Date: Mon, 29 Jan 2001 23:09:09 -0800 From: Julian Elischer <julian@elischer.org> To: Greg Lehey <grog@lemis.com> Cc: Boris Popov <bp@butya.kz>, Poul-Henning Kamp <phk@critter.freebsd.dk>, Steve Ames <steve@virtual-voodoo.com>, John Baldwin <jhb@FreeBSD.ORG>, John Indra <john@naver.co.id>, freebsd-current@FreeBSD.ORG Subject: Re: DEVFS newbie... Message-ID: <3A766895.F8C55BCD@elischer.org> References: <20010130114848.B48269@wantadilla.lemis.com> <Pine.BSF.4.21.0101300832480.46219-100000@lion.butya.kz> <20010130132238.H48490@wantadilla.lemis.com>
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Greg Lehey wrote:
>
> On Tuesday, 30 January 2001 at 8:37:56 +0600, Boris Popov wrote:
> > On Tue, 30 Jan 2001, Greg Lehey wrote:
> >
> >>> You can create symlinks in /dev, you cannot mknod there.
> >>
> >> What is the reason for this? How does a program or script know
> >> whether the system is running DEVFS or not?
> >
> > I don't see any good reason why this can't be supported. We may
> > talk about 'broken' devices, etc., but while there any - mknod needs to be
> > supported to make transition more smooth.
>
> I'm assuming that there's a good technical reason for the lack of
> mknod. It also seems that mkdir doesn't work in devfs. Let's give
> phk time to wake up and tell us.
I have no idea why mkdir doesnt' work.. (It worked in the old devfs,
but I assume it's just that phk just hasn't had the time yet to do it.)
mknod is nonsensical in a world wher the user cannot predict the major
number, and where the dev entry is connected to the driver via a
pointer inside the kernel rather than an index.
(How do you create the pointer? (mknod tty2 c 0xc0123452d 2)?)
>
> Greg
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