Hi there,

I just joint the list and I have a question about my DVD burner. I tried several 
kernels and hardware with the following success (??):

1. If I replace the DVD burner by a harddisk everything works (on all testet hardware 
& kernels)
2. Everything works under USB 1.1 (on all tested hardware and kernel)
3. USB 2.0 does work in kernel 2.4.19 (hardware of a friend). But not in kernel 
2.4.22, 2.4.22-ac4,2.4.23-rc4,2.4.23-rc5,2.6.0test9-11 (all tested hardware).

Therefore I conjecture that the problem is in the ehci-hcd module. Unfortunately, I 
cannot use kernel 2.4.19 on my laptop since my USB2.0 cardbus adapter doesn't work in 
this kernel.

cat /proc/scsi/usbstorage-?/? (harddisk)
Host scsi0: usb-storage
       Vendor: Genesyslogic
      Product: USB Mass Storage Device
Serial Number: None
     Protocol: Transparent SCSI
    Transport: Bulk
         GUID: 05e307020000000000000000
     Attached: Yes


cat /proc/scsi/usbstorage-?/? (DVD)
 Host scsi1: usb-storage
       Vendor: Genesyslogic
      Product: USB Mass Storage Device 
Serial Number: None
     Protocol: 8020i
    Transport: Bulk
         GUID: 05e307010000000000000000

Here are parts of dmesg
usb-storage: USB Mass Storage device detected
usb-storage: Endpoints: In: 0xcc2da580 Out: 0xcc2da594 Int: 0x00000000 (Period 0)
usb-storage: New GUID 05e307010000000000000000
usb-storage: GetMaxLUN command result is 1, data is 0
usb-storage: Transport: Bulk
usb-storage: Protocol: 8020i
usb-storage: *** thread sleeping.
scsi0 : SCSI emulation for USB Mass Storage devices
usb-storage: queuecommand() called
usb-storage: *** thread awakened.
usb-storage: Command INQUIRY (6 bytes)
usb-storage: 12 00 00 00 ff 00 00 00 46 02 00 00
usb-storage: Bulk command S 0x43425355 T 0x1 Trg 0 LUN 0 L 255 F 128 CL 12
usb-storage: Bulk command transfer result=0
usb-storage: usb_stor_transfer_partial(): xfer 255 bytes
usb-storage: usb_stor_bulk_msg() returned 0 xferred 96/255
usb-storage: Bulk data transfer result 0x1
usb-storage: Attempting to get CSW...
usb-storage: clearing endpoint halt for pipe 0xc0008280
usb-storage: usb_stor_clear_halt: result=0
usb-storage: Attempting to get CSW (2nd try)...
usb-storage: Bulk status result = 0
usb-storage: Bulk status Sig 0x53425355 T 0x1 R 159 Stat 0x0
usb-storage: Fixing INQUIRY data to show SCSI rev 2 - was 0
usb-storage: scsi cmd done, result=0x0
usb-storage: *** thread sleeping.
  Vendor: HL-DT-ST  Model: DVDRAM GSA-4040B  Rev: A301
  Type:   CD-ROM                             ANSI SCSI revision: 02
usb-storage: queuecommand() called
usb-storage: *** thread awakened.
usb-storage: Bad target number (1/0)
usb-storage: *** thread sleeping.
usb-storage: queuecommand() called
usb-storage: *** thread awakened.usb-storage: Bad target number (7/0)
usb-storage: *** thread sleeping.
Attached scsi CD-ROM sr0 at scsi0, channel 0, id 0, lun 0
usb-storage: queuecommand() called
usb-storage: *** thread awakened.
usb-storage: Command MODE_SENSE (6 bytes)
usb-storage: 1a 00 2a 00 80 00 00 00 1f 12 e0 d2
usb-storage: Bulk command S 0x43425355 T 0x2 Trg 0 LUN 0 L 128 F 128 CL 12
usb-storage: Bulk command transfer result=0
usb-storage: usb_stor_transfer_partial(): xfer 128 bytes
usb-storage: usb_stor_bulk_msg() returned 0 xferred 72/128
usb-storage: Bulk data transfer result 0x1
usb-storage: Attempting to get CSW...
usb-storage: clearing endpoint halt for pipe 0xc0008280
usb-storage: usb_stor_clear_halt: result=0
usb-storage: Attempting to get CSW (2nd try)...
usb-storage: Bulk status result = 0
usb-storage: Bulk status Sig 0x53425355 T 0x2 R 56 Stat 0x0
usb-storage: -- converting 10 byte sense data to 6 byte
usb-storage: scsi cmd done, result=0x0
usb-storage: *** thread sleeping.
sr0: scsi3-mmc drive: 32x/32x writer dvd-ram cd/rw xa/form2 cdda tray
WARNING: USB Mass Storage data integrity not assured
USB Mass Storage device found at 2
USB Mass Storage support registered.

Mounting does work in this case but I can't copy any data. This results in the 
following errors (dmesg)
usb-storage: Command READ_10 (10 bytes)
usb-storage:  28 00 00 00 00 5e 00 00 30 00
usb-storage: Bulk Command S 0x43425355 T 0x86 L 98304 F 128 Trg 0 LUN 0 CL 12
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 98304 bytes, 24 entries
usb-storage: Status code 0; transferred 98304/98304Nov 24 18:34:02 nb09 kernel: 
usb-storage: - transfer complete
usb-storage: Bulk data transfer result 0x0
kernel: usb-storage: Attempting to get CSW...
usb-storage: usb_stor_bulk_transfer_buf: xfer 13 bytes
usb-storage: Status code 0; transferred 0/13
usb-storage: -- short transfer
usb-storage: Bulk status result = 1
usb-storage: -- transport indicates error, resetting
usb-storage: usb_stor_Bulk_reset called
usb-storage: usb_stor_control_msg: rq=ff rqtype=21 value=0000 index=00 len=0
usb-storage: Soft reset: clearing bulk-in endpoint halt
usb-storage: usb_stor_control_msg: rq=01 rqtype=02 value=0000 index=81 len=0
usb-storage: usb_stor_clear_halt: result = 0
usb-storage: Soft reset: clearing bulk-out endpoint halt
usb-storage: usb_stor_control_msg: rq=01 rqtype=02 value=0000 index=02 len=0
usb-storage: usb_stor_clear_halt: result = 0
usb-storage: Soft reset done

Afterwards, it tries several times to get the data which results in the same error.

Any help is appreciated.

Thanks
matthias
usb-storage: Bad target number (2/0)
...


     Attached: Yes


And here come parts of dmesg on my laptop with USB2.0

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