Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!apple!olivea!samsung!munnari.oz.au!mtiame!ubeaut!mwp
From: mwp@ubeaut.oz.au (Michael Paddon)
Newsgroups: comp.unix.internals
Subject: Re: Multiplexed Special Devices
Message-ID: <263@ubeaut.oz.au>
Date: 19 Oct 90 02:08:56 GMT
References: <6633@ncrcae.Columbia.NCR.COM>
Organization: Digital Equipment Corp., Melbourne, Australia
Lines: 19

From article <6633@ncrcae.Columbia.NCR.COM>, by porr@ncrcae.Columbia.NCR.COM (Greg Porr):
> 
> Does anyone know the origin of the "Multiplexed Character Special" (IFMPC)
> and "Multiplexed Block Special" (IFMPB) device types?  These are defined
> in the inode.h header file as it comes in all Releases of System V, but
> I've never seen it used in any kernel source.

There used to be multiplexed files in 7th Edition. From memory, these were
basically named pipes with multiple 'channels'.

					Michael

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