site_archiver@lists.apple.com Delivered-To: darwin-kernel@lists.apple.com S+E -- Quinn "The Eskimo!" <http://www.apple.com/developer/> Apple Developer Relations, Developer Technical Support, Core OS/Hardware _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.a... At 15:37 +0530 5/12/06, sanjay yaragatti wrote: We have registered a serial port as character device.Can see the ports in /dev directory. But when I restart my system,the ports are lost.Is it the default behaviour? Yes. On Mac OS X, /dev is managed by devfs, a completely synthetic file systems that's built at runtime, each time the system boots. In general, devices show up in /dev because I/O Kit has found them and created a driver. Eventually a "BSD client" matches on the device and it's this driver that creates the corresponding /dev entry. For serial devices, this "BSD client" is the IOSerialBSDClient object. This email sent to site_archiver@lists.apple.com