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Handling Interrupts

Last Updated: 1/24/2017

[This topic applies to UMDF 1.x.]

Starting in UMDF version 1.11, UMDF drivers can handle hardware interrupts. UMDF supports both line-based (both level-triggered and edge-triggered) and message-signaled (MSI) interrupts.

Line-based, level-triggered interrupts are available starting in Windows 8. MSI and line-based, edge-triggered interrupts are available on all operating systems that UMDF 1.11 supports.

Framework-based drivers manage hardware interrupts by using framework interrupt objects.

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