PaulS:
I am new to OSX
Is that why you didn't post any code? That's not a good excuse.
Don't be snide.
After some more searching I started to look into Apples serial examples for iokit and ioctl. I was not going to post this but I must have accidentally, otherwise I certainly would have included code. Unfortunately I only work on the project once per week and I do not own the Macbook I work on. Until next Friday......
You can ignore this post until I get back to work Friday, I will properly update it then.