看了近半個月的書，有了一小點的進步。主要是熟悉了一下驅動開發的環境和配置，USB的協議傳輸等等。下面是這段時間的體會。以開發一個簡單的"hello world"為例。

1、先裝VC，然后裝DDK，我裝的是2000DDK，這個順序不要弄反。

2、配置好環境（1）在setting->link->libary modules添加ntoskrnl.lib hal.lib usbd.lib wdm.lib ?？赡懿恍枰@么多。（2）在setting->C/C++->category選preprocessor->additional include directories中添加c:/NTDDK/inc,c:/NTDDK/inc/ddk（３）在option中添加合適的lib,include路徑.option->directories選include files添加C:/NTDDK/INC和C:/NTDDK/INC/DDK，在選library files中添加C:/NTDDK/libchk/i386和C:/NTDDK/libfre/i386。整個環境基本上就搭建好了。

3、然后添加代碼。

//1.c

#ifdef _cplusplus
extern "C"
{
#endif
#include "1.h"
#ifdef _cplusplus
}
#endif

NTSTATUS DriverEntry(IN PDRIVER_OBJECT DriverObject,
????? IN PUNICODE_STRING RegistryPath)
{
?DriverObject->DriverExtension->AddDevice = WDMAddDevice;
?DriverObject->MajorFunction[IRP_MJ_PNP] = WDMPnp;
?return STATUS_SUCCESS;
?
}

NTSTATUS WDMAddDevice(IN PDRIVER_OBJECT DriverObject,
?????? IN PDEVICE_OBJECT PhysicalDeviceObject)
{
?NTSTATUS status;
?PDEVICE_OBJECT fdo;
?PDEVICE_EXTENSION dx;
?status = IoCreateDevice(
??DriverObject,
??sizeof(DEVICE_EXTENSION),
??NULL,
??FILE_DEVICE_UNKNOWN,
??0,
??FALSE,
??&fdo);
?if(!NT_SUCCESS(status))
??return status;
?dx = (PDEVICE_EXTENSION)fdo->DeviceExtension;
?dx->fdo=fdo;
?dx->NextStackDevice = IoAttachDeviceToDeviceStack(fdo,PhysicalDeviceObject);
?fdo->Flags |= DO_BUFFERED_IO|DO_POWER_PAGABLE;
?fdo->Flags &= ~DO_DEVICE_INITIALIZING;
?return STATUS_SUCCESS;
}

NTSTATUS WDMPnp( IN PDEVICE_OBJECT fdo,
????IN PIRP Irp)
{
?PDEVICE_EXTENSION dx = (PDEVICE_EXTENSION)fdo->DeviceExtension;
?PIO_STACK_LOCATION IrpStack = IoGetCurrentIrpStackLocation(Irp);
?NTSTATUS status;

?ULONG MinorFunction = IrpStack->MinorFunction;
?IoSkipCurrentIrpStackLocation(Irp);
?status = IoCallDriver(dx->NextStackDevice,Irp);
?if( MinorFunction==IRP_MN_REMOVE_DEVICE)
?{
??IoSetDeviceInterfaceState(&dx->ifSymLinkName,FALSE);
??RtlFreeUnicodeString(&dx->ifSymLinkName);
??if(dx->NextStackDevice)
???IoDetachDevice(dx->NextStackDevice);
??IoDeleteDevice(fdo);
?}
?return status;
}

1.h

#ifdef _cplusplus
extern "C"
{
#endif
#include "ntddk.h"
#ifdef _cplusplus
}
#endif

typedef struct _DEVICE_EXTENSION
{
??? PDEVICE_OBJECT??? fdo;
??? PDEVICE_OBJECT??? NextStackDevice;
??? UNICODE_STRING??? ifSymLinkName;

} DEVICE_EXTENSION, *PDEVICE_EXTENSION;

NTSTATUS WDMAddDevice(IN PDRIVER_OBJECT DriverObject,
?????? IN PDEVICE_OBJECT PhysicalDeviceObject);

NTSTATUS WDMPnp( IN PDEVICE_OBJECT fdo,
????IN PIRP Irp);

4、在文件中添加makefile和source,makefile從其它驅動程序中就可以原封不動的考過來，source需要改一點，我的source是：

TARGETNAME=1
TARGETTYPE=DRIVER
DRIVERTYPE=WDM
TARGETPATH=OBJ

INCLUDES=$(BASEDIR)/inc;/
???????? $(BASEDIR)/inc/ddk;/

TARGETLIBS=$(DDKROOT)/libfre/i386/ntoskrnl.lib/
?????????? $(DDKROOT)/libfre/i386/hal.lib/
?????????? $(DDKROOT)/libfre/i386/wdm.lib
?????????
SOURCES=1.c/

makefile為（不用改地）：

#
# DO NOT EDIT THIS FILE!!!? Edit ./sources. if you want to add a new source
# file to this component.? This file merely indirects to the real make file
# that is shared by all the driver components of the Windows NT DDK
#

