nf-ks-ksdispatchfastiodevicecontrolfailure.md

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NF:ks.KsDispatchFastIoDeviceControlFailure	KsDispatchFastIoDeviceControlFailure function (ks.h)	The KsDispatchFastIoDeviceControlFailure function is used in a KSDISPATCH_TABLE.FastDeviceIoControl entry that are not handled. The function should always return FALSE.	stream\ksdispatchfastiodevicecontrolfailure.htm	stream	04/23/2018	KsDispatchFastIoDeviceControlFailure function	KsDispatchFastIoDeviceControlFailure, KsDispatchFastIoDeviceControlFailure function [Streaming Media Devices], ks/KsDispatchFastIoDeviceControlFailure, ksfunc_f8510e75-1698-4ce9-acd8-d5db73a7c035.xml, stream.ksdispatchfastiodevicecontrolfailure	ks.h	Ks.h	Universal												Ks.lib			Windows		KsDispatchFastIoDeviceControlFailure ks/KsDispatchFastIoDeviceControlFailure	APIRef kbSyntax	LibDef	Ks.lib Ks.dll	KsDispatchFastIoDeviceControlFailure

KsDispatchFastIoDeviceControlFailure function

-description

The KsDispatchFastIoDeviceControlFailure function is used in a KSDISPATCH_TABLE.FastDeviceIoControl entry that are not handled. The function should always return FALSE.

-parameters

-param FileObject [in]

Not used.

-param Wait [in]

Not used.

-param InputBuffer [in, optional]

Not used.

-param InputBufferLength [in]

Not used.

-param OutputBuffer [out, optional]

Not used.

-param OutputBufferLength [in]

Not used.

-param IoControlCode [in]

Not used.

-param IoStatus [out]

Not used.

-param DeviceObject [in]

Not used.

-returns

The KsDispatchFastIoDeviceControlFailure function returns FALSE.

-remarks

The KsDispatchFastIoDeviceControlFailure function is needed since the dispatch table for a particular opened instance of a device may not handle a specific major function that another opened instance needs to handle. Therefore, the function pointer in the driver object must always point to a function, such as the KsDispatchFastIoDeviceControlFailure function, that calls a dispatch table entry.