Om 2008.8: usb: unable to enumerate USB device

Andy Green andy at openmoko.com
Tue Aug 12 18:19:06 CEST 2008


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Somebody in the thread at some point said:
| On Aug 08, Steven ** wrote:
|
|> Try a different version of uboot.  There were some versions that would
|> kill USB approximately 50% of the time on boot.
|
| which uboot so you recomment ?
| now I see the same problem with the decent
|
|
u-boot-gta02v5-1.3.1+gitr54+dc633f4be2527f844158aa5085c278b0c3039d3f-r0.bin

That should be fine, it's only a few days old.

| hub 4-0:1.0: port 2 disabled by hub (EMI?), re-enabling...
| usb 4-2: USB disconnect, address 123
| usb 4-2: new full speed USB device using uhci_hcd and address 124
| 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 125
| 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 126
| usb 4-2: device not accepting address 126, error -71
| usb 4-2: new low speed USB device using uhci_hcd and address 127
| usb 4-2: device not accepting address 127, error -71
| hub 4-0:1.0: unable to enumerate USB device on port 2

... but for you it doesn't look like it is...

This happens all the time or just sometimes?

- -Andy
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