Om 2008.8: usb: unable to enumerate USB device
Steven **
montgoss at gmail.com
Fri Aug 8 20:11:55 CEST 2008
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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