Kernel Module Programming related problem

Hello ,
We are working on a project of real time system and we have a module in Kernel Space.

That module has some functions and we have an Application that also has some functions with same name.

This applications runs in User Space.

Now we want to map the functions of User Space to Kernel Space using ioctl(); by designing an API.

Can anybody please suggest any solution how to do this.

Thanks in advance.

Happy Coding!!!