# setserial > Read and modify serial port information. > More information: . - Print all information about a specific serial device: `setserial -a {{/dev/cuaN}}` - Print the configuration summary of a specific serial device (useful for printing during bootup process): `setserial -b {{device}}` - Set a specific configuration parameter to a device: `sudo setserial {{device}} {{parameter}}` - Print the configuration of a list of devices: `setserial -g {{device1 device2 ...}}`