On Mon, May 17, 2010 at 09:45:49AM -1000, Philip Tait wrote: > On Thu, May 13, 2010 at 10:09, Greg KH <greg@xxxxxxxxx> wrote: > > On Thu, May 13, 2010 at 10:03:46AM -1000, Philip Tait wrote: > >> On Thu, May 13, 2010 at 09:53, Greg KH <greg@xxxxxxxxx> wrote: > >> > On Thu, May 13, 2010 at 09:35:09AM -1000, Philip Tait wrote: > >> >> Bus 001 Device 005: ID 04b4:6560 Cypress Semiconductor Corp. CY7C65640 > >> >> USB-2.0 "TetraHub" > >> > > >> > Ah, so you are plugging it into a USB hub. ?Try not doing that and see > >> > if it solves the problem. ?We had some issues with slow (1.1) speed > >> > devices behind a 2.0 hub. > >> > >> That could be tricky - the hub is integrated on to the motherboard! > > I obtained a PCI to USB2.0 adapter: > > 09:02.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 > Controller (rev 61) > 09:02.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 > Controller (rev 61) > 09:02.2 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 63) > 09:02.3 FireWire (IEEE 1394): VIA Technologies, Inc. VT6306/7/8 [Fire > II(M)] IEEE 1394 OHCI Controller (rev 46) > > and plugged the Edgeport unit into that. Still the exact same problem, > so it doesn't seem to be a hub issue, correct? Correct :( > I tried unloading ehci_hcd, then modprobe-ing io_ti, but with the same > result (-EINVAL). So even just using an ohci (or uhci) controller fails here? But other hardware works? Very wierd. Given the age, and uncertainly of what exactly is in your kernel version, I really don't know what to suggest sorry. Can you try running a kernel.org 2.6.34 kernel and see if the issue is still there? good luck, greg k-h -- 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