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From: aew...@access.hky.com (Albert E. Whale)
Subject: ATAPI CD Writeable Drivers
Date: 1999/03/21
Message-ID: <36f54626.6539407@mail.hky.com>#1/1
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OK, I'm looking for the ATAPI CDR Writable drivers.  I've searched the
HOWTO's rufus .... the only think that I can find is about the SCSI
Drivers.

Can anyone help?


Albert E. Whale       aew...@access.hky.com
http://www.hky.com/aewhale.html
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Sr. Database, Internet and Unix Systems Consultant                        
The Maxim Group - Information Systems Consultants

Pennsylvania Parenthood Initiative - 
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From: al...@lxorguk.ukuu.org.uk (Alan Cox)
Subject: Re: ATAPI CD Writeable Drivers
Date: 1999/03/21
Message-ID: <m10OXrY-0007U1C@the-village.bc.nu>#1/1
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> OK, I'm looking for the ATAPI CDR Writable drivers.  I've searched the
> HOWTO's rufus .... the only think that I can find is about the SCSI
> Drivers.
> 
> Can anyone help?

insmod ide-scsi

Alan

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From: aew...@access.hky.com (Albert E. Whale)
Subject: Re: ATAPI CD Writeable Drivers
Date: 1999/03/21
Message-ID: <36f51154.2762818@mail.hky.com>#1/1
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On Sun, 21 Mar 1999 02:21:15 +0000 (GMT), al...@lxorguk.ukuu.org.uk (Alan
Cox) wrote:

>> OK, I'm looking for the ATAPI CDR Writable drivers.  I've searched the
>> HOWTO's rufus .... the only think that I can find is about the SCSI
>> Drivers.
>> 
>> Can anyone help?
>
>insmod ide-scsi
>
>Alan
Alan,

I gave that a try but that module is not found.  Any ideas?


Albert E. Whale       aew...@access.hky.com
http://www.hky.com/aewhale.html
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Sr. Database, Internet and Unix Systems Consultant                        
The Maxim Group - Information Systems Consultants

Pennsylvania Parenthood Initiative - 
It takes two people to become parents, the children need both of them!
Parents without Partners - Past President
Co-Founder of The Purple Heart Foundation
My Personal Custody Page - http://www.hky.com/custody.html

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From: al...@lxorguk.ukuu.org.uk (Alan Cox)
Subject: Re: ATAPI CD Writeable Drivers
Date: 1999/03/21
Message-ID: <m10Olqn-0007U1C@the-village.bc.nu>#1/1
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> >> Can anyone help?
> >
> >insmod ide-scsi
> >
> >Alan
> Alan,
> 
> I gave that a try but that module is not found.  Any ideas?

Then hope it was compiled in. The ATAPI M/O and CDR devices talk a subset
of SCSI and Linux presents them as SCSI devices.

So for example I have a magneto optical drive on /dev/hdc. Its handled
by ide-scsi and presented as /dev/sda

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From: ts...@tmcom.com (Tom Mandera)
Subject: Re: ATAPI CD Writeable Drivers
Date: 1999/03/22
Message-ID: <Pine.LNX.3.91.990321222650.2768F-100000@julie.tmcom.com>#1/1
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On Sun, 21 Mar 1999, Alan Cox wrote:

> > OK, I'm looking for the ATAPI CDR Writable drivers.  I've searched the
> > HOWTO's rufus .... the only think that I can find is about the SCSI
> > Drivers.
> 
> insmod ide-scsi

As someone else mentioned, I've found it works MUCH better if you disable 
IDE-CD support.

I recompiled with IDE-SCSI emulation, SCSI Generic, SCSI CD (and disk, I 
have an old 1.3gig Hitachi on a SB16-SCSI2).. I now have my Memorex 
16/2/2 IDE CD-RW cutting CDs under Linux.

I found little to NO documentation on IDE-SCSI and making my CD-RW work.. 
a friend was playing with the IDE-SCSI modules with his IDE-ROM and said 
he had to disable the IDE support.. works like a charm, now.

Is there a method to use the SCSI emulation *AND* native IDE-ROM support?

