>> 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 On Wed, Feb 2, 2011 at 3:14 PM, Joshua Scoggins <theoretically.x64@xxxxxxxxx> wrote: > Currently, I'm running 2.6.37. I don't have an issue compiling > 2.6.38-rc3 actually. > > Josh > > On Wed, Feb 2, 2011 at 2:54 PM, Greg KH <greg@xxxxxxxxx> wrote: >> On Wed, Feb 02, 2011 at 02:36:49PM -0800, Joshua Scoggins wrote: >>> Hello, >>> >>> Two months ago I purchased a USB 3.0 card for my computer and it >>> worked amazingly well with Linux right out of the box. I got >>> tired of having to reach behind my computer to switch cables so I >>> purchased a USB 3.0 hub last week >> >> 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...) >> >>> and while Linux detects the >>> hub and knows its a SuperSpeed device it is automatically downgraded >>> to USB 2.0 speeds. I checked the dmesg >>> log and it said the following: >>> >>> "usb 2-1: new SuperSpeed USB device using xhci_hcd and address 2" >>> <more messages> >>> "hub 2-1:1.0: config failed, can't read hub descriptor (err -22)" >>> >>> The interesting part is that the transfer rate of all three of my USB >>> 3.0 HDD enclosures in this mode is about 30-40 megabytes per second. >>> If I plug the device into the ports on the back of the computer >>> directly I get 80-125 megabytes per second so I know it's an issue >>> with the hub. >>> I even double checked that I didn't get scammed using Kinfocenter and >>> it said that it was a USB 3.0 hub with a VIA chipset with a USB 2.0 >>> hub >>> subdevice. >>> >>> My question is am I doing something wrong or is this a bug? >> >> What kernel version are you using? Can you try 2.6.38-rc3 to see if >> your hub works with that release? >> >> thanks, >> >> 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
