Date: Sun, 5 Mar 2000 17:04:17 +0000 From: Mark Ovens <mark@ukug.uk.freebsd.org> To: Peter Wemm <peter@netplex.com.au> Cc: Doug Rabson <dfr@nlsystems.com>, questions@freebsd.org, current@freebsd.org Subject: Re: Modem no longer found after u/g to 4.0-current - help Message-ID: <20000305170417.G388@parish> In-Reply-To: <20000305165750.47A711CD7@overcee.netplex.com.au>; from peter@netplex.com.au on Mon, Mar 06, 2000 at 12:57:50AM %2B0800 References: <mark@ukug.uk.freebsd.org> <20000305165750.47A711CD7@overcee.netplex.com.au>
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On Mon, Mar 06, 2000 at 12:57:50AM +0800, Peter Wemm wrote:
> Mark Ovens wrote:
> > On Sun, Mar 05, 2000 at 04:04:59PM +0000, Doug Rabson wrote:
> > > On Sun, 5 Mar 2000, Mark Ovens wrote:
> > >
> > > > On Sun, Mar 05, 2000 at 01:04:23PM +0000, Doug Rabson wrote:
> > > > > Could you send me the output of pnpinfo. I think we are missing a PnP I
> D
> > > > > in the sio driver.
> > > > >
> > > >
> > > > The line I've added to sio.c is:
> > > >
> > > >
> > > > {0x3024a341, NULL}, /* PMC2430 - Pace 56 Voice Internal Modem */
> > >
> > > Does the modem work with this addition? If so, I'll commit the change.
> > >
> >
> > Yes :)
> >
> > sio2: <Pace 56 Voice Internal Plug & Play Modem> at port 0x3e8-0x3ef irq 5 on
> isa0
> > sio2: type 16550A
>
> Heh, it's already committed. (oops! :-)
>
> > Why did it work before though, under 3.x, without this line in sio.c?
>
> The PNP bios preconfigured it and left it laying around in port space,
> so the old-style isa probes "found" it there.
>
> Under 4.0, the isa code is much more pnp centric. It was possible for an
> isa probe to find a "stray" device and then for the PNP device id to match
> and then fail due to resource conflicts. So, it disables the programmable
> cards first so this double probing cannot happen. It also means that it
> needs to know the PNP id's for supported pnp hardware. Making this more
> user tweakable is on the TODO list.
>
Thanks for the explanation.
> Cheers,
> -Peter
>
--
Microsoft: Where do you want to go today?
Linux: Where do you want to go tomorrow?
BSD: Are you guys coming, or what?
-Poster at LinuxWorld 2000
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