On Wed, Feb 02, 2011 at 03:26:14PM -0800, Greg KH wrote: > On Wed, Feb 02, 2011 at 03:16:44PM -0800, Joshua Scoggins wrote: > > >> You did? From where? What specific model is this? I didn't think that > > >> USB 3.0 hubs were on the market just yet (yes, I have one I found in > > >> Japan, but it doesn't really work all that well...) > > > > Oh didn't see this part. This is where I got it. It runs a VIA chipset it seems > > > > http://www.monoprice.com/products/product.asp?c_id=103&cp_id=10307&cs_id=1030702&p_id=6976&seq=1&format=2 > > Interesting, I hadn't seen this one before. > > Let us know how 2.6.38-rc3 works for you, there have been a number of > xhci patches in that release that should help with hubs. Greg, the USB 3.0 hub patches didn't make it into 2.6.38. The hub enumeration process should just fail because the USB core doesn't know to ask for the new USB 3.0 hub descriptor. I'm still working out the architecture of the USB 3.0 hub/split roothub patches with Alan Stern (although I haven't had time recently to do a rev of the patches based on his last suggestions). I have no idea why the USB 3.0 devices behind that hub would work at USB 3.0 speeds on 2.6.38 if we don't have USB 3.0 hub support. Joshua, are you sure of this? What do you consider USB 3.0 speeds? Typical speeds are in the 100-200 MB/s range, not the 25-40 MB/s range USB 2.0 provides. Sarah Sharp -- 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
