unable to enumerate USB device

[Tim]

On Tue, 2008-07-29 at 12:35 -0500, Mikkel L. Ellertson wrote:
> This is still an F8 machine. I get them both at bootup, and 
> sometimes when I plug in a new USB device.

I haven't tried 8, I skipped from 7 to 9.

> Jul 29 12:03:20 mikkel kernel: hub 1-0:1.0: unable to enumerate USB device on port 6
> Jul 29 12:03:21 mikkel kernel: usb 4-3: new full speed USB device using ohci_hcd and address 13
> Jul 29 12:03:21 mikkel kernel: usb 4-3: configuration #1 chosen from 1 choice
> Jul 29 12:03:21 mikkel kernel: usb 4-3: New USB device found, idVendor=0830, idProduct=0050
> Jul 29 12:03:21 mikkel kernel: usb 4-3: New USB device strings: Mfr=1, Product=2, SerialNumber=
> Jul 29 12:03:21 mikkel kernel: usb 4-3: Product: Palm Handheld
> Jul 29 12:03:21 mikkel kernel: usb 4-3: Manufacturer: Palm, Inc.
> Jul 29 12:03:21 mikkel kernel: usb 4-3: SerialNumber: PalmSN12345678
> Jul 29 12:04:33 mikkel kernel: usb 4-3: USB disconnect, address 13
> 
> Taking a deeper look at things, I noticed that hub 1 is a version 
> 2.0 hub, and hub 4 is a version 1.10 hub. These are both internal 
> hubs, so I wounder if they are using the same socket? Could it be 
> that the high speed hub (v2.0) tries to talk to the device, and when 
> it can not, it hands it off to the full speed hub (v1.10)?

USB starts off with version 1, at the slowest speed (the lowest common
denominator), then sees if it can shift up speeds and to using version
2.  This appears as the host device changing from 1 to 2, not just the
thing plugged into it.

-- 
[tim at localhost ~]$ uname -r
2.6.25.11-97.fc9.i686

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