IWDFDeviceInitialize2 interface

[Warning: UMDF 2 is the latest version of UMDF and supersedes UMDF 1. All new UMDF drivers should be written using UMDF 2. No new features are being added to UMDF 1 and there is limited support for UMDF 1 on newer versions of Windows 10. Universal Windows drivers must use UMDF 2. For more info, see Getting Started with UMDF.]

The IWDFDeviceInitialize2 interface is a helper interface that allows a driver to specify a preferred buffer retrieval mode and buffer access method.


The IWDFDeviceInitialize2 interface has these methods.

Method Description
IWDFDeviceInitialize2::SetIoTypePreference The SetIoTypePreference method specifies your preferences for how UMDF and the driver access the data buffers of a device's I/O requests.


Drivers obtain the IWDFDeviceInitialize2 interface by calling IWDFDeviceInitialize::QueryInterface.


End of support Unavailable in UMDF 2.0 and later.
Target Platform Desktop
Minimum UMDF version 1.9
Header wudfddi.h (include Wudfddi.h)