-Tom

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From: uzix...@umail.furryterror.org (Zygo Blaxell)
Subject: Re: ATAPI CD Writeable Drivers
Date: 1999/03/24
Message-ID: <7dbnp5$hog$1@naga.corel.eng>#1/1
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In article <Pine.LNX.3.91.99032...@julie.tmcom.com>,
Tom Mandera  <redhat-d...@redhat.com> wrote:
>Is there a method to use the SCSI emulation *AND* native IDE-ROM support?

Ummm, why would you want to?  Are there IDE CD-ROMs that don't work with
the IDE-SCSI emulation, or commands implemented by IDE CD-ROM support that
are not also implemented in SCSI CD-ROM support?  It would seem to me
that with IDE-SCSI emulation we don't need "native" IDE-CDROM drivers
at all any more.

-- 
Zygo Blaxell, Linux Engineer, Corel Corporation, zy...@corel.ca (work),
zbla...@furryterror.org (play).  It's my opinion, I tell you! Mine! All MINE!
Size of 'diff -Nurw [...] winehq corel' as of Wed Mar 24 16:14:02 EST 1999
Lines/files:  In 16054 / 120, Out 7340 / 76, Both 16159 / 167

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From: ts...@tmcom.com (Tom Mandera)
Subject: Re: ATAPI CD Writeable Drivers
Date: 1999/03/24
Message-ID: <36F9653C.5D1376AF@tmcom.com>#1/1
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Zygo Blaxell wrote:
> >Is there a method to use the SCSI emulation *AND* native IDE-ROM support?
> 
> Ummm, why would you want to?  Are there IDE CD-ROMs that don't work with
> the IDE-SCSI emulation, or commands implemented by IDE CD-ROM support that
> that with IDE-SCSI emulation we don't need "native" IDE-CDROM drivers

Perhaps there's a performance advantage to the IDE drivers over the
emulated SCSI-IDE?  

Why can I still access my IDE hard drives via the IDE drivers when using
SCSI-emulation?

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From: andr...@usa.net
Subject: Re: ATAPI CD Writeable Drivers
Date: 1999/03/24
Message-ID: <Pine.LNX.4.10.9903241738380.819-100000@thinkpad.velsoft.com>#1/1
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On Wed, 24 Mar 1999, Tom Mandera wrote:

> Zygo Blaxell wrote:
> > >Is there a method to use the SCSI emulation *AND* native IDE-ROM support?
> > 
> > Ummm, why would you want to?  Are there IDE CD-ROMs that don't work with
> > the IDE-SCSI emulation, or commands implemented by IDE CD-ROM support that
> > that with IDE-SCSI emulation we don't need "native" IDE-CDROM drivers
> 
> Perhaps there's a performance advantage to the IDE drivers over the
> emulated SCSI-IDE?  
> 
> Why can I still access my IDE hard drives via the IDE drivers when using
> SCSI-emulation?

I use SCSI emulation on my CD-RW, and the standard IDE driver on my
DVD-ROM.  This lets me work with some DVD-specific ioctls which I've
implemented for linux IDE driver, for instance.

Apparently the original intention of the IDE driver was so that you could
insmod ide-cd and ide-scsi, etc., and then change the driver at will.  I
use a patch I made against the Linux IDE driver to do this which I posted
to linux-kernel a few months back since I wanted that functionality, which
I am still using under 2.2.3 (I can echo ide-scsi > /proc/ide/hdd/driver).

With 2.2.4 you don't even need that--just reading the patch now there is a
parameter added to the ide-cd module which tells it to ignore certain
drives, though I haven't tried this.  So, I suppose with 2.2.4 if your CD
is hdc and your CD-RW is hdd build them modular and:

modprobe ide-cd ignore=hdd
modprobe ide-scsi

I would assume this method would provide something you want, though I
haven't tried it this way.

