Jason White [email protected] Wrote:
I would suggest looking at the boot messages to confirm that the card and
the
serial ports on it are detected. If you have another serial device (not a
braille display), you should test writing output to the ports, e.g., echo
some
text > /dev/ttyS0 (try several of the serial devices until you find the one
that matches the port).
Okay, here's what I did.
root@coffee-bean:~# dmesg | grep tty
[ 73.750291] usb 3-3: Keyspan 1 port adapter converter now attached to
ttyUSB0
No reference to my serial card there at all. However it is still listed
under /dev, like so
root@coffee-bean:~# ls -l /dev | grep ttyS
crw-rw---T 1 root dialout 4, 64 Jun 24 21:49 ttyS0
crw-rw---T 1 root dialout 4, 65 Jun 24 21:49 ttyS1
crw-rw---T 1 root dialout 4, 66 Jun 24 21:49 ttyS2
crw-rw---T 1 root dialout 4, 67 Jun 24 21:49 ttyS3
And if I do this:
root@coffee-bean:~# setserial -g /dev/ttyS0
/dev/ttyS0, UART: unknown, Port: 0x03f8, IRQ: 4
root@coffee-bean:~# setserial -g /dev/ttyS1
/dev/ttyS1, UART: unknown, Port: 0x02f8, IRQ: 3
root@coffee-bean:~# setserial -g /dev/ttyS2
/dev/ttyS2, UART: unknown, Port: 0x03e8, IRQ: 4
root@coffee-bean:~# setserial -g /dev/ttyS3
/dev/ttyS3, UART: unknown, Port: 0x02e8, IRQ: 3
Unfortunately, I don't know which manufacturer this card is from. I found it
in a box of misc stuff and I don't remember where I bought it from to check
order history. What else can I look at?
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