PsychKernelDriver

I'm using Mac OS Sierra and PTB 3.0.14.  How can I tell if the PsychtoolboxKernelDriver is actually working?  I can see the .kext file in System/Library/Extensions, suggesting that the sudo commands worked.  But, when I open the Activity Monitor to check if it's running, what should I look for?  I see a process called 'pkd' -- is that it?


Thanks and sorry for not using Linux.  :)