[3913] in linux-net channel archive
Re: Serial Port IRQ woes
daemon@ATHENA.MIT.EDU (Johnie Stafford)
Wed Jul 31 00:44:15 1996
Date: Tue, 30 Jul 96 23:38 CDT
To: tony@trishul.sci.gu.edu.au
CC: linux-net@vger.rutgers.edu
In-reply-to: <199607310027.KAA00207@sctnugen.ppp.gu.edu.au>
(tony@trishul.sci.gu.edu.au)
From: jms@pobox.com (Johnie Stafford)
Reply-To: jms@pobox.com
>>> On Wed, 31 Jul 1996 10:27:50 +1000, tony@trishul.sci.gu.edu.au said:
tony> Mark F. Burgo" <mfburgo@lrkimball.com> wrote:
>> > I need to get 2 modems working on 1 linux box. (I am using 1.2.13
>> > currently). I also need my mouse.
>> >
>> > I have a P100 with built in Com ports, and 1 internal modem.
>> > Mouse - /dev/cua0 = IRQ 4
>> > Modem 1 = External = /dev/cua1 = IRQ 3
>> > Modem 2 = Internal = /dev/cua3 = IRQ ?3
>> >
>> >
>> > The problem is getting the internal modem recognized on IRQ 5 or 7 -
>> > I have edited rc.serial, and changed the jumpers on the modem, but
>> > Linux refuses to talk to the modem on anything other then IRQ 3
>> > (though I did not try as the mouse needs it).
tony> Use the `setserial' program to inform the kernel of the new irq.
I found that if you are going to run a getty on the modem from the
inittab that you need to do the 'setserial' stuff as early as possible
in the init scripts before init spawns the getty.
Johnie
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Johnie Stafford | Internet E-mail: jms@pobox.com
KB5YVF - Lafayette, LA | Ham Radio Packet: kb5yvf@k5arh.#lftla.la.us.noam
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