[SATLUG] Parallel port problem with OpenCBM...

Richard Suberg rsuberg at satx.rr.com
Thu Sep 25 22:51:08 CDT 2008

One thing to check to see if your BIOS has been set up to allow for IRQ
usage.  SPP ports don't use IRQ, and either EPP use an IRQ, and ECP uses a
DMA channel. IIRC.  Keep in mind, all 3 are "parallel ports", just different
semi-compatible standards of the same thing.


-----Original Message-----
From: satlug-bounces at satlug.org [mailto:satlug-bounces at satlug.org] On Behalf
Of Bamse
Sent: Thursday, September 25, 2008 4:47 PM
To: The San Antonio Linux User's Group Mailing List
Subject: [SATLUG] Parallel port problem with OpenCBM...


I'm trying to install OpenCBM 0.4.2a on Ubuntu 8.0.4...
I followed the instruction on this page pretty much line by line..

The install went fine but the last command seem to cause problems,

sudo depmod
sudo modprobe parport
sudo rmmod lp
sudo modprobe cbm

bamse at bamse-desktop:~/opencbm-0.4.2a$ sudo modprobe cbm lp=0
FATAL: Error inserting cbm 
(/lib/modules/2.6.24-19-generic/kernel/drivers/char/cbm.ko): No such device
bamse at bamse-desktop:~/opencbm-0.4.2a$

To troubleshoot I typed dmesg and got the following at the end,
[ 6014.341506] cbm_init: parallel port irq not configured: 0
[ 6060.762850] cbm_init: parallel port irq not configured: 1
[ 6063.103631] cbm_init: non-existant port: 2
bamse at bamse-desktop:~/opencbm-0.4.2a$

Looks like I have two parallel ports installed but they do not have an 
irq configured...
Anyone knows how to configure the ports to use interrupts ?

Please keep in mind that I'm a beginner so be patient with me...


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