One of the possible solutions to a problem that I'm working on is to have two Drivers loading in one DriverKit dext, an IOUserHIDEventService and an IOUserHIDDevice. For this to work, however, I need to have the event service send a message to the Device. IOKit has the service and connection objects that I can use just like an app would (just like the app the driver communication example). But DriverKit complains whenever I try to add the IOKit framework, saying that it is not supported. Is there another way that I can send a message directly from one driver to another?
