Hello Peter, one short remark > Application-specific or vendor-specific are often frowned upon in > other contexts but if the protocol is documented publically then it > is a great way to take advantage of all that USB offers, and it is > explicitly supported by the specification. Use bDeviceClass or > bInterfaceClass 0xff. Certainly we try to use only the CDC/ACM standard and not using any custom communication Best regards Andreas -- 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