USB: Add USB 3.0 roothub support to USB core.
Add USB 3.0 root hub descriptors. This is a kludge because I reused the old USB 2.0 descriptors, instead of using the new USB 3.0 hub descriptors with endpoint companion descriptors and other descriptors. I did this because I wasn't ready to add USB 3.0 hub changes to khubd. For now, a USB 3.0 roothub looks like a USB 2.0 roothub, with a higher speed. USB 3.0 hubs have no transaction translator (TT). Make USB core debugging handle super speed ports. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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