At 11:13 -0700 02-6-13, andrew@downs.ws wrote: On Wed, 12 June 2002, darwin-kernel-request@lists.apple.com wrote Apple in SimpleUserClient show how to make connections from an application to a kext. But how to do the opposite: sending message from kext to an application ? How to tell the application to do something ? I could not find a way to make this type of notification work, so instead I used a sysctl with polling from the application. The kernel programming doc explains sysctl well enough to get started, though there were a couple of errors that hopefully have been corrected by now. I recommend using the UserClient for a blocking work availaible style API. In general mixing BSD and IOKit can lead to vast complications with locking. Specifically funnels vs IOWorkLoops. Godfrey _______________________________________________ darwin-kernel mailing list | darwin-kernel@lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.