1
vote
1answer
29 views

Serial port's modem lights up, but can't communicate

My MB has builtin UARTs (Supermicro X10SAE). I've got an external modem hooked up to /dev/ttyS0. I'm running CentOS7. Without minicom running on /dev/ttyS0: The modem has CTS on. With minicom ...
2
votes
1answer
8k views

How to send AT commands to a modem in Linux?

In Linux (Ubuntu) I am trying to send AT commands to a modem at /dev/ttyACM0. I tried to do it as: sudo socat - /dev/ttyACM0 but when typing anything I just get a line repeating this command (I ...
1
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0answers
198 views

Where are the logs for the serial port (power save modes, specifically)

I'm running a system with Ubuntu 10.10 (pretty old, I know, but it has to be that one), with all its packages updated to the latest version supported (the distribution is not supported anymore so, to ...