Start
Starts the current event service and associates it with the specified provider object.
Declaration
virtual kern_return_t Start(IOService *provider);Parameters
- provider:
The provider object that matches the current service. Cast this object to the class you expect. The system retains this object for the duration of your
Startmethod. The system continues to retain the object if your service starts successfully, releasing it only after calling your service’s Stop method.
Return Value
kIOReturnSuccess on success, or another value if an error occurs. See Error Codes.
Discussion
After successfully matching the specified provider to your event service, the system instantiates your service object and calls this method. Use this method to configure your custom data structures and associated hardware. You might also store a reference to the provider object for later use. After you configure your event service, call the RegisterService method to let the system know that your service is running. If you encounter an error, return an appropriate error code without calling RegisterService.
Always call super early in your implementation of this method.