On Thu, Oct 06, 2011 at 03:43:08PM -0700, Yang Xiang wrote: > Hi Greg, > > Let me rephrase my question then. > > If I am in kernel space and in another device driver and I need to write a log > entry of some sort to another block device, do I just perform an "open" and > "write" as if I am in user space?
No, you never do that, no device driver ever opens a file and writes to it. It's that simple. Please see the kernelnewbies.org site for more details about why this is so. greg k-h _______________________________________________ Kernelnewbies mailing list [email protected] http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
