[lug] Parport Error

[rm at fabula.de]

On Fri, May 02, 2003 at 11:41:07AM -0600, D. Stimits wrote:
> SoloCDM wrote:
> 
> >I have parport in my /etc/modules file.  Nothing happened until
> >recently.  When the server is booting I get the following error:
> >
> >   parport0: detected irq 7; use procfs to enable interrupt-driven
> >   operation.
> >
> >How can the situation be corrected?

Is there a "situation"? I'd say that the parport module detected that
your parallel port supports interupts (not all of them do, and some have
to be enabled by means of BIOS settings). The module seems to inform you
that you can enable interupt driven operation (which tends to eat less
CPU cycles). Nothing to worry, i'd say.

 Just my 0.002$ 

   Ralfd

> >
> I think it is just telling you that it is in a low performance mode that 
> polls continuously (or at least continuously when told to print), rather 
> than using IRQ to tell it when there is data available/requested. You 
> can read more about it in the kernel source tree Documentation directory:
> /usr/src/linux/Documentation/parport.txt
> or
> /usr/src/linux-2.4/Documentation/parport.txt
> 
> D. Stimits, stimits AT attbi DOT com
> 
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