I think this may be in relation to DVD region settings, so I will try to
investigate region free-ing the DVDRW drive..

Mick

> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] Behalf Of Mick
> Sent: Saturday, 17 July 2004 5:09 PM
> Cc: [EMAIL PROTECTED]
> Subject: FW: [Linux-usb-users] USB DVD
>
>
> OK I'm back..
>
> Now I've a more than a little out of my depth on this one.  I *had* an old
> DVD-ROM in my USB 2 case before, and after making the bellow suggested
> changes to my kernel and then I was able to read DVD movies fine..
>
> (from http://search.luky.org/linux-kernel.2004/msg00391.html)
>
> >          case DVD_READ_STRUCT: {
> >                  dvd_struct *s;
> >                  int size = sizeof(dvd_struct);
> > //              if (!CDROM_CAN(CDC_DVD))
> > //                      return -ENOSYS;
> >                  if ((s = (dvd_struct *) kmalloc(size,
> > GFP_KERNEL)) == NULL)
> >                          return -ENOMEM;
> >                  cdinfo(CD_DO_IOCTL, "entering DVD_READ_STRUCT\n");
>  and
> >          case DVD_AUTH: {
> >                  dvd_authinfo ai;
> > //              if (!CDROM_CAN(CDC_DVD))
> > //                      return -ENOSYS;
> >                  cdinfo(CD_DO_IOCTL, "entering DVD_AUTH\n");
> >                  IOCTL_IN(arg, dvd_authinfo, ai);
> >                  if ((ret = dvd_do_auth (cdi, &ai)))
>
> Now, however, i have made the final step and upgraded to a DVD burner
> (LITEON SOHW-812S) and I'mback where I started, I cannot read DVD
> movies any
> more..
>
> I think this is the importand part of the debug:
> usb-storage: -- code: 0x70, key: 0x5, ASC: 0x6f, ASCQ: 0x3
> usb-storage: Illegal Request: Read of scrambled sector without
> authentication
>
> As I still have usb-verbose debug enable in my kernel, here is the rest of
> it just in case I'm wrong..
>
> (a document defining MCC errors??)
>
> Here is the relavent debug..
> usb-storage: queuecommand called
> usb-storage: *** thread awakened.
> usb-storage: Command READ_10 (10 bytes)
> usb-storage:  28 00 00 00 2d d7 00 00 02 00
> usb-storage: Bulk Command S 0x43425355 T 0x2ca L 4096 F 128 Trg 0 LUN 0 CL
> 10
> usb-storage: usb_stor_bulk_transfer_buf: xfer 31 bytes
> usb-storage: Status code 0; transferred 31/31
> usb-storage: -- transfer complete
> usb-storage: Bulk command transfer result=0
> usb-storage: usb_stor_bulk_transfer_sglist: xfer 4096 bytes, 1 entries
> usb-storage: Status code -121; transferred 2048/4096
> usb-storage: -- short read transfer
> usb-storage: Bulk data transfer result 0x1
> usb-storage: Attempting to get CSW...
> usb-storage: usb_stor_bulk_transfer_buf: xfer 13 bytes
> usb-storage: Status code -32; transferred 0/13
> usb-storage: clearing endpoint halt for pipe 0xc0040380
> usb-storage: usb_stor_control_msg: rq=01 rqtype=02 value=0000
> index=88 len=0
> usb-storage: usb_stor_clear_halt: result = 0
> usb-storage: Attempting to get CSW (2nd try)...
> usb-storage: usb_stor_bulk_transfer_buf: xfer 13 bytes
> usb-storage: Status code 0; transferred 13/13
> usb-storage: -- transfer complete
> usb-storage: Bulk status result = 0
> usb-storage: Bulk Status S 0x53425355 T 0x2ca R 2048 Stat 0x1
> usb-storage: -- transport indicates command failure
> usb-storage: -- unexpectedly short transfer
> usb-storage: Issuing auto-REQUEST_SENSE
> usb-storage: Bulk Command S 0x43425355 T 0x800002ca L 18 F 128 Trg 0 LUN 0
> CL 6
> usb-storage: usb_stor_bulk_transfer_buf: xfer 31 bytes
> usb-storage: Status code 0; transferred 31/31
> usb-storage: -- transfer complete
> usb-storage: Bulk command transfer result=0
> usb-storage: usb_stor_bulk_transfer_buf: xfer 18 bytes
> usb-storage: Status code 0; transferred 18/18
> usb-storage: -- transfer complete
> usb-storage: Bulk data transfer result 0x0
> usb-storage: Attempting to get CSW...
> usb-storage: usb_stor_bulk_transfer_buf: xfer 13 bytes
> usb-storage: Status code 0; transferred 13/13
> usb-storage: -- transfer complete
> usb-storage: Bulk status result = 0
> usb-storage: Bulk Status S 0x53425355 T 0x800002ca R 0 Stat 0x0
> usb-storage: -- Result from auto-sense is 0
> usb-storage: -- code: 0x70, key: 0x5, ASC: 0x6f, ASCQ: 0x3
> usb-storage: Illegal Request: Read of scrambled sector without
> authentication
> usb-storage: scsi cmd done, result=0x2
> usb-storage: *** thread sleeping.
> end_request: I/O error, dev sr0, sector 46940
> Buffer I/O error on device sr0, logical block 11735
> Buffer I/O error on device sr0, logical block 11736
>
> Any pointers as to whats going wrong / how to fix??
>
> Mick
>
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] Behalf Of Mick
> Sent: Sunday, 20 June 2004 9:12 PM
> To: Brad Campbell; [EMAIL PROTECTED]
> Subject: RE: [Linux-usb-users] USB DVD
>
>
> > Checkout these 2 excerpts from drivers/cdrom/cdrom.c. Comment out
> > the bits I have here and you will
> > be cooking with gas.
> >
> >
> >
>
> This seems to be the issue for my DVD troubles. Thanks heaps Brad (title
> 'usb troubleshooting issues). Stragnly enough xine now plays the disks but
> mplayer still does not.  I will investigate this more
> thoroughlyand post at
> a later date.
>
> Just like to say "Wow!".  Very nice to note have to go tomy
> garage to change
> disks now..(is have usb from grage to HT room)Wee!
>
> Mick
>
>
>
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