Am Monday 26 January 2009 12:21:18 schrieb Ed W: > dmesg > [5075781.727325] usb 6-2: new full speed USB device using uhci_hcd and > address 8 > [5075781.911917] usb 6-2: configuration #1 chosen from 1 choice > [5075781.915864] hci_usb: probe of 6-2:1.0 failed with error -5 > [5075781.915879] cdc_acm 6-2:1.0: ttyACM0: USB ACM device > > > Presumably this error -5 is relevant?? That is from hci_usb, the old bluetooth dongle driver. Why this probes your device I don't know, but it should work anyway. The cdc-acm driver can be compiled with extra debugging. It has the lines: #undef DEBUG #undef VERBOSE_DEBUG If you replace #undef with #define you get more debugging output. Regards Oliver -- 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