IWDFInterrupt::QueueWorkItemForIsr method (wudfddi.h)
[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 QueueWorkItemForIsr method queues a work item to process interrupt-related work outside of the interrupt service routine.
Syntax
BOOLEAN QueueWorkItemForIsr();
Return value
The method returns TRUE if a work item was successfully queued. If a work item is already in the queue, the method returns FALSE.
Remarks
The driver provides a pointer to its OnInterruptWorkItem callback function when it calls IWDFDevice3::CreateInterrupt to create the interrupt object.
For more information about handling interrupts in UMDF drivers, see Accessing Hardware and Handling Interrupts.
Requirements
| Requirement | Value |
|---|---|
| End of support | Unavailable in UMDF 2.0 and later. |
| Target Platform | Desktop |
| Minimum UMDF version | 1.11 |
| Header | wudfddi.h |
| DLL | WUDFx.dll |