[Gllug] set serial port irq

[Jack Richards]

Though its not always acurate, try having a look at the dmesg output and see 
what the kernel autodetected at boot, before setserial was run, this might 
give you some ideas.

The values given look like the IBM XT spec for com1: and so should be correct.

However, I may have missed the beggining of this thread and so, I am a little 
confused as to why the cable would have to be plugged in for the port to be 
initialised and activated.....

Sorry fo my ignorance.

Jack


Quoting Ben Fitzgerald <ben_m_f at yahoo.co.uk>:

> Hi
> 
> I've got a serial port I want to connect to
> another box over a null modem cable.
> 
> I connected the cable to both and rebooted the
> "other" box, and it's picked up the use of the
> serial port and allocated an irq under /proc/interrupts.
> 
> On the main box there's nothing for the serial port
> under /proc/interrupts as the cable wasn't plugged
> in at last reboot.
> 
> Before I reboot the main box (which I'd rather not do),
> does anyone know if I can set this another way?
> 
> The driver has already set itself to IRQ 4:
> 
> $ setserial
> /dev/ttyS0, Line 0, UART: 16550A, Port: 0x03f8, IRQ: 4
>         Baud_base: 115200, close_delay: 50, divisor: 0
>         closing_wait: 3000
>         Flags: spd_normal skip_test
> 
> I believe I can't now check what the bios gave it, but
> that I can hope setserial is correct!
> 
> Thanks in advance,
> 
> Ben
> -- 
> Gllug mailing list  -  Gllug at gllug.org.uk
> http://lists.gllug.org.uk/mailman/listinfo/gllug
> 


Jack Richards

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