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Old 12-20-2005, 05:12 PM   #1
Registered: Aug 2005
Location: Sheffield, UK
Distribution: Gentoo
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Which hole in the back of the computer corresponds to which /dev/tty* node?

Sorry if this is in the wrong place, and please bear with me as my skills in networking aren't too good and I'm a relative new beginner at Linux.

I'm attempting to connect a dumb terminal (the VT220 from DEC), through a "null modem cable" to the serial port. The serial port is located at the back of the computer, but directly on the motherboard. Now I thought I might add a getty to the init file to set up the terminal on each startup.

It's probably called COM1 or COM2 under MS-DOS. How do I know which node in /dev/ is the serial port?

Thanks for your time, and RSVP.
Old 12-20-2005, 05:50 PM   #2
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Ordinarily, the first serial port would correspond to /dev/ttyS0 (at least using udev under kernel 2.6, and devfs under kernel 2.4)
Old 12-21-2005, 05:22 AM   #3
Registered: Aug 2005
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I'm thinking I might test this by sending a byte to that port. What is the easiest way to do this?
Old 12-21-2005, 06:50 AM   #4
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You can use minicom

run it as root first an type
minicom -s
then create a configuration , save it and then launch minicom using this configuration
minicom conftty0


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