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NdisRawWritePortBufferUchar

  • Artigo

This function writes a specified number of bytes from a caller-supplied buffer to a given I/O port.

VOID NdisRawWritePortBufferUchar(
IN ULONG Port, 
IN PUCHAR Buffer, 
IN ULONG Length );

Parameters

  • Port
    Specifies the I/O port. This address falls in a range that was mapped during initialization with the NdisMRegisterIoPortRange function.
  • Buffer
    Pointer to a caller-allocated resident buffer containing the bytes to be written.
  • Length
    Specifies the number of bytes to write to the I/O port.

Remarks

An NIC driver calls this function to transfer a sequence of bytes, one at a time, to its NIC.

This function runs significantly faster than the NdisImmediateWritePortBufferUchar function because it need not map a bus-relative port address onto a host-dependent logical port address at every call.

A driver that calls this function can run at any IRQL.

Requirements

Runs on Versions Defined in Include Link to
Windows CE OS 2.0 and later Ndis.h    

Note   This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.

See Also

NdisMRegisterIoPortRange, NdisRawReadPortBufferUchar, NdisRawWritePortBufferUlong, NdisRawWritePortBufferUshort, NdisRawWritePortUchar

 Last updated on Tuesday, July 13, 2004

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