Calling WinUSB from UMDF

[This topic applies to UMDF 1.x.]

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.



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