File list (Check if you may need any files):
CharSample
..........\CharSample.dsw
..........\CharSample.ncb
..........\CharSample.opt
..........\CharSampleDeviceInterface.h
..........\CharSampleioctl.h
..........\dirs
..........\exe
..........\...\makefile
..........\...\OpenByIntf.cpp
..........\...\sources
..........\...\Test_CharSample.cpp
..........\...\Test_CharSample.dsp
..........\...\Test_CharSample.plg
..........\readme.txt
..........\sys
..........\...\CharSample.cpp
..........\...\CharSample.dsp
..........\...\CharSample.h
..........\...\CharSample.inf
..........\...\CharSample.plg
..........\...\CharSample.rc
..........\...\CharSampleDevice.cpp
..........\...\CharSampleDevice.h
..........\...\function.h
..........\...\makefile
..........\...\sources
CharSample_DDK
..............\app
..............\...\CharSampleApp.aps
..............\...\CharSampleApp.cpp
..............\...\CharSampleApp.dsp
..............\...\CharSampleApp.h
..............\...\CharSampleApp.plg
..............\...\CharSampleApp.rc
..............\...\CharSampleIorw.cpp
..............\...\Makefile
..............\...\resource.h
..............\...\resrc1.h
..............\...\sources
..............\CharSample.dsw
..............\CharSample.ncb
..............\CharSample.opt
..............\CharSampleDeviceInterface.h
..............\CharSampleioctl.h
..............\CharSampleVars.xml
..............\dirs
..............\driver
..............\......\CharSample.c
..............\......\CharSample.cat
..............\......\CharSample.ctl
..............\......\CharSample.dsp
..............\......\CharSample.h
..............\......\CharSample.inf
..............\......\CharSample.plg
..............\......\CharSample.rc
..............\......\debug.c
..............\......\iorw.c
..............\......\Makefile
..............\......\pch.h
..............\......\pnp.c
..............\......\power.c
..............\......\queue.c
..............\......\registry.c
..............\......\sources
..............\......\wmi.c
..............\exe
..............\...\makefile
..............\...\OpenByIntf.cpp
..............\...\sources
..............\...\Test_CharSample.cpp
..............\...\Test_CharSample.dsp
..............\...\Test_CharSample.plg
..............\intrface.h
..............\ReadMe.htm