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Date:      Fri, 15 Sep 2000 01:02:19 +0100
From:      Mark Ovens <marko@freebsd.org>
To:        Antoine Beaupre <beaupran@IRO.UMontreal.CA>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: PnP modem not recognized at boot, but by pnpinfo(8)
Message-ID:  <20000915010219.E272@parish>
In-Reply-To: <Pine.LNX.4.21.0009141945440.6927-100000@phobos.IRO.UMontreal.CA>; from beaupran@IRO.UMontreal.CA on Thu, Sep 14, 2000 at 07:55:31PM -0400
References:  <20000915000911.B272@parish> <Pine.LNX.4.21.0009141945440.6927-100000@phobos.IRO.UMontreal.CA>

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On Thu, Sep 14, 2000 at 07:55:31PM -0400, Antoine Beaupre wrote:
> On Fri, 15 Sep 2000, Mark Ovens wrote:
> 
> > On Thu, Sep 14, 2000 at 04:35:01PM -0400, Antoine Beaupre wrote:
> > > On Thu, 14 Sep 2000, Mark Ovens wrote:
> > > 
> > > > On Thu, Sep 14, 2000 at 12:15:02PM -0400, Antoine Beaupre wrote:
> [...]
> > > > > Extract from dmesg output:
> > > > > 
> > > > > sio2: configured irq 5 not in bitmap of probed irqs 0
> > > > > [...]
> > > > 
> > > > Is sio2 in your kernel config file? 
> > > 
> > > Yes.
> > > 
> > > > If so, try commenting it out and re-building your kernel. 
> > > 
> > > Tried it. Not working:
> > > 
> > > sio1 at port 0x2f8-0x2ff irq 3 on isa0
> > > sio1: type 16550A
> > > [...no sio2...]
> > > unknown: <CIRRUS LOGIC PnP V34 MODEM> can't assign resources
> > > 
> > > > The message above means, IIRC, that your modem is using IRQ5 but the sio
> > > > probe is using another IRQ for that port.
> > > 
> > > Weird. What IRQ would the probe use then??? It is more likely to be the
> > > opposite. The modem being on irq 10 and the probe trying irq 5... I will
> > > try to setup a kernel with sio on irq 10. (?)
> > 
> > Maybe that is it; I got it the wrong way round. Looking at GENERIC the
> > IRQ probed for by sio2 is IRQ5 so I guess that it is probing for IRQ5
> > when the modem is using another IRQ (disclaimer: I did say "IIRC" in
> > my original message, obviously I didn't RC :) )
> > 
> > It would be worth trying IRQ10 (anyone know if you can omit the ``IRQ
> > X'' from the line in the config file, or use ``IRQ ?'' instead?).
> 
> I don't think so. But I might be able to fiddle with it in the boot-up
> userconfig... I'll try that. 
> 
> The big problem is that the 'pnp' userconfig command is gone. So I don't
> know on which irq the modem is setup. In 2.x and 3.x, I could setup the
> irq and port settings and then setup the sio2 probe appropriatly, but now,
> I'm out of resources...
>  
> > The only other thing is: It's not a bloody Winmodem is it?
> 
> :) It shouldn't. I mean, I used it as a non-winmodem for a good while on
> FBSD and it worked, that should be proof enough. How can I tell?
>  

The fact that it worked on previous versions of FreeBSD proves it
isn't a Winmodem.

> > One other point: Don't take too much notice of what IRQ and address
> > Windows uses, it changes things to suit itself, and I believe it can
> > update the BIOS settings to use it's (Windows) choice of settings for
> > future reboots. This modem of mine used to be on IRQ11 until I had to
> > re-install Win95 (although FreeBSD still found it without any
> > changes).
> 
> Yeah... It can do some pretty weird stuff. One time, it started "detecting
> new hardware" but detected that stuff like... er... "Main board" and
> "Central processing Unit" were _removed_. Ah! It removed all the drivers
> for all the devices I had on my machine. Quite funny. 

I once ended up with 5 serial ports in Device Manager :-/

> 
> Reinstall. :)

The joy of Windows :)

>  
> > > Latest dmesg (25th build! :):
> > 
> > You are now appointed as our resident kernel building expert :)
> 
> yay!
> 
> I'll try to probe different IRQs from userconfig and see what it gives...
> 

Let me know how you get on.

> A.
> 
> Si l'image donne l'illusion de savoir
> C'est que l'adage pretend que pour croire,
> L'important ne serait que de voir
> 
> Lofofora
> 
> 
> 
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