EVT_WDF_DEVICE_SELF_MANAGED_IO_FLUSH callback function (wdfdevice.h)

Article
02/22/2024

[Applies to KMDF and UMDF]

A driver's EvtDeviceSelfManagedIoFlush event callback function handles flush activity for the device's self-managed I/O operations.

Syntax

EVT_WDF_DEVICE_SELF_MANAGED_IO_FLUSH EvtWdfDeviceSelfManagedIoFlush;

void EvtWdfDeviceSelfManagedIoFlush(
  [in] WDFDEVICE Device
)
{...}

Parameters

[in] Device

A handle to a framework device object.

Return value

None

Remarks

To register an EvtDeviceSelfManagedIoFlush callback function, a driver must call WdfDeviceInitSetPnpPowerEventCallbacks.

If the driver has registered an EvtDeviceSelfManagedIoFlush callback function, the framework calls it after the device has been removed. The driver should flush (that is, remove) I/O requests that are associated with the device's self-managed I/O operations.

For more information about when the framework calls this callback function, see PnP and Power Management Scenarios.

For more information about drivers that provide this callback function, see Using Self-Managed I/O.

Requirements

Requirement	Value
Target Platform	Universal
Minimum KMDF version	1.0
Minimum UMDF version	2.0
Header	wdfdevice.h (include Wdf.h)
IRQL	PASSIVE_LEVEL