_WDF_INTERRUPT_POLARITY Enumeration

[Applies to KMDF and UMDF]

The WDF_INTERRUPT_POLARITY enumeration type is used to specify an interrupt signal's polarity.

Syntax

typedef enum _WDF_INTERRUPT_POLARITY { 
  WdfInterruptPolarityUnknown  = 0,
  WdfInterruptActiveHigh       = 1,
  WdfInterruptActiveLow        = 2
} WDF_INTERRUPT_POLARITY, *PWDF_INTERRUPT_POLARITY;

Constants

WdfInterruptActiveHigh The interrupt signal is active when it is high.
WdfInterruptActiveLow The interrupt signal is active when it is low.
WdfInterruptPolarityUnknown The interrupt signal's polarity is unknown.

Remarks

The WDF_INTERRUPT_POLARITY enumeration type is used to specify a member of the WDF_INTERRUPT_INFO structure.

Requirements

   
Minimum KMDF version 1.0
Minimum UMDF version 2.0
Header wdfinterrupt.h (include Wdf.h)

See Also

WDF_INTERRUPT_INFO

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