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Re: Serial Port IRQ woes

daemon@ATHENA.MIT.EDU (Sean Christopher Farley)
Tue Jul 30 15:54:07 1996

Date: 	Tue, 30 Jul 1996 12:43:21 -0500 (EST)
From: Sean Christopher Farley <farleysc@cs.purdue.edu>
To: "Mark F. Burgo" <mfburgo@lrkimball.com>
cc: List Data <lists@bagel.gen.nz>,
        submit-linux-dev-net@ratatosk.yggdrasil.com
In-Reply-To: <199607301325.JAA06850@lrklinux.lrkimball.com>

On Tue, 30 Jul 1996, Mark F. Burgo wrote:

> > Date:          Thu, 25 Jul 1996 12:35:56 +1200 (NZST)
> > From:          List Data <lists@bagel.gen.nz>
> > To:            submit-linux-dev-net@ratatosk.yggdrasil.com
> > Subject:       Serial Port IRQ woes
> 
> > Hi
> > 
> > I don't know if this is in the right area - if not, sorry.
> > 
> > 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).
> > 
> > Any ideas to get Linux to recognize the modem ??
> > 
> > Thanks,
> > David (davidgo@kcbbs.gen.nz)
> > 
> > 
> > 
> I was able to configure my Sportster by editing the serial.c source 
> for the kernel and modifing the interrupt.  After re-compiling the 
> kernel all worked well.  However, you need to remember to due this 
> for any kernel upgrades you perform.....
> 
> mark

Have you tried this?  I use this successfully with an Intel 14.4i. 
	
	setserial /dev/cua3 irq 5 autoconfig

Sean
------
Sean C. Farley
scf@cs.purdue.edu
PGP 2.6.2 key using finger or WWW
WWW Homepage is:  http://www.cs.purdue.edu/people/farleysc



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