!INCLUDE $(NTMAKEENV)/makefile.def

5、編譯，用DDK中的checked(free) build environment來編譯。進入控制臺后執行build -cz，其中如果編譯不通可以用nmake來調試。

6、build完成后，就會生成一個1.sys文件。

7、給設備寫inf文件，即安裝驅動，inf文件可以從其它驅動文件中拷貝過來，做點小改動就可以了。下面是我寫的，

[Version]
Signature="$Chicago$"
Class=Unknown
Provider=%THU%

[Manufacturer]
%THU% = WdmDriver

[WdmDriver]
%WdmDriver%=WdmDriver.Install, *WdmDriver

[DestinationDirs]
WdmDriver.Files.Driver=10, System32/Drivers
WdmDriver.Files.Driver.NT=10, System32/Drivers

[SourceDisksNames]
1="WdmDriver directory",,,obj/i386/

[SourceDisksFiles]
1.sys=1
;; The Win2K DDK documentation contains an excellent INF reference.

;--------- Version Section ---------------------------------------------------

[Version]
Signature="$CHICAGO$"
Provider=LC_Device
DriverVer=8/21/2002,3.0.0.3

; If device fits one of the standard classes, use the name and GUID here,
; otherwise create your own device class and GUID as this example shows.

Class=Unknown
ClassGUID={ff646f80-8def-11d2-9449-00105a075f6b}

;--------- SourceDiskNames and SourceDiskFiles Section -----------------------

; These sections identify source disks and files for installation. They are
; shown here as an example, but commented out.

[SourceDisksNames]
1 = "1",Disk1,,

[SourceDisksFiles]
1.sys = 1,objfre/i386,

;--------- ClassInstall/ClassInstall32 Section -------------------------------

; Not necessary if using a standard class

; 9X Style
[ClassInstall]
Addreg=Class_AddReg

; NT Style
[ClassInstall32]
Addreg=Class_AddReg

[Class_AddReg]
HKR,,,,%DeviceClassName%
HKR,,Icon,,"-5"

;--------- DestinationDirs Section -------------------------------------------

[DestinationDirs]
YouMark_Files_Driver = 10,System32/Drivers

;--------- Manufacturer and Models Sections ----------------------------------

[Manufacturer]
%MfgName%=Mfg0

[Mfg0]

; PCI hardware Ids use the form
; PCI/VEN_aaaa&DEV_bbbb&SUBSYS_cccccccc&REV_dd
;改成你自己的ID
%DeviceDesc%=YouMark_DDI, PCI/VEN_9999&DEV_9999

;---------- DDInstall Sections -----------------------------------------------
; --------- Windows 9X -----------------

; Experimentation has shown that DDInstall root names greater than 19 characters
; cause problems in Windows 98

[YouMark_DDI]
CopyFiles=YouMark_Files_Driver
AddReg=YouMark_9X_AddReg

[YouMark_9X_AddReg]
HKR,,DevLoader,,*ntkern
HKR,,NTMPDriver,,HelloWDM.sys
HKR, "Parameters", "BreakOnEntry", 0x00010001, 0

; --------- Windows NT -----------------

[YouMark_DDI.NT]
CopyFiles=YouMark_Files_Driver
AddReg=YouMark_NT_AddReg

[YouMark_DDI.NT.Services]
Addservice = HelloWDM, 0x00000002, YouMark_AddService

[YouMark_AddService]
DisplayName = %SvcDesc%
ServiceType = 1 ; SERVICE_KERNEL_DRIVER
StartType = 3 ; SERVICE_DEMAND_START
ErrorControl = 1 ; SERVICE_ERROR_NORMAL
ServiceBinary = %10%/System32/Drivers/1.sys

[YouMark_NT_AddReg]
HKLM, "System/CurrentControlSet/Services/HelloWDM/Parameters",/
"BreakOnEntry", 0x00010001, 0

; --------- Files (common) -------------

[YouMark_Files_Driver]
1.sys

;--------- Strings Section ---------------------------------------------------

[Strings]
ProviderName="Flying L Co.,Ltd."
MfgName="LC Soft"
DeviceDesc="Hello World WDM!"
DeviceClassName="LC_Device"
SvcDesc="???"
對inf文件的一點小注釋，：），inf文件是按照部分來劃分的，每個部分用[]來標記。分號；表示注釋，%表示（%文本%）表示一個字符串。

一個最基本的起步，未來還有很多工作要做，繼續努力！