2.6 Kernel Deleted the DEVFS and I've to use the newly designed udev
Udev is said to be better than DEVFS. And I 've to choice, the 2.6 kernel source tree has deleted the devfs.
What below is some useful articles about what udev is and how to use it.(I'm trying to use udev now in my arm11 board,whose name is called mdiracIII+
The useful articles: http://www.us.kernel.org/pub/linux/utils/kernel/hotplug/udev.html
The source code of udev : http://www.us.kernel.org/pub/linux/utils/kernel/hotplug/
How to use udev: http://www.reactivated.net/writing_udev_rules.html
Hope you can learn from them