Can you use a USB3.0 hub?

From: Kohji Okuno <okuno.kohji_at_jp.panasonic.com>
Date: Thu, 12 Jan 2012 15:15:17 +0900 (JST)
Hi,

Can you use a USB3.0 hub?

I tried a USB3.0 hub (BUFFALO BSH4A04U3BK).
And I used 8-stable and PCI-E card (BUFFALO IFC-PCIE2U3)

The hub is for only japanese market.
The card is NECĒs 720200 chip
http://www.buffalotech.com/products/accessories/interface-card-adapters/usb-30-pci-express-interface-card/



The kernel could not recognize USB3.0 HDD that connected to this hub
as the following log. But, the kernel could reconize USB2.0 HDD that
connected to this hub.

Regards,
 Kohji Okuno

------------------ log ----------------
xhci0: <XHCI (generic) USB 3.0 controller> mem 0xf7ffe000-0xf7ffffff irq 28 at d
evice 0.0 on pci1
xhci0: [ITHREAD]
xhci0: 32 byte context size.
usbus0 on xhci0
  ...

ugen0.2: <VIA Labs, Inc.> at usbus0
uhub11: <VIA Labs, Inc. 4-Port USB 3.0 Hub, class 9/0, rev 3.00/3.74, addr 1> on
 usbus0
uhub11: 4 ports with 4 removable, self powered
usb_alloc_device: set address 3 failed (USB_ERR_IOERROR, ignored)
usbd_req_re_enumerate: addr=3, set address failed! (USB_ERR_IOERROR, ignored)
usbd_req_re_enumerate: addr=3, set address failed! (USB_ERR_IOERROR, ignored)
ugen0.3: <Unknown> at usbus0 (disconnected)
uhub_reattach_port: could not allocate new device
uhub_reattach_port: device problem (USB_ERR_STALLED), disabling port 4
ugen0.3: <vendor 0x2109> at usbus0
uhub12: <vendor 0x2109 USB2.0 Hub, class 9/0, rev 2.00/2.74, addr 2> on usbus0
uhub12: 4 ports with 4 removable, self powered
usb_alloc_device: set address 4 failed (USB_ERR_IOERROR, ignored)
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_IOERROR, ignored)
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_IOERROR, ignored)
ugen0.4: <Unknown> at usbus0 (disconnected)
uhub_reattach_port: could not allocate new device
uhub_reattach_port: device problem (USB_ERR_STALLED), disabling port 4
usb_alloc_device: set address 4 failed (USB_ERR_IOERROR, ignored)
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_IOERROR, ignored)
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_IOERROR, ignored)
ugen0.4: <Unknown> at usbus0 (disconnected)
uhub_reattach_port: could not allocate new device
Received on Thu Jan 12 2012 - 05:15:22 UTC

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