My USB2.0 cameras are enumerated fine on ehci systems. But not on my new Ubuntu 12.10: $uname -a Linux VAIO 3.5.0-18-generic #29-Ubuntu SMP Fri Oct 19 10:26:51 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux here xhci_hcd is compiled in the kernel, and the device is not enumerated. I tried unbinding xhci using the sysfs and the messages dissapear, but ehci does not take over. Any idea? [12241.536789] usb 3-1: new high-speed USB device number 8 using xhci_hcd [12241.553375] usb 3-1: device descriptor read/8, error -75 [12241.673302] usb 3-1: device descriptor read/8, error -75 [12241.888420] usb 3-1: new high-speed USB device number 9 using xhci_hcd [12241.905029] usb 3-1: device descriptor read/8, error -75 [12242.024764] usb 3-1: device descriptor read/8, error -75 [12242.240032] usb 3-1: new high-speed USB device number 10 using xhci_hcd [12242.256595] usb 3-1: device descriptor read/8, error -75 [12242.376524] usb 3-1: device descriptor read/8, error -75 [12242.591580] usb 3-1: new high-speed USB device number 11 using xhci_hcd [12242.608170] usb 3-1: device descriptor read/8, error -75 [12242.727987] usb 3-1: device descriptor read/8, error -75 [12242.831348] hub 3-0:1.0: unable to enumerate USB device on port 1 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
