Question

I’m writing a Mac application which needs to check whether a given driver has been installed or not.

How can I go about checking this?

BR,
S.

Answer 1

The simplest way is to grep output of kextstat for its name, knowing that grep returns nonzero exit code when nothing is found:

if (0 == system("/usr/sbin/kextstat | /usr/bin/grep -qF com.company.KextName"))
{
     // it is loaded
}

If you need to do that directly, check kextstat source code, you’ll find it’s using kmod_get_info API, however I can’t find any documentation on it right now. I see no serious disadvantages in using system() call, so I’d stick with it.