USB DVD ... Again.

USB DVD ... Again.

[Wakko Warner]

I'm about lost onthis one =)

----- Forwarded message from Alan Stern <stern@rowland.harvard.edu> -----

Date: Fri, 3 Dec 2004 10:22:43 -0500 (EST)
From: Alan Stern <stern@rowland.harvard.edu>
To: Wakko Warner <wakko@animx.eu.org>
cc: linux-usb-devel@lists.sourceforge.net
Subject: Re: [linux-usb-devel] FWD: Re: USB DVD

On Thu, 2 Dec 2004, Wakko Warner wrote:

> I have the debug information at
> http://veg.animx.eu.org/usb-storage.debug.dvd.txt
> It's around 190kb in size.
> 
> ----- Forwarded message from Greg KH <greg@kroah.com> -----
> 
> Date:	Fri, 26 Nov 2004 19:28:17 -0800
> From: Greg KH <greg@kroah.com>
> To: linux-kernel@vger.kernel.org
> Subject: Re: USB DVD
> X-Mailing-List:	linux-kernel@vger.kernel.org
> 
> On Thu, Nov 25, 2004 at 10:03:13AM -0500, Wakko Warner wrote:
> > I have a USB DVD writer (I don't think the 'writer' part makes a difference)
> > that when I attempt to view a DVD Movie, it can't read some of the sectors
> > (DVD Auth I guess).  The same drive internally on ide works.  Is a problem
> > with USB or the enclosure?
> 
> Odds are it's the enclosure :)
> 
> But to be sure, can you enable CONFIG_USB_STORAGE_DEBUG and send the
> resulting log to the linux-usb-devel mailing list?

It's not a USB problem.  The device is returning an error code with sense 
key = 0x05 (Illegal Request) and ASC/ASCQ = 0x6f, 0x04 (I don't know what 
those mean).  Maybe someone who is familiar with the SCSI DVD protocol can 
explain.  However it's clear that the low-level USB transport is working 
without errors.

Alan Stern


----- End forwarded message -----
-- 
 Lab tests show that use of micro$oft causes cancer in lab animals

Re: USB DVD ... Again.

[Doug Maxey]

On Fri, 03 Dec 2004 12:22:14 EST, Wakko Warner wrote:
>I'm about lost onthis one =)
>
>----- Forwarded message from Alan Stern <stern@rowland.harvard.edu> -----
>
>Date: Fri, 3 Dec 2004 10:22:43 -0500 (EST)
>From: Alan Stern <stern@rowland.harvard.edu>
>To: Wakko Warner <wakko@animx.eu.org>
>cc: linux-usb-devel@lists.sourceforge.net
>Subject: Re: [linux-usb-devel] FWD: Re: USB DVD
>
>On Thu, 2 Dec 2004, Wakko Warner wrote:
>
>> I have the debug information at
>> http://veg.animx.eu.org/usb-storage.debug.dvd.txt
>> It's around 190kb in size.
>> 
>> ----- Forwarded message from Greg KH <greg@kroah.com> -----
>> 
>> Date:	Fri, 26 Nov 2004 19:28:17 -0800
>> From: Greg KH <greg@kroah.com>
>> To: linux-kernel@vger.kernel.org
>> Subject: Re: USB DVD
>> X-Mailing-List:	linux-kernel@vger.kernel.org
>> 
>> On Thu, Nov 25, 2004 at 10:03:13AM -0500, Wakko Warner wrote:
>> > I have a USB DVD writer (I don't think the 'writer' part makes a difference)
>> > that when I attempt to view a DVD Movie, it can't read some of the sectors
>> > (DVD Auth I guess).  The same drive internally on ide works.  Is a problem
>> > with USB or the enclosure?
>> 
>> Odds are it's the enclosure :)
>> 
>> But to be sure, can you enable CONFIG_USB_STORAGE_DEBUG and send the
>> resulting log to the linux-usb-devel mailing list?
>
>It's not a USB problem.  The device is returning an error code with sense 
>key = 0x05 (Illegal Request) and ASC/ASCQ = 0x6f, 0x04 (I don't know what 
>those mean).  Maybe someone who is familiar with the SCSI DVD protocol can 
>explain.  However it's clear that the low-level USB transport is working 
>without errors.
>
>Alan Stern

Official definition:
6F/04 - MEDIA REGION CODE IS MISMATCHED TO LOGICAL UNIT REGION

05 - Illegal Request

Means that a value was set in the cdb to do an operation the drive could 
not handle.

++doug

Re: USB DVD ... Again.

[Wakko Warner]

Doug Maxey wrote:
> 
> On Fri, 03 Dec 2004 12:22:14 EST, Wakko Warner wrote:
> >I'm about lost onthis one =)
> >
> >----- Forwarded message from Alan Stern <stern@rowland.harvard.edu> -----
> >
> >Date: Fri, 3 Dec 2004 10:22:43 -0500 (EST)
> >From: Alan Stern <stern@rowland.harvard.edu>
> >To: Wakko Warner <wakko@animx.eu.org>
> >cc: linux-usb-devel@lists.sourceforge.net
> >Subject: Re: [linux-usb-devel] FWD: Re: USB DVD
> >
> >It's not a USB problem.  The device is returning an error code with sense 
> >key = 0x05 (Illegal Request) and ASC/ASCQ = 0x6f, 0x04 (I don't know what 
> >those mean).  Maybe someone who is familiar with the SCSI DVD protocol can 
> >explain.  However it's clear that the low-level USB transport is working 
> >without errors.
> >
> >Alan Stern
> 
> Official definition:
> 6F/04 - MEDIA REGION CODE IS MISMATCHED TO LOGICAL UNIT REGION
> 
> 05 - Illegal Request
> 
> Means that a value was set in the cdb to do an operation the drive could 
> not handle.

So I guess it is the usb enclosure or the usb subsystem is doing something
wrong.  The drive works fine when attached internally or I use a
non-encrypted dvd..

-- 
 Lab tests show that use of micro$oft causes cancer in lab animals