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WDF_INTERRUPT_PRIORITY enumeration (wdfinterrupt.h)

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[Applies to KMDF and UMDF]

The WDF_INTERRUPT_PRIORITY enumeration type identifies relative priorities for device interrupts.

Syntax

typedef enum _WDF_INTERRUPT_PRIORITY {
  WdfIrqPriorityUndefined = 0,
  WdfIrqPriorityLow,
  WdfIrqPriorityNormal,
  WdfIrqPriorityHigh
} WDF_INTERRUPT_PRIORITY, *PWDF_INTERRUPT_PRIORITY;

Constants

 
WdfIrqPriorityUndefined
Value: 0
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 WdfInterruptSetPolicy method.

Requirements

Requirement Value
Minimum KMDF version 1.0
Minimum UMDF version 2.0
Header wdfinterrupt.h (include Wdf.h, Wudfddi.h)

See also

WdfInterruptSetPolicy