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Message-ID: <58cb370e0602010749r7ab0273x8fad3d5a76d67b76@mail.gmail.com>
Date: Wed, 1 Feb 2006 16:49:48 +0100
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
To: Jan Engelhardt <jengelh@linux01.gwdg.de>
Subject: Re: CD writing in future Linux (stirring up a hornets' nest)
Cc: Joerg Schilling <schilling@fokus.fraunhofer.de>, mrmacman_g4@mac.com,
       matthias.andree@gmx.de, linux-kernel@vger.kernel.org,
       James@superbug.co.uk, j@bitron.ch, acahalan@gmail.com
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On 2/1/06, Jan Engelhardt <jengelh@linux01.gwdg.de> wrote:
> >>
> >> This is called integration and it is done by Linux e.g. for 1394 and USB SCSI
> >> devices. So why not for ATAPI?
> >
> >Because we have native drivers which do not require SCSI stack et all.
> >
> >* if [ED: it] is very useful if cd-writing can be done with ide-cd and without
> >  SCSI stack (a hack but very useful one)
> >* you don't need SCSI stack (a lot of code saved!)
>
>
> Which unfortunately leads us back to one of the early questions.
>
> If ATAPI is some sort of SCSI [command set] over ATA, and ide-cd can be used
> without the "Big Bad" SCSI layer (CONFIG_SCSI), don't we have redundant code
> floating around?

No, because this code belongs to the block layer (scsi_ioctl.c)
and is shared between SCSI and IDE drivers.

BTW This was already at least once explained in this thread.

Bartlomiej
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