please help serial card

jakjok · 07-10-2010, 05:08 PM

i have serial card 6s port on ubuntu 9.10
just three of it is work

i read about this and know just 4 serial port is work

i have serial port on motherboard and 6 port on serial card

and as i saying just three of it is work

Mknod /dev/ttyS4 C 4 68
but when i try
setserial /dev/ttyS4 uart 16550a

the result is:

/dev/ttyS4: No such file or directory

please help

wildwizard · 07-11-2010, 01:25 AM

What sort of serial card is it?

Helpful reading :-
http://tldp.org/HOWTO/Serial-HOWTO-6.html

onebuck · 07-11-2010, 08:15 AM

Hi,

Welcome to the LQ Slackware forum!

Quote:

Originally Posted by jakjok

i have serial card 6s port on ubuntu 9.10
just three of it is work

i read about this and know just 4 serial port is work

i have serial port on motherboard and 6 port on serial card

and as i saying just three of it is work

Mknod /dev/ttyS4 C 4 68
but when i try
setserial /dev/ttyS4 uart 16550a
the result is:

/dev/ttyS4: No such file or directory

please help

The tty assignment begins at '0' and the default for a 2.6 kernel is generally tty0-3 for 4 ports. If you look at Serial Port Basics & Names: ttyS0, ttyS1, etc. to get some basic background then Multiport Serial Boards/Cards/Adapters may make more sense.

'How to Ask Questions the Smart Way' would be one link you should look at to help us to help you in the future.

The above links and others can be found at 'Slackware-Links'. More than just Slackware® links!