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From: james@uw-june (James Synge)
Newsgroups: net.micro.amiga
Subject: Re: Yes, we...do pipes.
Message-ID: <511@uw-june>
Date: Fri, 7-Mar-86 11:39:00 EST
Article-I.D.: uw-june.511
Posted: Fri Mar  7 11:39:00 1986
Date-Received: Sun, 9-Mar-86 09:11:18 EST
References: <158@leopard.UUCP> <45100030@infoswx>
Distribution: net
Organization: U of Washington Computer Science
Lines: 22
Summary: How does one add a new device to amigados? I want to add PIPE:

<eat me, please!>

   AmigaDos has devices SER:, PAR:, etc which can be treated very much like
parts of the filing system. At the exec level you can create new devices
using the routines AddDevice, etc.  
   I would like to know how to create a new AmigaDos device.  What I intend
to do is write a routine like the Unix routine pipe(fd[2]) which returns two
file descriptors, one can be written to, the other can be read.  Somehow
AmigaDos needs to know what to do with these fds and this is not well
documented (I could find no such info).
   Is there anybody who has the sample device driver given in the Rom
Kernel manual, Vol 2, appendix G?  It would be a great help to have those
posted to the net (or sent direct). 

   Many thanks to Matt Dillon of UCB for posting his C shell. If I am able
to create the above pipe() I will incorporate it into csh and post the
changes to the net.

- James M. Synge       University of Washington, Seattle
  UUCP: ...!uw-beaver!uw-june!james
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