I/O Queue Event Callback Functions
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.
The archived UMDF 1 samples can be found in the Windows 11, version 22H2 - May 2022 Driver Samples Update.
For more info, see Getting Started with UMDF.
When drivers create I/O queues, or configure default I/O queues, they can register the following interfaces so that the framework notifies the driver--by calling the methods associated with the interfaces--when events related to the interfaces occur. For more information about I/O queues and creating and configuring I/O queues, see Framework I/O Queue Object.
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