1. The OS-X kernel is based on NetBSD.

2. Is this for an Intel Mac or a PowerPC Mac?

3. Could you explain what "the modem/printer port of the usb side in unix" means?

4. Do you have the source code for the Linux version, or just the binary driver?

5. Are you allowed to port their Intellectual Property to another OS? Will they own it if you do?

6. Have you ever done any programming? Writing a device driver is not something I'd recommend as a first project.