Handling interrupts in UMDF drivers
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.
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.