From owner-freebsd-hackers  Thu Jul 11 14:27:17 1996
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Date: 	Thu, 11 Jul 1996 14:38:12 -0700 (PDT)
From: Tom Samplonius <tom@sdf.com>
To: Thomas Graichen <graichen@axp5.physik.fu-berlin.de>
cc: hackers@freebsd.org
Subject: Re: sio / modem problems
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On Thu, 11 Jul 1996, Thomas Graichen wrote:

> can any sio guru please help me ?
> 
> i have an internal creatix phone-master modem - which will be detected in
> FreeBSD 2.0.5 but not in the 2.1.0 RELEASE or the march 2.2 snap - it's
> configured for irq 2 and comport 4 (2e8) - i tried to hack the sioprobe

  You shouldn't put devices on irq 2, as it is used to cascade irqs 8
through 15

  irq is only safe on a XT, which has only one irq controller.

Tom