Hi, I just proposed this MR in the socketcand repo to implement CAN configuration commands using libsocketcan to do it: https://github.com/linux-can/socketcand/pull/35 Currently, I am working in supporting also CANFD configuration (with bitrate and dbitrate) and I would like to propose a new configuration keyword for that configuration just in case you find it useful for future implementations. Similar to the current CAN configuration: < can0 B bitrate sample_point tq prop_seg phase_seg1 phase_seg2 sjw brp > We can use a parallel keyword for FD mode: < can0 F bitrate dbitrate sample_point tq prop_seg phase_seg1 phase_seg2 sjw brp > This is just a proposal I will implement internally for my project, but if you think it could be applicable for the mainstream, we can discuss about the format or alternative options. Regarding the implementation, I know libsocketcan doesn't support currently CAN-FD configuration, it is a thing should be rethough when we reach that point. BR, Jesus