Я не вижу адаптеры Wi-Fi в своей Ubuntu

Estoy leyendo el manual de minicom (man minicom), encontré este párrafo:

Serial port setup
     A - Serial device
          /dev/tty1 or /dev/ttyS1 for most people.  /dev/cua<n> is still possible under linux, but not recommended any more because these devices are obsolete and
          many  newly  installed  systems with kernel 2.2.x or newer don't have them.  Use /dev/ttyS<n> instead.  You may also have /dev/modem as a symlink to the
          real device.
          If you have modems connected to two or more serial ports, you may specify all of them here in a list separated by space, comma or semicolon. When  Mini‐
          com  starts,  it  checks  the  list until it finds an available modem and uses that one. (However, you can't specify different init strings to them..at
          least not yet.)
          To use a UNIX socket for communication the device name must be prefixed with "unix#" following by the full path and the filename of the socket.  Minicom
          will  then  try  to  connect to this socket as a client. As long as it cannot connect to the socket it stays 'offline'. As soon as the connection estab‐
          lishes, minicom goes 'online'. If the server closes the socket, minicom switches to 'offline' again.

Entonces, creo que el estado en línea/fuera de línea se usa solo con sockets UNIX. Nunca usé esto, pero hice algunas aplicaciones con USB y DB9 y todas funcionaron con el indicador "fuera de línea". Si su comunicación no funciona, verifique que la tasa de baudios y la paridad sean correctas.