https://manpages.ubuntu.com/manpages/stonking/man9/hdlcdrv.9.html
Ubuntu Manpage: hdlcdrv - HDLC amateur (AX.25) packet radio network driver
HDLC amateur (AX.25) packet radio network driver
packet radioubuntumanpagehdlcamateur
https://manpages.ubuntu.com/manpages/questing/man9/hdlcdrv.9.html
Ubuntu Manpage: hdlcdrv - HDLC amateur (AX.25) packet radio network driver
HDLC amateur (AX.25) packet radio network driver
packet radioubuntumanpagehdlcamateur