WRITE_PORT_BUFFER_ULONG

WRITE_PORT_BUFFER_ULONG routine

The WRITE_PORT_BUFFER_ULONG routine writes a number of ULONG values from a buffer to the specified port address.

Syntax


 VOID WRITE_PORT_BUFFER_ULONG(
  _In_ PULONG Port,
  _In_ PULONG Buffer,
  _In_ ULONG  Count
);

Parameters

Port [in]

Pointer to the port, which must be a mapped memory range in I/O space.

Buffer [in]

Pointer to a buffer from which an array of ULONG values is to be written.

Count [in]

Specifies the number of ULONG values to be written to the port.

Return value

None

Remarks

The size of the buffer must be large enough to contain at least the specified number of ULONG values.

Callers of WRITE_PORT_BUFFER_ULONG can be running at any IRQL, assuming the Buffer is resident and 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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