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VideoPortPutDmaAdapter function

The VideoPortPutDmaAdapter function frees a VP_DMA_ADAPTER structure that was previously allocated by a call to VideoPortGetDmaAdapter.

Syntax


VOID VideoPortPutDmaAdapter(
  _In_  PVOID HwDeviceExtension,
  _In_  PVP_DMA_ADAPTER VpDmaAdapter
);

Parameters

HwDeviceExtension [in]

Pointer to the miniport driver's device extension.

VpDmaAdapter [in]

Pointer to the VP_DMA_ADAPTER structure that represents the bus-master adapter.

Return value

None

Remarks

A miniport driver should call this function only if it will not use the same VP_DMA_ADAPTER structure again.

Requirements

Version

Available in Windows XP and later versions of the Windows operating systems.

Header

Video.h (include Video.h)

Library

Videoprt.lib

DLL

Videoprt.sys

IRQL

PASSIVE_LEVEL

See also

VideoPortGetDmaAdapter
VP_DMA_ADAPTER

 

 

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