driver.h

来自「并口回送驱动程序」· C头文件 代码 · 共 27 行

// Driver.h - Chapter 6
//
// Copyright (C) 2000 by Jerry Lozano
//

#pragma once

extern "C" {
#include <NTDDK.h>
}
#include "Unicode.h"

typedef struct _DEVICE_EXTENSION {
	PDEVICE_OBJECT pDevice;
	ULONG DeviceNumber;
	CUString ustrDeviceName;	// internal name
	CUString ustrSymLinkName;	// external name
	// Reserve space for pointer to loopback buffer
	PULONG deviceBuffer;
	ULONG deviceBufferSize;
	ULONG xferCount;			// current transfer count
	ULONG maxXferCount;			// requested xfer count
    ULONG FirstChannel;       // 首通道
    ULONG LastChannel;        // 末通道
	ULONG SampleDataRate;     // 采样率 
} DEVICE_EXTENSION, *PDEVICE_EXTENSION;