[vortex] Duplicate major numbers and resolving device file names
Donald Becker
becker@scyld.com
Tue Oct 22 06:11:01 2002
On Mon, 21 Oct 2002, Manish Madan wrote:
> I am new to kernel programming. I had a couple of questions. When I
> try to add device special files to /dev using mknod, it allows me to
> add files with the same major number and even the same major and minor
> numbers.
This question is very off-topic for this list.
> How is this possible ? Won't having two drivers for the same
> device (same major-minor pair for a character device, say) cause a
> conflict ?
You don't have two drivers for one device. Either the driver supports
multiple clients, or it is response for providing exclusive access to
the first open().
--
Donald Becker becker@scyld.com
Scyld Computing Corporation http://www.scyld.com
410 Severn Ave. Suite 210 Scyld Beowulf cluster system
Annapolis MD 21403 410-990-9993