Re: USB Enclosure for ATA Disk not working

[Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>]

On Sun, 2 Jul 2006, Ritesh Raj Sarraf wrote:

> HI,
> 
> I just purchase a USB 2.0 Hard Drive Enclosure which is not at all working with
> Kernel 2.6.17. My USB ports have both 1.1 and 2.0. On both I get same error
> messages.
> 
> Following are the error messages I get:
> 
> usb 1-2.3: new full speed USB device using uhci_hcd and address 4
> usb 1-2.3: configuration #1 chosen from 1 choice
> scsi1 : SCSI emulation for USB Mass Storage devices
> usb-storage: device found at 4
> usb-storage: waiting for device to settle before scanning
> usb 1-2.3: reset full speed USB device using uhci_hcd and address 4
> usb 1-2.3: device descriptor read/64, error -110
> usb 1-2.3: device descriptor read/64, error -110
> usb 1-2.3: reset full speed USB device using uhci_hcd and address 4
> usb 1-2.3: device descriptor read/64, error -110
> usb 1-2.3: device descriptor read/64, error -110
> usb 1-2.3: reset full speed USB device using uhci_hcd and address 4
> usb 1-2.3: device not accepting address 4, error -110
> usb 1-2.3: reset full speed USB device using uhci_hcd and address 4
> usb 1-2.3: device not accepting address 4, error -110
>  1:0:0:0: scsi: Device offlined - not ready after error recovery
> usb 1-2.3: USB disconnect, address 4
> usb-storage: device scan complete
> usb 1-2.3: new full speed USB device using uhci_hcd and address 5
> usb 1-2.3: device descriptor read/64, error -110
> usb 1-2.3: device descriptor read/64, error -110
> usb 1-2.3: new full speed USB device using uhci_hcd and address 6
> 
> 
> Should I take that the USB Hard Drive enclosure is bad or is it something to do
> with the usb-storage driver ??

I doubt very much that there is a problem with the usb-storage driver.

The enclosure might also be okay.  Have you tried connecting it directly 
to your computer instead of going through an intermediate hub?  Maybe the 
hub or one of the cables is the source of the problem.

Or perhaps your device needs some sort of blacklist entry.

USB devices sometimes have strange hardware incompatibilities for no 
apparent reason.  For example, I have a USB drive enclosure that doesn't 
work on one of my computers.  Other USB mass storage devices work okay on 
the same computer using the same USB cable.  The enclosure and cable both 
work okay when attached to a different computer.  And if I use a different 
cable with both the original computer and enclosure, again they work.

In other words, changing any one of the three components (computer, 
enclosure, or cable) is enough to make things work.  In that situation 
it's hard to say that any one of them is at fault.

If you want to get more details about what's going wrong, try turning on 
USB mass storage verbose debugging in the kernel configuration 
(CONFIG_USB_STORAGE_DEBUG) and look at the dmesg log.

Alan Stern


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