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WDF_INTERRUPT_PRIORITY enumeration (wudfinterrupt.h)

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[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 WDF_INTERRUPT_PRIORITY enumeration type identifies relative priorities for device interrupts.

Syntax

typedef enum _WDF_INTERRUPT_PRIORITY {
  WdfIrqPriorityUndefined,
  WdfIrqPriorityLow,
  WdfIrqPriorityNormal,
  WdfIrqPriorityHigh
} WDF_INTERRUPT_PRIORITY, *PWDF_INTERRUPT_PRIORITY;

Constants

 
WdfIrqPriorityUndefined
The relative priority of a device's interrupt is undefined.
WdfIrqPriorityLow
The device's interrupt has a relatively low priority, typically because the interrupt does not have to be serviced immediately.
WdfIrqPriorityNormal
The device's interrupt priority is neither relatively low nor relatively high.
WdfIrqPriorityHigh
The device's interrupt has a relatively high priority, typically because the interrupt must be serviced immediately.

Remarks

The WDF_INTERRUPT_PRIORITY enumeration type is used as input to the IWDFInterrupt::SetPolicy method.

Requirements

Requirement Value
Minimum UMDF version 1.11
Header wudfinterrupt.h

See also

IWDFInterrupt::SetPolicy