// video.h

VIDEOPORT_DEPRECATED VIDEOPORT_API VOID VideoPortWritePortUshort(
  PUSHORT Port,
  USHORT  Value
);
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Windows Driver Kit DDI reference (nf-video-videoportwriteportushort)

VideoPortWritePortUshort function

Description

The VideoPortWritePortUshort function writes a USHORT value to a mapped I/O port.

Parameters

`Port`

Pointer to the port. The given Port must be in a mapped I/O-space range returned by VideoPortGetDeviceBase.

`Value`

Specifies a USHORT value to be transferred to the adapter.

Return value

None

Remarks

A miniport driver's HwVidInterrupt or HwVidSynchronizeExecutionCallback function can call VideoPortWritePortUshort.

Callers of VideoPortWritePortUshort can be running at any IRQL, provided that the memory pointed to by the Port parameter is resident, mapped device memory.

VideoPortWritePortUshort - NtDoc