Jose Colmenares wrote: > If the computer starts, and the IMU is already plugged in, I have > to unplug it and plug it again. This is unacceptable because the > IMU will be used in a robot, so we cannot just unplug it every time > the robot starts. In a prototype you could work around this problem with custom hardware to control VBUS in the IMU USB connection, which to the device looks like the cable has been disconnected. TI TPS20xxC power switches (e.g. TPS2051C and TPS2065C) are designed for USB, are frequently used in PCs, and work just fine. But please provide the debugging information already asked for in this thread, so that the software problem may be resolved for the future. Thanks //Peter -- 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