On Jan 21, 2004, at 3:37 PM, Nathan T. Hjelm wrote: about IOService, however. You can't just open a new IOKit service connection in the child? This is sometimes impossible because the parent was privileged and the child not (so I feel your pain). I have tried to open a new connection to iokit with the child process by calling IOCreateMasterPort again but I get the same result as when I didn't. What do you mean by this? In your forked child, you have to obtain the new master port, then re-lookup the device(s) you're interested in. You can't just get "a new master port". As a general rule, you shouldn't expect to be able to do anything much useful after forking unlesss you're sticking to the basic BSD/POSIX APIs; as Jim's pointed out, most of the other frameworks depend on at-exec initialisation that can't be successfully reproduced later. If you know you haven't changed working directory, re-execing argv[0] with a 'magic' argument is simple enough. = Mike _______________________________________________ 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.