IoReportInterruptActive - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers
// wdm.h

VOID IoReportInterruptActive(
  [in] PIO_REPORT_INTERRUPT_ACTIVE_STATE_PARAMETERS Parameters
);
View the official Windows Driver Kit DDI reference

NtDoc

No description available.

Windows Driver Kit DDI reference (nf-wdm-ioreportinterruptactive)

IoReportInterruptActive function

Description

The IoReportInterruptActive routine informs the operating system that a registered interrupt service routine (ISR) is active and ready to handle interrupt requests.

Parameters

Parameters [in]

A pointer to an IO_REPORT_INTERRUPT_ACTIVE_STATE_PARAMETERS structure that contains the connection context associated with the interrupt. The caller received this context from the IoConnectInterruptEx call that registered the ISR.

Remarks

The IoConnectInterruptEx routine registers an ISR and connects the ISR to an interrupt or interrupts. After the ISR is registered, the driver can make the ISR active or inactive by calling the IoReportInterruptActive or IoReportInterruptInactive routine. By default, the ISR is active after the IoConnectInterruptEx call.

An ISR that is in the active state can be disconnected or made inactive. To disconnect the ISR and delete its registration, call the IoDisconnectInterruptEx routine. To make the ISR inactive without changing its registration, call IoReportInterruptInactive.

The IO_REPORT_INTERRUPT_ACTIVE_STATE_PARAMETERS structure must contain a valid connection contact obtained from an IoConnectInterruptEx call.

For more information about IoReportInterruptActive, see Making an ISR Active or Inactive.

See also

IO_REPORT_INTERRUPT_ACTIVE_STATE_PARAMETERS

IoConnectInterruptEx

IoDisconnectInterruptEx

IoReportInterruptInactive