Calling driver functions from kernel space

[Sam Carter]

Hi all,

I have a char driver/module which compiles and loads into the linux kernel
just fine. In this driver are some functions which I would like to access
from the kernel file 'fs/readdir.c'. Additionally, how can I test if a
driver is loaded?

I need something like the following.

if(myDriver is loaded){
    myDriver.functionCall();
}

All examples I've found on internet searches are doing it from userspace
applications.


Thanks for any help