Hi Oliver, > btusb has some races in disconnect() > > - it doesn't deal with only the iso interface disconnected It see the point here, but then we have to release the main interface cleanly or just disable SCO. I would prefer to just disable SCO. > - it releases the data interface before unregistering the iso interface How does this happen? It doesn't do it that way. > - it isn't carefull to kill all URBs in case of soft disconnect The hci_unregister_dev will be calling the close() callback. Check hci_core.c and hci_dev_do_close(). Regards Marcel -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html