On Wed, 18 Nov 2009, Rickard Bellini wrote: > > Hi, > > The following was performed with the root hub forced to "on". > The XactErr appears in the same place. Just after a remote wakeup signal from the device. > usbmon log attached. It won't be easy to find the cause. One experiment you can try is to add a delay immediately after the resume occurs. Try adding msleep(10); in hub.c:finish_port_resume() just before the line saying status = usb_get_status(udev, USB_RECIP_DEVICE, 0, &devstatus); Maybe the device doesn't like the Get-Status request coming so soon after the resume. Or maybe the EHCI controller doesn't like it. If errors still occur, try increasing the delay from 10 ms to 50 ms. If there are errors even then, the problem must lie somewhere else. Alan Stern -- 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
