On Tue, 27 Aug 2013, Kevin Archer wrote:
> rmmod xhci-hcd yields:
> libkmod: ERROR ../libkmod/libkmod-module.c:753
> kmod_module_remove_module: could not remove 'xhci_hcd': No such file
> or directory
> Error: could not remove module xhci-hcd: No such file or directory
Oops. Apparently the driver was not built as an unloadable module.
That's okay. You can get more or less the same effect by doing:
echo 0000:00:14.0 >/sys/bus/pci/drivers/xhci-hcd/unbind
This will prevent the Logitech trackball from working, but that's okay
for a short test. After the test, you can return to normal operation
by issuing the same command with "bind" in place of "unbind".
> as far as the 2.6.39 version
> I attached dmesg and udev - I was using a usb thumb drive and an
> aluratek usb bluetooth receiver to test with
Yes, good, that all looks normal.
There's one more thing to try (maybe I asked this earlier). Back in a
3.1 kernel (a later version, like 3.10, would be better), while a
device is plugged in and there's no response, run these two commands:
lsusb -v -s 1:2
lsusb -v -s 2:2
as root and let's see what you get.
Alan Stern
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