On Fri, Jul 20, 2007 at 09:54:01AM +0200, Cornelia Huck wrote: > On Fri, 20 Jul 2007 00:00:01 -0700, > Greg KH <[EMAIL PROTECTED]> wrote: > > > > I don't insist on it, mknod insists on it. You cannot mknod a dev node > > > without specifying block or char. > > > > > > You're saying that sysfs should provide major and minor numbers without > > > anywhere specifying "char" or "block", meaning the major and minor > > > numbers > > > cannot be _used_. I am insisting on getting the third piece of > > > information > > > without which "major" and "minor" are useless. > > > > > > I asked very specifically about this at OLS, several times. What you're > > > telling me now seems to contradict what you told me then. > > > > Here's the rule: > > If the SUBSYSTEM is "block", it's a block device. Otherwise > > it's a char device. > > That's actually quite confusing to the casual reader, since: > > > But also realize that the majority of events you will get have nothing > > to do with device nodes. I think you are forgetting this fact. > > So the rule should be: > If the SUBSYSTEM is "block" (implying major/minor are provided), > it's a block device. > If the SUBSYSTEM is not "block", and major/minor are provided, > it's a char device. > If major/minor are not provided, the event/device is not > relevant to device node creation.
Yes, that is much more descriptive, thanks. greg k-h - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
