USB 3.0 external HDD does not work

[Hans Petter Selasky]

On Friday 08 April 2011 19:42:50 Lars Engels wrote:
> I just bought a shiny new external 2.5" USB 3.0 HDD (Samsung Portable 3.0).
> However on my notebook with USB 2.0 it does not work. dmesg output after
> inserting it:
> 
> usb_alloc_device: set address 2 failed (USB_ERR_STALLED, ignored)
> usbd_setup_device_desc: getting device descriptor at addr 2 failed,
> USB_ERR_STALLED usbd_req_re_enumerate: addr=2, set address failed!
> (USB_ERR_STALLED, ignored) usbd_setup_device_desc: getting device
> descriptor at addr 2 failed, USB_ERR_STALLED usbd_req_re_enumerate:
> addr=2, set address failed! (USB_ERR_STALLED, ignored)
> usbd_setup_device_desc: getting device descriptor at addr 2 failed,
> USB_ERR_STALLED ugen4.2: <Unknown> at usbus4 (disconnected)
> uhub_reattach_port: could not allocate new device
> usb_alloc_device: set address 2 failed (USB_ERR_STALLED, ignored)
> usbd_setup_device_desc: getting device descriptor at addr 2 failed,
> USB_ERR_STALLED usbd_req_re_enumerate: addr=2, set address failed!
> (USB_ERR_STALLED, ignored) usbd_setup_device_desc: getting device
> descriptor at addr 2 failed, USB_ERR_STALLED usbd_req_re_enumerate:
> addr=2, set address failed! (USB_ERR_STALLED, ignored)
> usbd_setup_device_desc: getting device descriptor at addr 2 failed,
> USB_ERR_STALLED ugen4.2: <Unknown> at usbus4 (disconnected)
> uhub_reattach_port: could not allocate new device
> 
> 
> The notebook is running CURRENT (r220370).
> I also tried all other USB ports, all don't work.

Did you give the drive external power?

--HPS