Craig, On Fri, 24 Jan 2003 06:37:12 PST Craig Caughlin wrote:
> My BIOS parallel port setting is 378/IRQ7, the "Onboard Parallel Mode" > setting is currently set to ECP (whatever that means - my BIOS choices are: > Manual, EPP, ECP, and ECP/EPP), and "ECP Mode Use DMA" setting is 3. Very brief explanations of those settings are included in the document I linked to below. More complete explanations should easily retrievable via google. (I don't know offhand what all the acronyms stand for.) Also: http://www.linuxprinting.org/howto/kernel.html http://people.redhat.com/twaugh/parport/html/parportguide.html http://people.redhat.com/twaugh/parport/ will tell you more than you probably ever wanted to know about linux parallel port support. > This > should mean that I wouldn't need to load the parport_pc module with the > other parameters per your suggestion, doesn't it? Not necessarily. Try this sequence: # stop printing, remove drivers, and show irq/io state svi p910nd stop rmmod lp parport_pc parport cat /proc/interrupts cat /proc/ioports # insert drivers specifying irq/io, show irq/io state, start # print service, and test printing insmod parport insmod parport_pc io=0x378 irq=7 insmod lp cat /proc/interrupts cat /proc/ioports svi p910nd start echo "foobar" > /dev/lp0 (The SR FAQ at the bottom of this message has suggestions for saving the output so you can easily send it to the list...that is if you're not using ssh so you can just copy and paste from the terminal into your email client.) > This is a fairly new board > and processor (Intel 1.2 Ghz Celeron) that I assembled specifically to be my > Bering box, so its BIOS settings are pretty flexible. The bios settings are probably okay as-is. You may want to read the parport documentation linked above to find out for sure though. You should also verify you don't have other devices on IRQ 7. ("cat /proc/interrupts" should tell us if you do.) > I'm sorry...can you > tell me how to issue the "cat" commands before and after the modules (I > don't know how to do that :-( ) I should have been more clear. I was just asking you to type those commands before and after you executed the insmod commands. See above for an example of what you would type. --Brad > Thank you all for your help and suggestions! > > Craig > > > -----Original Message----- > From: Brad Fritz [mailto:[EMAIL PROTECTED]] > Sent: Thursday, January 23, 2003 4:23 PM > To: Craig Caughlin > Cc: LEAF > Subject: Re: [leaf-user] Bering print server set-up > > > > Craig, > > On Thu, 23 Jan 2003 10:53:39 PST Craig Caughlin wrote: > > > Hey Brad, > > Thanks for all the suggestions!!! Here are my results below, and it seems > > like my problem is that my box cannot create /dev/lp0: error 16??? Is that > > right? Any suggestions? Thank you very much! > > That's not a good sign. A hunch tells me it might be an interrupt > conflict or I/O problem. Does your BIOS let you enable and disable > the parallel port? If so, is it enabled? Does the BIOS have > interrupt and/or I/O settings for it? > > You may need to load the parport_pc module with: > > insmod parport_pc io=0x378 irq=7 > > (Assuming your parallel port is using the IO port at 0x378 and > IRQ 7. More info at, including a description of the > /proc/sys/dev/parport tree at : > http://dan.drydog.com/docs/redhat/kernel-doc-2.4.18/parport.txt ) > > Also, what is the output of "cat /proc/interrupts" and > "cat /proc/ioports" both before and after loading the modules. > > --Brad > > > Craig > > [very complete reply to debugging suggestions snipped] ------------------------------------------------------- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com ------------------------------------------------------------------------ leaf-user mailing list: [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/leaf-user SR FAQ: http://leaf-project.org/pub/doc/docmanager/docid_1891.html
