Troubleshooting: List installed 3rd-party kernel extensions
For the geeks among you, it’s quite easy though. To list all 3rd party extensions, simply launch the Terminal app located in your Utilities folder and type the following:
kextstat | grep -v com.apple
You can also list all the Apple-installed kernel extensions by typing:
kextstat
I came across this little hint over at OSXDaily, a site I visit quite often because of the variety of topics covered.