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VideoPortWritePortUshort function

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

Syntax


VOID VideoPortWritePortUshort(
   PUSHORT Port,
   USHORT  Value
);

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.

Requirements

Target platform

Desktop

Version

Available in Windows 2000 and later versions of the Windows operating systems.

Header

Video.h (include Video.h)

Library

Videoprt.lib

DLL

Videoprt.sys

IRQL

Any level (see Remarks section)

See also

VideoPortGetDeviceBase

 

 

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