News Group Posts

pci parallel cards

From: Bela Lubkin <belal@sco.com>
Subject: Re: How to add PCI Parallel card to Openserver 5
Date: Tue, 3 Dec 2002 03:24:05 GMT
References: <371f3e34.0212021756.4bd8def1@posting.google.com> 

Chris Schmidt wrote:

> Okay, a while back I think I posted a message looking for some newer
> PCI 3.3V LPT cards.  Well I finally got them, and managed to get them
> working in a Proliant ML350 with The latest release of United Linux.
> 
> Now, the actual machine they need to go in is the same Compaq Server
> ML350 but in a tower config so should be the same hardware setup.  I
> need the two cards to be /dev/lp1 and /dev/lp2.  The builtin parallel
> is /dev/lp0 and is in use.
> 
> The cards used the following hardware setup:
> 
> builtin port:  0x378 irq7
> card 1:  0x3400 irq 10
> card 2:  0x3410 irq 5
> 
> How do I go about adding these to an Openserver 5.0.6 system?  Will
> there be any problems using the above addresses and irqs?
> 
> These cards are plug and play and there is no way to disable that, but
> they should always get the above addresses and irq's from the system
> because there will be no further hardware added to this server.  It
> would be nice if they had a legacy mode but they don't and Sunix is
> the only one right now who is making 3.3V cards for the newer PCI bus.
>  Lava does not have one yet, they are all 5 Volt and will not work.
> 
> They worked fine in Linux, so should work fine in Openserver.  I
> didn't need any special drivers in linux, just
> 
> # insmod parport.c 
> # insmod parport_pc.c (or .o whatever) io=0x378,0x3400,0x3410
> irq=7,10,5
> 
> And then add them as regular printers in cups.

You should be able to do this with `mkdev parallel`.

Things you need to know:

- It supports at most three parallel ports.  Your kernel is probably
already configured with three at addresses 378, 3bc, 278.  Tell it to
remove the latter two.

- It will ask for an "end base address".  It's not very important, but
give it 340f and 341f.

- The ports should be configured for the oldest/stupidest parallel port
style they support (if you have any control at all over this).

- You'll probably run `mkdev parallel` a total of 4 times -- two to
delete the old ISA addresses, two to add the new ones.  Tell it not to
relink the kernel until the last time.

- The OSR5 parallel driver is not the slightest bit PCI-aware until
OSR507.  By hardwiring the addresses and IRQs, you are relying on the
kindness of the BIOS to always configure them to the same address.

>Bela<
 

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