Thanks. I also found it @ http://lwn.net/Articles/330985/ On Wed, Mar 28, 2012 at 4:53 AM, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > On Tue, Mar 27, 2012 at 02:39:37PM +0800, Li Haifeng wrote: >> As you know, the node under /dev are managed by udevd daemon. > > Not always, usually the node is created by devtmpfs on most modern > distros. > >> But to the built-in driver module, when the module is probed in kernel >> space, udevd daemon doesn't running. So, to ttyS node, when the >> built-in driver module was probed, when was the /dev/ttyS created? > > devtmpfs does it. > > Also, look at your distro startup code, it sets things up properly when > userspace starts up and has udev go through things and set up the nodes > then. > > good luck, > > greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
