On 12.04.19 18:00, Arnaud Pouliquen wrote: Hi folks, <snip> Haven't followed the whole thread, but I've got the impression that the device is emulating an uart - if that's the case wouldn't it be better to implement a serial driver, instead of tty directly (which IMHO should make it also usable for serbus-based devices) ? --mtx -- Enrico Weigelt, metux IT consult Free software and Linux embedded engineering info@xxxxxxxxx -- +49-151-27565287