Hi, I have a full speed device, and insert it to a highspeed host, then run the usbmon just like Documentation/usb/usbmon.txt say. but I cannot capture any log with my device. if I config my device with high speed, I can capture the log well. so, does usbmon not support full speed device? Br, yingchun -- 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