Very Computer

I am by no means a serial port amateur, but this has me stumped:

I am testing out an old system to be used as my 'net gateway (nat).
Redhat 6.0 on a k6-200, 14.4k/16450 UART at 0x3f8/IRQ4 (I'll put a 56k on it
when I get this to work.)
Kernel comes up, dmesg says that ttyS00 was found at 0x3f8/int 4.
setserial -a /dev/ttyS0 acknowledges that.

(Sidebar: why does the kernel say ttyS00 when MAKDEV won't allow for a
device named ttyS00 ?)

cat /proc/interrupt shows me that IRQ4 was taken by a serial port.

minicom (config'd with /dev/ttyS0) as device doesn't seem to communicate
with the modem. It's not an echo problem, I can't get it to off/on hook,
dial, exit command mode, etc. Nothing is happening. I've tried 2 different
old 14.4's.
Nada.

I was going to try a 56k out of another box, but I don't feel like that can
be the problem. All I can think of is that I am missing something, but
nothing in the FAQ's ro HOWTO's are offering any hints...

Anyone have ideas?

Regards,
-Pete

Hi,

is it an internal modem?  Have you tried setserial /dev/ttyS0 auto_irq
autoconfig skip_test spd_vhi ?

Quote:> Hello all,

> I am by no means a serial port amateur, but this has me stumped:

> I am testing out an old system to be used as my 'net gateway (nat).
> Redhat 6.0 on a k6-200, 14.4k/16450 UART at 0x3f8/IRQ4 (I'll put a 56k on it
> when I get this to work.)
> Kernel comes up, dmesg says that ttyS00 was found at 0x3f8/int 4.
> setserial -a /dev/ttyS0 acknowledges that.

> (Sidebar: why does the kernel say ttyS00 when MAKDEV won't allow for a
> device named ttyS00 ?)

> cat /proc/interrupt shows me that IRQ4 was taken by a serial port.

> minicom (config'd with /dev/ttyS0) as device doesn't seem to communicate
> with the modem. It's not an echo problem, I can't get it to off/on hook,
> dial, exit command mode, etc. Nothing is happening. I've tried 2 different
> old 14.4's.
> Nada.

> I was going to try a 56k out of another box, but I don't feel like that can
> be the problem. All I can think of is that I am missing something, but
> nothing in the FAQ's ro HOWTO's are offering any hints...

> Anyone have ideas?

> Regards,
> -Pete

Was that an oversight in RedHat 6.0, or did I install something incorrectly?

Thanks for all the tips everyone!
-Pete

Hi,
is it an internal modem?  Have you tried setserial /dev/ttyS0 auto_irq
autoconfig skip_test spd_vhi ?
Hello all,

I am by no means a serial port amateur, but this has me stumped:

I am testing out an old system to be used as my 'net gateway (nat).
Redhat 6.0 on a k6-200, 14.4k/16450 UART at 0x3f8/IRQ4 (I'll put a 56k on it
when I get this to work.)
Kernel comes up, dmesg says that ttyS00 was found at 0x3f8/int 4.
setserial -a /dev/ttyS0 acknowledges that.

(Sidebar: why does the kernel say ttyS00 when MAKDEV won't allow for a
device named ttyS00 ?)

cat /proc/interrupt shows me that IRQ4 was taken by a serial port.

minicom (config'd with /dev/ttyS0) as device doesn't seem to communicate
with the modem. It's not an echo problem, I can't get it to off/on hook,
dial, exit command mode, etc. Nothing is happening. I've tried 2 different
old 14.4's.
Nada.

I was going to try a 56k out of another box, but I don't feel like that can
be the problem. All I can think of is that I am missing something, but
nothing in the FAQ's ro HOWTO's are offering any hints...

Anyone have ideas?

Regards,
-Pete

Michael Rogers

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