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From: Peter da Silva <peter@bonkers.taronga.com>
Message-Id: <199504201130.GAA17787@bonkers.taronga.com>
Subject: Re: [DEVFS] your opinions sought!
To: bde@zeta.org.au (Bruce Evans)
Date: Thu, 20 Apr 1995 06:30:15 -0500 (CDT)
Cc: bde@zeta.org.au, hackers@FreeBSD.org, julian@ref.tfs.com,
        rgrimes@gndrsh.aac.dev.com
In-Reply-To: <199504200302.NAA31880@godzilla.zeta.org.au> from "Bruce Evans" at Apr 20, 95 01:02:14 pm
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> >> /dev/driver_name/all_devices_handled_by_this_drive_in_one_directory  is
> >> easiest for drivers, but not quite what is wanted by programs.

> >Why not?

> To handle /dev/sio/*, /dev/cx/*, /dev/ity/* and /dev/cy/*, ps would have
> to know that the set of tty drivers is precisely { sio, cx, ity, cy }.

Ah, that's the two-views thing again. *Some* programs (PS, DF) need to know
what all the devices of a given type are. Other times you want to know what
all the devices of a given driver are, or you want something more specific
like having /dev/uha/c0t1l0n because /dev/tape/0n might be your QIC if you
didn't have the external DAT powered up at boot.