On Thursday 10 January 2013 00:05:55 Laurent Pinchart wrote: > I've had a quick look at the trace posted at > https://bugzilla.redhat.com/show_bug.cgi?id=879462 but usbmon only shows URBs > that are successfully submitted. I'm not sure what useful information I could > get from the trace. The test is at the very start of usb_submit_urb() if (!urb || !urb->complete) return -EINVAL; if (urb->hcpriv) { WARN_ONCE(1, "URB %p submitted while active\n", urb); return -EBUSY; } usbmon will never see such URBs I suggest that for debugging you change the WARN_ONCE into a WARN and compare the URB pointers of usbmon and dmesg. In the long run it is probably a good idea to pass duplicated URBs to usbmon by a special code path. Regards Oliver -- 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
