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KeLowerIrql routine

The KeLowerIrql routine restores the IRQL on the current processor to its original value.

Syntax


 VOID KeLowerIrql(
  _In_  KIRQL NewIrql
);

Parameters

NewIrql [in]

Specifies the IRQL that was returned from KeRaiseIrql.

Return value

None

Remarks

It is a fatal error to call KeLowerIrql using an input NewIrql that was not returned by the immediately preceding call to KeRaiseIrql.

Requirements

Version

Available starting with Windows 2000.

Header

Wdm.h (include Wdm.h, Ntddk.h, or Ntifs.h)

Library

Hal.lib

IRQL

Any level

DDI compliance rules

IrqlKeRaiseLower, IrqlKeRaiseLower2, HwStorPortProhibitedDDIs

See also

KeGetCurrentIrql
KeRaiseIrql

 

 

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