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From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
To: Joel Soete <soete.joel@scarlet.be>
Subject: Re: 2.6.20-rc6 libata PATA ATAPI CDROM is not working
Date: Tue, 13 Feb 2007 19:15:12 +0100
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Cc: Tejun Heo <htejun@gmail.com>, Luming Yu <luming.yu@gmail.com>,
       Alan Cox <alan@redhat.com>, Ioan Ionita <opslynx@gmail.com>,
       Alan <alan@lxorguk.ukuu.org.uk>, linux-kernel@vger.kernel.org,
       jgarzik@pobox.com
References: <df47b87a0611161522o3ad007f5i8804c876c50e591c@mail.gmail.com> <45D0D133.8070801@scarlet.be> <45D1F6E4.2080102@scarlet.be>
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Hi,

On Tuesday 13 February 2007 18:35, Joel Soete wrote:

> scsi3 : ata_piix
> ata1.00: ATA-4, max UDMA/66, 29336832 sectors: LBA
> ata1.00: ata1: dev 0 multi count 16
> ata1.00: configured for UDMA/33

<...>

> scsi 3:0:0:0: Direct-Access ? ? ATA ? ? ?QUANTUM FIREBALL A03. PQ: 0 ANSI: 5

IDE driver with CONFIG_IDEDMA_IVB=y should give you UDMA/66.

Could you send me output of "hdparm --Istdout /dev/sdc" command?

> scsi4 : ata_piix
> ata2.01: ATAPI, max MWDMA1
> ata2.01: configured for MWDMA1

and "hdparm --Istdout /dev/sr0"

[ max speed == MWDMA1 is possible but quite unusual ]

Thanks,
Bart
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