Just to clear things up (hopefully) the behaviour described above is only for the first time, when I boot the system. Once I load the modules in the order specified above, I always get the interference even if I unload them all and reload them NOT in that order - what I mean is once the damage is done, its irreversible - I can't use both at the same time. I'm really sorry for the mess that this bug report is - not only it is driving me nuts, but also really hard to pin down in which circumstances things happen. -- 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