readwrite.cpp

一本在讲述USB驱动程式的书 及其范例原码

// Read/Write request processors for spinlock driver
// Copyright (C) 1999, 2000 by Walter Oney
// All rights reserved

#include "stddcls.h"
#include "driver.h"

///////////////////////////////////////////////////////////////////////////////

#pragma LOCKEDCODE

NTSTATUS StartDevice(PDEVICE_OBJECT fdo, PCM_PARTIAL_RESOURCE_LIST raw, PCM_PARTIAL_RESOURCE_LIST translated)
	{							// StartDevice
	PDEVICE_EXTENSION pdx = (PDEVICE_EXTENSION) fdo->DeviceExtension;

	KdPrint((DRIVERNAME " - Testing spin lock functions\n"));

	KSPIN_LOCK lock;
	KLOCK_QUEUE_HANDLE qh;

	KeInitializeSpinLock(&lock);
	AcquireSpinLock(&lock, &qh);
	ReleaseSpinLock(&qh);

	return STATUS_SUCCESS;
	}							// StartDevice

///////////////////////////////////////////////////////////////////////////////

#pragma PAGEDCODE

VOID StopDevice(IN PDEVICE_OBJECT fdo, BOOLEAN oktouch /* = FALSE */)
	{							// StopDevice
	PDEVICE_EXTENSION pdx = (PDEVICE_EXTENSION) fdo->DeviceExtension;
	}							// StopDevice