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From: Andreas Dilger <adilger@turbolinux.com>
Message-Id: <200010272037.e9RKbPj05203@webber.adilger.net>
Subject: Re: Question: multiple major numbers - one driver
In-Reply-To: <Pine.LNX.4.05.10010271201430.18801-100000@gemini.procom.com>
 "from chris parker at Oct 27, 2000 12:07:38 pm"
To: chris parker <chrisp@procom.com>
Date: Fri, 27 Oct 2000 14:37:24 -0600 (MDT)
CC: linux-kernel@vger.kernel.org, chris_parker@procom.com, hnguyen@procom.com
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Chris Parker writes:
> I have a need for more than 256 minor numbers.  I could add some 
> more major numbers, thus getting the number of majors * 256.
> I would like to have only device driver loaded to handle the
> multiple majors.

Look at the SCSI/IDE/COMPAQ Smart RAID/etc drivers that have multiple
major numbers registered (per Documentation/devices.txt).  Some of
the storage drivers have been allocating blocks of 8 major numbers at
a time.

Cheers, Andreas
-- 
Andreas Dilger  \ "If a man ate a pound of pasta and a pound of antipasto,
                 \  would they cancel out, leaving him still hungry?"
http://www-mddsp.enel.ucalgary.ca/People/adilger/               -- Dogbert
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