On my hdu I have installed
opencpn with ubuntu - navigatrix.
ttyS0 must be on 4800 baud, ttyS1 on 57600 baud. But when I startup both are on 4800baud, when I change the baudrate in connections, nothing changes.
When I do : sudo stty -F /dev/ttyS1 57600 the baud rate is changed, but everytime when I resart I have to type that again.
How can I get this changes permanent ?