinUSB from UMDF	WinUSB WDK UMDF WinUSB WDK UMDF , escaping to WinUSB user-mode drivers WDK UMDF , escaping to WinUSB	04/20/2017

Calling WinUSB from UMDF

[!includeUMDF 1 Deprecation]

A UMDF driver can call WinUSB Functions directly if the driver cannot use the USB-specific UMDF interfaces to perform a specific operation. To call WinUSB Functions, the driver must first obtain a WinUSB interface handle by calling IWDFUsbTargetDevice::GetWinUsbHandle or IWDFUsbInterface::GetWinUsbHandle. A WinUSB interface handle is used to define the first interface in the selected configuration.

For more information, see How to Access a USB Device by Using WinUSB Functions.