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Date:      Mon, 19 Nov 2007 17:09:07 +0100
From:      =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no>
To:        "Poul-Henning Kamp" <phk@phk.freebsd.dk>
Cc:        Scott Long <scottl@samsco.org>, src-committers@FreeBSD.ORG, cvs-src@FreeBSD.ORG, cvs-all@FreeBSD.ORG, Nate Lawson <nate@root.org>, =?utf-8?Q?S=C3=B8ren?= Schmidt <sos@deepcore.dk>
Subject:   Re: cvs commit: src/sys/dev/ata atapi-cd.c atapi-cd.h
Message-ID:  <86lk8umd3w.fsf@ds4.des.no>
In-Reply-To: <29732.1195235967@critter.freebsd.dk> (Poul-Henning Kamp's message of "Fri\, 16 Nov 2007 17\:59\:27 %2B0000")
References:  <29732.1195235967@critter.freebsd.dk>

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"Poul-Henning Kamp" <phk@phk.freebsd.dk> writes:
> In message <473DD94D.8050605@samsco.org>, Scott Long writes:
> > But then why not have g_access be able to communicate the ability to
> > access the device independent from the ability to access the media?
> > Seems like both of these questions are "access" questions.
> Because that is a lot more work for no benefit I can see ?

There is another closely related problem which also needs fixing and
which also requires GEOM to distinguish between device and media: GEOM's
behaviour when the media changes while the device is open (e.g. burning
a CD).  AFAIK, it is not currently possible to properly fixate a CD-R in
FreeBSD; the CDRIOCFIXATE ioctl always fails because once the media has
changed (from blank to non-blank), all access fails until you close and
reopen the device.

DES
--=20
Dag-Erling Sm=C3=B8rgrav - des@des.no



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