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From: rees@pisa.ifs.umich.edu (Jim Rees)
Newsgroups: comp.sys.apollo,comp.sys.hp
Subject: Re: SIO Ports on HP400 series workstations
Keywords: SIO
Message-ID: <4f20002a.1bc5b@pisa.ifs.umich.edu>
Date: 10 Jan 91 17:28:08 GMT
References: <540@eastek.oz>
Sender: usenet@terminator.cc.umich.edu (usenet news)
Reply-To: rees@citi.umich.edu (Jim Rees)
Organization: University of Michigan IFS Project
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In article <540@eastek.oz>, snh@eastek.oz (Sebastien Hadjifotis) writes:

  Only options I have are either
  using the Serial/Parallel sold by HP (therefore I can only have 7 ports :-() or
  writing a driver for the Stallion card (over 32 ports :-)).

It's very difficult to write a tty driver for Domain/OS.  You need to use
either the unreleased tty trait, or System V streams.  Or maybe ptys and a
server process.  I don't know of anyone outside Apollo who has done this.