Subject: Re: more ISAPnP modem weirdness
To: Chris Jones <cjones@rupert.honors.montana.edu>
From: Manuel Bouyer <bouyer@antioche.lip6.fr>
List: netbsd-help
Date: 07/01/1999 10:56:16
On Wed, Jun 30, 1999 at 09:33:32PM -0600, Chris Jones wrote:
> Okay, a little bit more info:
> 
> The modem, when it's in ISAPnP mode, is seen by Windows on IRQ 10.
> NetBSD sees it on IRQ 4.  But at that point, IRQ 4 is already assigned
> to com0, the built-in serial port.  This doesn't change, regardless of
> whether I assign IRQ 4 to legacy ISA, and regardless of whether I
> enable "PnP OS."
> 
> NetBSD's just reading the IRQ assignment from the BIOS, right?  But it
> sure doesn't seem like the BIOS is assigning 4 to the card.

No, it doesn't for isa pnp. This way you can put a isapnp board in
a machine even is the bios doesn't support it.

> 
> If I put the card on (DOS) COM1, and disable the on-board COM1, I get
> a panic "cannot share level-triggered with edge-triggered."

This is because the BIOS assigned com1's irq to a PCI device I think.
Try to assign irq4 to ISA device in the bios.

--
Manuel Bouyer, LIP6, Universite Paris VI.           Manuel.Bouyer@lip6.fr
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