Eventually things just works if some effort is put into it. So now the CAN4VSCP serial driver is kind of working. The node code will be implemented on Arduino also as a sample to set up a serial channel to VSCP. For the Frankfurt RS-232 module the third working mode will now be added. The module has the verbose mode for debugging of CAN4VSCP buses, the CAN4VSCP driver mode for efficient driver communication and lastly the SLCAN mode so it also can be used as a Sockecan node. This means VSCP user can select if they want to use the CAN4VSCP driver or socketcan when they work with the Frankfurt RS-232 module.