Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> writes: > Maybe the same thing would have happened in 3.3, which didn't have the > new registration code. Can you test it? This is what happens in 3.3.7: May 29 20:51:40 nemi kernel: [ 97.008728] bus: 'usb': driver_probe_device: matched device 5-4:1.3 with driver usbserial_generic May 29 20:51:40 nemi kernel: [ 97.008735] bus: 'usb': really_probe: probing driver usbserial_generic with device 5-4:1.3 May 29 20:51:40 nemi kernel: [ 97.008761] usbserial_generic: probe of 5-4:1.3 rejects match -19 May 29 20:51:40 nemi kernel: [ 97.008773] bus: 'usb': driver_probe_device: matched device 5-4:1.3 with driver sierra May 29 20:51:40 nemi kernel: [ 97.008780] bus: 'usb': really_probe: probing driver sierra with device 5-4:1.3 May 29 20:51:40 nemi kernel: [ 97.008802] sierra 5-4:1.3: Sierra USB modem converter detected So the usbserial_generic driver is probed first there as well, but the probe fails and everything is fine. Bjørn -- 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