Thanks for the link. I went with a kernel driver because I knew that approach would work on old OSX (starting with 10.5), but since i'm delivering two kexts any

Thanks for the link. I went with a kernel driver because I knew that approach would work on old OSX (starting with 10.5), but since i'm delivering two kexts anyway, switching to an user-space driver for 10.9+ would probably reduce CPU usage :)