Problem installing serial multi I/O card

[nick048]

Hi,

On a Dell Serverl PowerEdge T100, I have installed Red Hat Enterprise
Linux 5.4, because I must create a FaxServer with 4 external analogue
modems 56k.

I have also installed a serial card Multi I/O, guaranteed by the
producer full compatible with the kernel 2.6.x

Following the instructions supplied by manifacturer, as superuser I
have in the terminal entered the command:

lspci -v and this is the output:

****** abstract *********
05:00.0 Serial controller: Oxford Semiconductor Ltd
OX16PCI954 (Quad 16950 UART) function 0 (Uart) (prog-if 06
[16950])
Subsystem: Oxford Semiconductor Ltd Unknown device 0000
Flags: medium devsel, IRQ 11
I/O ports at e880 [size=32]
Memory at dffec000 (32-bit, non-prefetchable) [size=4K]
I/O ports at e8a0 [size=32]
Memory at dffed000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [40] Power Management version 1

05:00.1 Bridge: Oxford Semiconductor Ltd OX16PCI954 (Quad
16950 UART) function 1 (8bit bus)
Subsystem: Oxford Semiconductor Ltd Unknown device 0000
Flags: medium devsel, IRQ 10
I/O ports at e8c0 [size=32]
Memory at dffee000 (32-bit, non-prefetchable) [size=4K]
I/O ports at e8e0 [size=32]
Memory at dffef000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [40] Power Management version 1
****** continue ********

I assume, therefore, that the card is properly detected; but I do not
found the file /proc/tty/driver/serial, that according with the
supplied instructions of manifacturer would have an output like this:

more /proc/tty/driver/serial
serinfo:1.0 driver revision:
****************************
4: uart: 16C950/954 port:0000C400 irq:9 tx:0 rx:0
5: uart: 16C950/954 port:0000C408 irq:9 tx:0 rx:0
6: uart: 16C950/954 port:0000C410 irq:9 tx:0 rx:0
7: uart: 16C950/954 port:0000C418 irq:9 tx:0 rx:0

Listed as UART 4-7 are the serial ports and are assigned as ttyS4-
ttyS7.

I try to create the devices with the commands MAKEDEV or mknod and
then I use the command setserial; for setserial this is the output
(the ttyS4 is in the dev directory)

/dev/ttyS4: No such device or address

If I reboot this device is deleted.

Can anyone help me ?

Thank in advance
Gaetano

[C. (http://symcbean.blogspot.com/)]

On Nov 3, 2:53 pm, nick048 <nicosia.gaet...@moonsoft.it> wrote:
> Hi,
>
> On a Dell Serverl PowerEdge T100, I have installed Red Hat Enterprise
> Linux 5.4, because I must create a FaxServer with 4 external analogue
> modems 56k.
>

<snip>

> I try to create the devices with the commands MAKEDEV or mknod and
> then I use the command setserial; for setserial this is the output
> (the ttyS4 is in the dev directory)
>
> /dev/ttyS4: No such device or address
>
> If I reboot this device is deleted.

http://www.icewalkers.com/Linux/Howto/Serial-HOWTO-16.html#ss16.2

C.