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To: Roman Kurakin <rik@cronyx.ru>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Mon, 20 Sep 2004 17:47:18 +0400."
             <414EDF66.8030907@cronyx.ru> 
Date: Mon, 20 Sep 2004 15:51:52 +0200
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Sender: phk@critter.freebsd.dk
cc: arch@freebsd.org
Subject: Re: [HEADSUP] naming of tty devices. 
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In message <414EDF66.8030907@cronyx.ru>, Roman Kurakin writes:

>>>   Why not to add some general device enumeration for all devices, 
>>>especially
>>>if devices would behave the same?
>>>
>>>tty%{global_port}
>>>cua%{global_port}
>>
>>This doesn't work.
>>
>>There _are_ differences between serial devices and for instance
>>PTYs or NMDM devices have very particular semantics.
>>
>but all tty devices have some generic abilities and behaviour, right?
>(Sorry, I am a bit sio-centric, I didn't ever look inside ptys.)

Yes, and those generic abilities is why I want systematic naming.

But a global numbering gives you no way to know that tty234 is a PTY
and tty235 is a USB device.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.