On Tue, May 18, 2010 at 02:20:00AM +0000, darian wrote: > Hi, > I'm debugging a uasp driver under xhci kernel downloaded from: > > git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci.git Have you tried the 2.6.34 kernel instead? > Now, the device can get the "INQUIRY" command. But during the data stage, > the uasp driver submit the urb by "usb_fill_bulk_urb" and "usb_submit_urb" > after evaluating, it return the valid return value. The problem is : callback > function " urb->complete( )" can't be recalled. The driver > enter "command_abort" after 20 seconds. I trace the prepare_transfer in xhci- > driver, the uasp did pass the valid stream_id to it. Is there any advice to > locate the problem of xhci-hcd? What does the data show is happening? Perhaps your device really didn't send anything? Do you have a pointer to the source of your driver so we can verify you are setting everything up properly? What type of driver is this? > Besides, when I plug the USB3.0 device before insmod uasp driver??? the xhci- > hcd driver reponse the following info: Please try the 2.6.34 kernel 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