Avoiding Kernel Event Conflicts

Q:  I'm writing a Mac OS X kernel extension and I want to use kernel events (as defined in <sys/kern_event.h>) to talk to a daemon process. I'm worried that my use of kernel events might conflict with other kernel extensions. What should I set the vendor_code field of the kern_event_msg structure to?

A: This field should either be set to KEV_VENDOR_APPLE (1) for Apple-defined events, or a registered creator code for third party events. If your product already has a registered creator code, you can use that. Otherwise you should register one using the Creator Code Registration page on the Apple developer web site.

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