Om 2008.8: usb: unable to enumerate USB device

[Steven **]

Try a different version of uboot.  There were some versions that would
kill USB approximately 50% of the time on boot.

-Steven

On Fri, Aug 8, 2008 at 10:37 AM, Harald Koenig
<koenig at tat.physik.uni-tuebingen.de> wrote:
> Hi,
>
> with the Om 2008.8 I sometimes have problems with the USB connection
> to my notebook or PC: I don't get a usb address when connecting:
>
> connecting to my notebook running opensuse 11.0 x84_64:
>
>        usb 4-2: new full speed USB device using uhci_hcd and address 34
>        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 35
>        usb 4-2: device descriptor read/64, error -71
>        usb 4-2: device descriptor read/64, error -71
>        usb 4-2: new full speed USB device using uhci_hcd and address 36
>        usb 4-2: device not accepting address 36, error -71
>        usb 4-2: new low speed USB device using uhci_hcd and address 37
>        usb 4-2: device not accepting address 37, error -71
>        hub 4-0:1.0: unable to enumerate USB device on port 2
>
>
> and connecting to a PC running suse 10.1 running kernel 2.6.16.54-0.2.5-smp x86_64
>
>        usb 1-2: new low speed USB device using uhci_hcd and address 8
>
> hmm, why low speed here?
>
>        usb 1-2: device descriptor read/64, error -71
>        usb 1-2: device descriptor read/64, error -71
>        usb 1-2: new low speed USB device using uhci_hcd and address 9
>        usb 1-2: device descriptor read/64, error -71
>        usb 1-2: device descriptor read/64, error -71
>        usb 1-2: new low speed USB device using uhci_hcd and address 10
>        usb 1-2: device not accepting address 10, error -71
>        usb 1-2: new low speed USB device using uhci_hcd and address 11
>        usb 1-2: device not accepting address 11, error -71
>
>
>
> after suspend/resumg of the FR now usb works again -- from the notebook's dmesg:
>
>        usb 4-1: new full speed USB device using uhci_hcd and address 38
>        usb 4-1: configuration #1 chosen from 2 choices
>        usb0: register 'cdc_ether' at usb-0000:00:1d.0-1, CDC Ethernet Device, aa:bb:cc:dd:ee:ff
>        usb 4-1: New USB device found, idVendor=1457, idProduct=5122
>        usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
>        usb 4-1: Product: RNDIS/Ethernet Gadget
>        usb 4-1: Manufacturer: Linux 2.6.24/s3c2410_udc
>
> usb/network first did work with Om 2008.8. at least once reboot of the FR didn't help
> with the FR staying connected to the notebook's usb.
>
> this is not completely new to Om 2008.8, I've seen the same intermitted usb problems
> for the last few days (1 week?) using more or less decent update kernels.
>
> at least once before Om 2008.8 I tried to reboot the notebook, didn't help
> to get usb back at that time.  usb later worked again.
>
>
> known problem ?
> what to check/test ?
>
> I'll try to figure out if suspend/resume always fixes this usb "lockup".
>
>
>
> Harald
> --
> "I hope to die                                      ___       _____
> before I *have* to use Microsoft Word.",           0--,|    /OOOOOOO\
> Donald E. Knuth, 02-Oct-2001 in Tuebingen.        <_/  /  /OOOOOOOOOOO\
>                                                    \  \/OOOOOOOOOOOOOOO\
>                                                      \ OOOOOOOOOOOOOOOOO|//
>                                                       \/\/\/\/\/\/\/\/\/
> Harald Koenig                                           //  /     \\  \
> koenig at tat.physik.uni-tuebingen.de                     ^^^^^       ^^^^^
>
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