READ_PORT_USHORT routine

The READ_PORT_USHORT routine reads a USHORT value from the specified port address.

Syntax


USHORT READ_PORT_USHORT(
  _In_ PUSHORT Port
);

Parameters

Port [in]

Specifies the port address, which must be a mapped range in I/O space.

Return value

READ_PORT_USHORT returns the USHORT value that is read from the specified port address.

Remarks

Callers of READ_PORT_USHORT can be running at any IRQL, assuming the Port is resident, mapped device memory.

Requirements

Target platform

Universal

Version

Available starting with Windows 2000.

Header

Wdm.h (include Wdm.h, Ntddk.h, or Ntifs.h)

Library

Hal.lib

IRQL

Any level (see Remarks section)

 

 

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