On Thu, Jan 26, 2006 at 10:52:08AM -0500, Alan Stern wrote:
>On Thu, 26 Jan 2006, Maldevian wrote:
>
>> I'm having another problem with it now. This is the dmesg ouput:
>
>usb 4-2: new low speed USB device using uhci_hcd and address 2
>usb 4-2: device descriptor read/64, error -71
>usb 4-2: device descriptor read/64, error -71
>usb 4-2: new low speed USB device using uhci_hcd and address 3
>usb 4-2: device descriptor read/64, error -71
>usb 4-2: device descriptor read/64, error -71
>usb 4-2: new low speed USB device using uhci_hcd and address 4
>usb 4-2: device not accepting address 4, error -71
>usb 4-2: new low speed USB device using uhci_hcd and address 5
>usb 4-2: device not accepting address 5, error -71
>
>The device isn't recognized anymore, it doesn't appear when I type
>lsusb, and the red led it has isn't working. I have started thinking
>that it has broke.
>
>That's entirely possible.
>
>What does -71 error stand for ?
>
>It is -EPROTO, which means a low-level USB error occurred. Most likely
>because the device failed to reply to the computer.
>
>Alan Stern
This is almost exactly the error I am seeing. I wrote a longish email about
it to the list yesterday including my dmesg output and kernel .config file.
One important thing I found was that the external device I was using (a
harddrive enclosure) worked fine under kernel 2.6.12 but I got these errors on
any newer kernels.
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