--
Andrew

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From: uzix...@umail.furryterror.org (Zygo Blaxell)
Subject: Re: ATAPI CD Writeable Drivers
Date: 1999/03/25
Message-ID: <7dc928$rdn$1@washu.furryterror.org>#1/1
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In article <Pine.LNX.4.10.99032...@thinkpad.velsoft.com>,
 <redhat-d...@redhat.com> wrote:
>I use SCSI emulation on my CD-RW, and the standard IDE driver on my
>DVD-ROM.  This lets me work with some DVD-specific ioctls which I've
>implemented for linux IDE driver, for instance.

Assuming that the DVD-ROM is using the MMC command set, wouldn't it
be more straightforward to use the SCSI-Generic-over-IDE configuration
instead of implementing the same thing as an extension to the IDE driver
in kernel space?  

>Apparently the original intention of the IDE driver was so that you could
>insmod ide-cd and ide-scsi, etc., and then change the driver at will.  I
>use a patch I made against the Linux IDE driver to do this which I posted
>to linux-kernel a few months back since I wanted that functionality, which
>I am still using under 2.2.3 (I can echo ide-scsi > /proc/ide/hdd/driver).

The last time I tried this, the system got sufficiently wedged that once
the reboot/fsck cycle was over I disabled IDE-CDROM entirely and never 
looked back.  

>With 2.2.4 you don't even need that--just reading the patch now there is a
>parameter added to the ide-cd module which tells it to ignore certain
>drives, though I haven't tried this.  So, I suppose with 2.2.4 if your CD
>is hdc and your CD-RW is hdd build them modular and:
>
>modprobe ide-cd ignore=hdd
>modprobe ide-scsi
>
>I would assume this method would provide something you want, though I
>haven't tried it this way.

I'm not interested in mixing the driver types.  I'm curious as to what
the IDE CD interface has left to offer that isn't also present (and in
many cases better implemented) in the SCSI command interface.

-- 
Zygo Blaxell, Linux Engineer, Corel Corporation, zy...@corel.ca (work),
zbla...@furryterror.org (play).  It's my opinion, I tell you! Mine! All MINE!
Size of 'diff -Nurw [...] winehq corel' as of Wed Mar 24 21:14:01 EST 1999
Lines/files:  In 16054 / 120, Out 7340 / 76, Both 16159 / 167

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From: andr...@usa.net (Andrew T Veliath)
Subject: Re: ATAPI CD Writeable Drivers
Date: 1999/03/25
Message-ID: <Pine.LNX.4.10.9903242243280.676-100000@thinkpad.velsoft.com>#1/1
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On 24 Mar 1999, Zygo Blaxell wrote:

> In article <Pine.LNX.4.10.99032...@thinkpad.velsoft.com>,
>  <redhat-d...@redhat.com> wrote:
> >I use SCSI emulation on my CD-RW, and the standard IDE driver on my
> >DVD-ROM.  This lets me work with some DVD-specific ioctls which I've
> >implemented for linux IDE driver, for instance.
> 
> Assuming that the DVD-ROM is using the MMC command set, wouldn't it
> be more straightforward to use the SCSI-Generic-over-IDE configuration
> instead of implementing the same thing as an extension to the IDE driver
> in kernel space?  

This is the plan, eventually.  But not having tested the key exchange yet,
I'm not jumping at porting code for no good reason until I can test it,
and I've not much time recently.

Not everyone is using ide-scsi now (I only acquired the need recently,
since I just got a CD-RW).  I've had the DVD-ROM for some time.

> >Apparently the original intention of the IDE driver was so that you could
> >insmod ide-cd and ide-scsi, etc., and then change the driver at will.  I
> >use a patch I made against the Linux IDE driver to do this which I posted
> >to linux-kernel a few months back since I wanted that functionality, which
> >I am still using under 2.2.3 (I can echo ide-scsi > /proc/ide/hdd/driver).
> 
> The last time I tried this, the system got sufficiently wedged that once
> the reboot/fsck cycle was over I disabled IDE-CDROM entirely and never 
> looked back.  

I have no trouble with this.

> >I would assume this method would provide something you want, though I
> >haven't tried it this way.
> 
> I'm not interested in mixing the driver types.  I'm curious as to what
> the IDE CD interface has left to offer that isn't also present (and in
> many cases better implemented) in the SCSI command interface.

I simply provided a solution to the original question.

Andrew

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