Date: Thu, 15 Jul 2004 20:33:17 +1000 (EST) From: Bruce Evans <bde@zeta.org.au> To: Poul-Henning Kamp <phk@phk.freebsd.dk> Cc: Marcel Moolenaar <marcel@xcllnt.net> Subject: Re: [TEST/REVIEW/HEADSUP] tty drivers mega-patch Message-ID: <20040715200906.X3138@epsplex.bde.org> In-Reply-To: <10970.1089877690@critter.freebsd.dk> References: <10970.1089877690@critter.freebsd.dk>
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On Thu, 15 Jul 2004, Poul-Henning Kamp wrote: > In message <20040715171007.X2308@epsplex.bde.org>, Bruce Evans writes: > >'i' and 'l' were intentionally not placed at the end, to keep unit > >numbers at the end and to keep the initial and lock state devices out > >of the normal device namespace (so ttyd* matches only the data devices). > > This makes less sense because it prevent us from using 'i' and 'l' > as tty driver identifiers. Indeed. The namespace seemed to be much larger when I added them these. I once planned to rename the world to ttyd* and cuaa*, but experience showed that putting an indication of the driver name in the device name is better. > >> > I would prefer to stick to the "tty" and "cua" prefixes however. > > > >Actually, cu* makes considerably more sense and is less of an > >anachronism than tty (teletypewriter, remember them? (*)). > > I think we should be consistent here, I don't like serial > ports to have names like "ucom" and "uart", "dcons" etc. Also, (controlling) tty device names must be of the form "tty<letter><number | letter>" or "console", for ps to understand and display properly. Even existing names like /dev/ttyc00 can't be displayed properly in the 2 columns available in ps output. Bruce
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