From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mark Lord <lkml@rtr.ca>
Subject: ATA_12 support for libata/ATAPI devices
Date: Tue, 02 Jan 2007 16:50:40 -0500
Message-ID: <459AD3B0.70202@rtr.ca>
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To: Tejun Heo <htejun@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>, Jeff Garzik <jgarzik@pobox.com>, Alan Cox <alan@lxorguk.ukuu.org.uk>, IDE/ATA development list <linux-ide@vger.kernel.org>

Tejun Heo wrote:
> Mark Lord wrote:
>> Tejun Heo wrote:
..
>>> Support for IDENTIFY PACKET DEVICE would be nice too.
>> It already does that, using HDIO_DRIVE_CMD to retrieve it
>> in the same way as for regular IDENTIFY DEVICE commands.
> 
> Hmmm... My hdparm doesn't seem to do that.
> 
> # hdparm -V
> hdparm v6.9
> # hdparm -I /dev/sr0
> 
> /dev/sr0:
>  HDIO_DRIVE_CMD(identify) failed: Input/output error
> 
> Am I missing something?

Okay, I've dug through the code and found bugs in SCSI and libata.
After fixing those, "hdparm -I" now works unmodified for libata ATAPI.

I'll post fixes shortly, after some more testing.

Cheers