Re: lp device irq?

rohrer keith w (
Fri, 14 Feb 1997 17:29:21 -0600 (CST)

> I thought that a printer used an irq. So when someone asked i said it did
> but when i checked it seems to be polling. I don't know if it performs
> better or not when polling but I tryed to get it to use an irq.
You need to use tunelp to get the lp's to use an IRQ. When you do, you can
pick any IRQ you please, though trying to share an IRQ may fail and you
won't get the results you want if you pick the wrong IRQ.

> I made lp a module and so on. I've a module and it loads fine.
That's not necessary for tunelp. However, it probably ought to default
to using the IRQ you explicitly requested when you insmod (or request
IRQ 0 to poll, just like with tunelp).