windows-nt/Source/XPSP1/NT/drivers/parallel/parclass/parloop.c

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2020-09-26 03:20:57 -05:00
/*++
Copyright (C) Microsoft Corporation, 1993 - 1998
Module Name:
parloop.c
Abstract:
This module contains the processor independant version of the
write loop for the parallel driver.
Author:
Anthony V. Ercolano 1-Aug-1992
Norbert P. Kusters 22-Oct-1993
Environment:
Kernel mode
Revision History :
--*/
#include "pch.h"
ULONG
SppWriteLoop(
IN PUCHAR Controller,
IN PUCHAR WriteBuffer,
IN ULONG NumBytesToWrite
)
/*++
Routine Description:
This routine outputs the given write buffer to the parallel port
using the standard centronics protocol.
Arguments:
Controller - Supplies the base address of the parallel port.
WriteBuffer - Supplies the buffer to write to the port.
NumBytesToWrite - Supplies the number of bytes to write out to the port.
Return Value:
The number of bytes successfully written out to the parallel port.
Notes:
This routine runs at DISPATCH_LEVEL.
--*/
{
return(SppWriteLoopPI(Controller, WriteBuffer, NumBytesToWrite, 1));
}