Re: modem config.............

[Damion Yates <nospam [at] rd.bbc.co.uk>]

On Mon, 1 Nov 1999, Ross wrote:

> it's definitely an ISA card on com2 windows states it's modulation type as
> 'STANDARD' it's interrupt is 3 address is 2F8 and URT is NS16550AN
>
> LINUX does not use IRQ 3 so I'm assuming the PNP system hasn't picked it
> up. I've tried to run kppp with a standard fresh install of rh6.0 and also
> after compiling the new 2.2.13 kernel with as many relevant parts compiled
> in, on both occasions it reports that the modem is busy!

I don't know that much about these new fangled easy to install and use
distributions as I'm a slackware man, but as I understand it isapnp does NOT
work automatically. You have to configure it yourself, and this normally
involves a warmboot in to linux and the running of pnpdump, then some
configuration of the resulting conf file.

It's not _too_ bad especially if you're reading through the HOWTO's and FAQ's
which are normally clear and easy to read. I suspect that when you boot to
Linux your modem if PnP hasn't a clue what IRQ you want it to be on and so
doesn't work.

> I've played around with the initialisation string and initialisation
> delay's device location (e.g. /dev/ttys0 ...etc) all with no joy.
>
> i hope this is enough information for a few of you, at least, to agree some
> common ground on this subject.

If the others agree that it's a isapnp config job then we can make a start at
walking you through that, it's only a few minute job.

Should isapnp make a better effort at working out which interupts to hand to
which PnP device it detects? Well yes I think it could do, PCI PnP is well
designed and will always work ok, ISA was never meant for PnP and so windows
simply has to use guess work. Whereas Linux isapnp doesn't bother it wants
you to pick settings yourself. This gives the advantage in that some h/w
configs which are doomed to failure forever due to PnP clashes that can't be
solved by the ever hand holding windows, will work in Linux.

Damion

--
Damion Yates - Damion.Yates [at] bbc.co.uk

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