Abstract: Device drivers is an important factor affecting the applicability of the operating system.Considering the large cost of completely developing a device driver,reusing existing device drivers in the operating system became the preferred method for improving the applicability of operating system.Reuse of device driver process is essentially a target environment set up process of device drivers,reusing a device driver does not need to implement all of the kernel servi-ces.Code dependency analysis could recognize the dependency between device driver and kernel service.Device driver environment can be built by code dependency analysis technology automatically.Through reusing the e1000 network adapter driver,the feasibility of this method was proved.

Key words: Linux,Device driver reuse,Code dependency analysis,Device driver environment