RE: Multiple Printers On 1 Box And Sharing

["Jim Hale" <jim-ml halemail dyndns org>]

Thanks Cokey - I appreciate yours, Anthony's and Ray's comments on this
- this is EXACTLEY what I was looking for - stuff to look out for BEFORE
I go to the trouble of doing it. I'm not a Linux Technical Guru and if I
would have run into any of this while doing the installation, I wouldn't
have known WHAT to ask.

Thanks again, I'll give this a shot sometime this weekend. :)

Jim Hale
---
Jim & Kathy's Website Collection
http://hale.dyndns.org 

-----Original Message-----
From: redhat-list-admin redhat com [mailto:redhat-list-admin redhat com]
On Behalf Of Cokey de Percin
Sent: Saturday, June 01, 2002 9:18 AM
To: redhat-list redhat com
Subject: Re: Multiple Printers On 1 Box And Sharing


Jim Hale wrote:
> 
> I have an old P233MMX sitting in my garage that I'm thinking about 
> setting up as a Printer server. Kind of like a 'fat' HP JetDirect - so

> I can move these printers anywhere I have a network connection since 
> the printers are sitting on a roll-around cart.
> 
> Question is, can I have 2 printer ports in the machine (one for my 
> laser and one for my Color Inkjet) and be able to share them to Linux 
> and Windows (Win2k Pro and XP) machines? I know I can do it with one 
> but I haven't seen anything about 2. I'd like to get Red Hat installed

> and configured, remove the monitor, keyboard and mouse and then just 
> access the box thru SSH and VNC.
> 
> Has anyone tried this?
> 
> Thanks!
> 
> Jim Hale
> ---

Yup, got 3 on one (RH 6.2 with 2.4.18) at the moment with no
modification.  
I believe I read that that was the limit without changing something in
the 
kernel code, but I haven't confirmed it.  

If you're using an ISA card with manual settings, you shouldn't have
much 
of a problem.  Just chuck it in and the system should detect all the
ports.  
You will need to be sure you have enough IRQ's/io ports and that are
they 
set correctly.  If it's ISA PNP, I'm not sure, but it's probably handled
like the PCI below. 

If you're using a PCI card, my experience is that it's a bit of a
different 
ball game.  Since all the add on PCI parallel port boards that I've seen
are PNP, You must determine the IRQ and/or io port on the card that you
wish 
to attach to a given lp port using information from the boards manuf.
and  
/proc/pci.  By this I mean that it may not be obvious which io port on
the card 
is to be used as for a parallel port.  My dual port PCI parallel card
shows 
up like this in the /proc/pci:

  Bus  0, device   5, function  0:
    Communication controller: PCI device 9710:9815 (rev 1).
      IRQ 20.
      Master Capable.  Latency=64.
      I/O at 0xfc70 [0xfc77].
      I/O at 0xfc78 [0xfc7f].
      I/O at 0xfc88 [0xfc8f].
      I/O at 0xfc90 [0xfc97].
      I/O at 0xfc98 [0xfc9f].
      I/O at 0xfcb0 [0xfcbf].                                          
 
You must have the manuf. specs to know.  Also, not all PCI
parallel/serial cards are supported, although thanks to Tim Waugh of RH,
many (most?) are.  Note also 
that moving a PCI board usually/always (??) changes the io ports.

In either case you must set the IRQ/io ports in your /etc/modules.conf.
Mine looks like so:

------------------------------------------------------------------------
-

#
# Current Parallel setup! Be Careful; Very Careful!!
#
# Note: Anytime the PCI parallel card is moved to a different
#       PCI slot, the io ports change.  Check the /proc/pci
#       file for the new ones....
#
alias parport_lowlevel parport_pc
options parport_pc io=0x378,0xfc70,0xfc88 irq=7,none,none      

------------------------------------------------------------------------
-

For additional parallel port information see
http://www.torque.net/linux-pp.html


Best

Cokey

-- 
------------------------------------------------------------------
F. 'Cokey' de Percin, DBA       Email:
CSC (formerly Mynd)              Work - cokeydepercin mynd com
Columbia, South Carolina         Home - fdepercin sc rr com



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