Re: Ports lost after reboot..
Re: Ports lost after reboot..
- Subject: Re: Ports lost after reboot..
- From: Quinn <email@hidden>
- Date: Tue, 5 Dec 2006 10:27:57 +0000
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.
S+E
--
Quinn "The Eskimo!" <http://www.apple.com/developer/>
Apple Developer Relations, Developer Technical Support, Core OS/Hardware
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