On Wed, 8 May 2013 Curtis.Wyatt@xxxxxxxxx wrote: > I have a USB 2.0 device (wifi card) that is not detected when I plug it > into a 3.0 port. It does not show up in /dev/bus/usb. This is an FC16 > kernel(linux-3.3), and we have tested that it works in FC18 (linux-3.5) > just fine. I cannot at this point switch out the whole kernel. I was > hoping that you could help me narrow down some specific patches that I > could back port to fix this. The most obvious answer is to apply all the patches that touch the xhci-hcd driver. Alan Stern -- 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