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Re: Plextor CDROM commandset

daemon@ATHENA.MIT.EDU (Jens Axboe)
Tue May 9 21:30:51 2000

Date:	Wed, 10 May 2000 03:28:30 +0200
From: Jens Axboe <axboe@suse.de>
To: cowo <cowo@libero.it>
Cc: linux-scsi@vger.rutgers.edu
Message-ID: <20000510032830.A26294@suse.de>
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In-Reply-To: <Pine.LNX.4.21.0005090927590.517-100000@braveheart.cowo.net>; from cowo@libero.it on Tue, May 09, 2000 at 09:28:28AM +0200

On Tue, May 09 2000, cowo wrote:
> Hello
> 
> Sorry if it's not the right place :-)
> I'm trying to execute a SCAN command on a Plextor 40TSi. 
> CDB is this:

What SCAN command? MEDIUM_SCAN?

> Raw sense data (in hex):
>   70 00 05 00 00 00 00 0a 00 00 00 00 20 00 00 00

05-20-00 means command opcode not support, the unit does not support
this particular command.

> Cmd handling is done by a handle_SCSI_cmd() similar to the one described
> in SCSI prog HOWTO and works well. Exactly THE SAME command works on a
> Teac CD-R58s. It seems to me that Plextor does not support this command,
> but how is it possible? How can I implement a SCAN function?
> I hope I've done a mistake somewhere...

It would be very helpful to know exactly what command you are talking
about, if this is MEDIUM_SCAN it has never (AFAIK) been mandatory
for CD-ROM devices.

-- 
*  Jens Axboe <axboe@suse.de>
*  Linux CD/DVD-ROM, SuSE Labs
*  http://kernel.dk

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