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Date:      Thu, 8 Oct 1998 13:18:07 +0200
From:      Frank Nobis <fn@radio-do.de>
To:        Christoph Weber-Fahr <listmail@helena.callcenter.systemhaus.net>, Wolfgang Helbig <helbig@Informatik.BA-Stuttgart.DE>
Cc:        freebsd-isdn@FreeBSD.ORG
Subject:   Re: what's wrong with a1 and irq 2 ?
Message-ID:  <19981008131807.A2731@radio-do.de>
In-Reply-To: <199810080944.LAA29460@helena.otelo-call.de>; from Christoph Weber-Fahr on Thu, Oct 08, 1998 at 11:44:08AM %2B0200
References:  <199810080638.IAA00402@RVC1.Informatik.BA-Stuttgart.DE> <199810080944.LAA29460@helena.otelo-call.de>

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On Thu, Oct 08, 1998 at 11:44:08AM +0200, Christoph Weber-Fahr wrote:
> Hi,
> 
> (IRQ 2 is occupied by the second interrupt controller on an ISA system)
> 
> Yep. The 'cascade interrupt'; I'm well aware of this, but this 
> doesn't keep quite some periphery from using it. 
> 
> > IRQ 2 on the card's side is IRQ 9 on the processor's side.^
> 
> Does this mean the A1 should work with IRQ 9 despite it is jumpered
> for IRQ 2 ?

In theory, yes. But you have to take into account that on some systems IRQ9
is hardwired on some VGA adaptors. If you can take an other IRQ it's better
not using IRQ9.

-- 
 Frank Nobis                            Email: PGP AVAILABLE
 Landgrafenstr. 130                     dg3dcn   http://www.radio-do.de/~fn/
 44139 Dortmund				Powered by SMP FreeBSD


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