On Mon, Oct 24, 2011 at 10:40:47PM +1100, Matt wrote: > Hi, > > I've been trying to setup some recently-acquired hardware and > encountered what I perceive to be possible bugs in the xHCI code. > > Specifically, I've got a Shuttle SH51R4, which utilises an ASMedia > ASM1042 chipset (seemingly xHCI compliant) and I'm trying to connect > a HotWay h82-su3s2 external drive chassis. Inside the chassis, I > have connected four Hitachi Deskstar 7k3000 drives. For > confirmation purposes, I have successfully used this setup in > Windows 7 and achieved well over 100MB/s transfer rates on a > per-drive basis. The config also works when plugged into a USB 2 > port in all Linux Kernel's I've tried. > > Without exception, I've experienced catastrophic failures using the > xHCI drivers in varying kernel versions. Under CentOS 6.0's > customised 2.6.32 kernel, Right there is probably your issue. 2.6.32 had only very rudimentary support for USB 3.0, given when that kernel was released there was no USB 3.0 hardware really around. Please try to duplicate this on the 3.1 kernel and we will be glad to help you out, otherwise I wouldn't really recommend you using that kernel for USB 3.0 stuff at all. 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
