I'm currently using the following command. It reads from serial ttyUSB0 in local machine, and bidirectionally connects to ssh, through two tee commands for logging. On the remote end, socat connects stdio to the remote ttyUSB0:
stty -F /dev/ttyUSB0 raw 3000000 ssh [email protected] stty -F /dev/ttyUSB0 raw 3000000 socat /dev/ttyUSB0,raw,echo=0 SYSTEM:'"tee -a log_l2r | ssh [email protected] socat - /dev/ttyUSB0,raw,echo=0 | tee -a log_r2l"',pty,echo=0
I want to make sure buffering does not spoil the realtime communication between two robot controllers. Line buffering is ok, but nothing more.
There is many connections in the above command and I'm unsure about potential buffered pipes/sockets. Could you help me spot them?
Also I need to remove any translation or echo (I believe
stty ... raw ...already does this).
Is there some other preferred approach to solving this communication problem? i.e. other command?
Running Debian GNU/Linux - Ubuntu