On Tue, 20 Feb 2007, Artur wrote: > Hello, > I'm trying to find similar issue by Googling - in linux-usb-users group > as well, but I can not come across it. I would like to copy files from > CD-ROM or DVD using DVD RW Benq DW 1650 device connected to USB port by > enclosure with PL-3507 (05174AC) chipset. After a few minuts command > line shows error: > > [EMAIL PROTECTED]:~# mount /dev/sr0 /packages/ > mount: block device /dev/sr0 is write-protected, mounting read-only > [EMAIL PROTECTED]:~# cp /packages/extra/k3b/k3b-0.12.17-i486-1.tgz > /tmp/packages_Benq/ > cp: reading `/packages/extra/k3b/k3b-0.12.17-i486-1.tgz': Input/output error > > I spotted that the problem concern a large file because it working well > with small files:
File size probably has nothing to do with it. > Where is the problem? Maybe it is because USB ports in PC is 1.1 > standard and enclosuer has 2.0 USB port? No. USB 2.0 devices are compatible with USB 1.1 controllers. > /var/log/messages: > Feb 20 23:14:35 artur kernel: usb 1-1: new full speed USB device using > uhci_hcd and address 3 > Feb 20 23:14:35 artur kernel: usb 1-1: Product: ATAPI-6 Bridge Controller > Feb 20 23:14:35 artur kernel: usb 1-1: Manufacturer: Prolific Technology > Inc. > Feb 20 23:14:35 artur kernel: usb 1-1: SerialNumber: 22770 > Feb 20 23:14:35 artur kernel: usb 1-1: configuration #1 chosen from 1 choice > Feb 20 23:14:35 artur kernel: scsi1 : SCSI emulation for USB Mass > Storage devices > Feb 20 23:14:40 artur kernel: Vendor: BENQ Model: DVD DD > DW1650 Rev: BCIC > Feb 20 23:14:40 artur kernel: Type: > CD-ROM ANSI SCSI revision: 00 > Feb 20 23:14:43 artur kernel: sr 1:0:0:0: Attached scsi generic sg0 type 5 > Feb 20 23:16:47 artur kernel: usb 1-1: reset full speed USB device using > uhci_hcd and address 3 > Feb 20 23:16:58 artur kernel: usb 1-1: reset full speed USB device using > uhci_hcd and address 3 > Feb 20 23:17:34 artur kernel: usb 1-1: reset full speed USB device using > uhci_hcd and address 3 > Feb 20 23:17:34 artur kernel: sr 1:0:0:0: SCSI error: return code = > 0x8000002 > Feb 20 23:17:34 artur kernel: sr0: Current: sense key=0x4 > Feb 20 23:17:34 artur kernel: ASC=0x8 ASCQ=0x3 This error code indicates a hardware error of some sort. Apparently there was a communication problem between the drive and the USB enclosure. Alan Stern ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
