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SubjectRe: [PATA] Failed to set xfermode on LITE-ON LTR-48246S
Hello!

As reported by John Williams and others like in
http://www.mail-archive.com/linux-ide@vger.kernel.org/msg03088.html
I too have a problem with 2.6.20.1 using ata_piix not detecting the
CD-ROM any more. Applying the patch from
http://lkml.org/lkml/2007/2/12/24 did not help, but additionally
applying
http://readlist.com/lists/vger.kernel.org/linux-kernel/45/228948.html
made it work. Here's the relevant extra debugging output:

ata_piix 0000:00:1f.1: version 2.00ac7
ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 18 (level, low) -> IRQ 17
PCI: Setting latency timer of device 0000:00:1f.1 to 64
ata1: PATA max UDMA/100 cmd 0x1F0 ctl 0x3F6 bmdma 0x2800 irq 14
ata2: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0x2808 irq 15
scsi0 : ata_piix
ata1.00: ATA-7, max UDMA/133, 160086528 sectors: LBA
ata1.00: ata1: dev 0 multi count 16
ata1.00: configured for UDMA/100
scsi1 : ata_piix
ata2.00: ATAPI, max UDMA/33
ata2: ata_altstatus take 4us
ata2.00: configured for UDMA/33
scsi 0:0:0:0: Direct-Access ATA Maxtor 6Y080L0 YAR4 PQ: 0 ANSI: 5
SCSI device sda: 160086528 512-byte hdwr sectors (81964 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
SCSI device sda: 160086528 512-byte hdwr sectors (81964 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sda: sda1 sda2 sda3 < sda5 sda6 sda7 sda8 sda9 sda10 sda11 sda12 > sda4
sd 0:0:0:0: Attached scsi disk sda
scsi 1:0:0:0: CD-ROM LITE-ON LTR-48246S SID4 PQ: 0 ANSI: 5
sr0: scsi3-mmc drive: 230x/48x writer cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.20
sr 1:0:0:0: Attached scsi CD-ROM sr0
Something other I should try to get this fixed for 2.6.20.2+?

BYtE
Philipp
--
/ / (_)__ __ ____ __ Philipp Hahn
/ /__/ / _ \/ // /\ \/ /
/____/_/_//_/\_,_/ /_/\_\ pmhahn@titan.lahn.de
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