ttyS0 keep closing

[neodertal]

Here is my problem.
If I try to access my device with a the usb serial console I keep getting disconected after 2 seconds.

I had just enough time to note itss IP address so I logged in with SSH.
In SSH everything is working fine.


I get those message for the serial problem.

$this->bbcode_second_pass_quote('', '[')root@alarmcubox ttyS0]# tail /var/log/errors.log
May 5 15:24:27 alarmcubox agetty[219]: /dev/ttyS0: not a character device
May 5 15:26:59 alarmcubox agetty[232]: /dev/ttyS0: not a character device
May 5 15:27:09 alarmcubox agetty[237]: ttyS0: tcgetattr: Input/output error
May 5 15:27:19 alarmcubox agetty[240]: ttyS0: tcgetattr: Input/output error
May 5 15:27:29 alarmcubox agetty[243]: ttyS0: tcgetattr: Input/output error
May 5 15:27:39 alarmcubox agetty[245]: /dev/ttyS0: not a character device
May 5 15:27:49 alarmcubox agetty[247]: /dev/ttyS0: not a character device
May 5 15:27:59 alarmcubox agetty[249]: /dev/ttyS0: not a character device
May 5 15:28:09 alarmcubox agetty[251]: ttyS0: tcgetattr: Input/output error
May 5 15:28:19 alarmcubox agetty[252]: ttyS0: input overrun

[WarheadsSE]

What the hell did you do to that device that you are in it as a directory?

That might tell you.