On Thu, 2015-11-12 at 10:12 +0100, Johan Hovold wrote: > What exactly do you mean by "not work"? Does the driver fail to probe? > Or is it just that your user-space tool expects the tty devices to be > named ttyUSBn rather than ttyACMn (in which case the tool needs to be > fixed)? Hi, actually the cdc-acm driver contains some baggage for status inquiries, the parsing of the extra headers and other stuff. If you really just need a serial link, cdc-acm is not a good choice. 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