Re: lp.c in 2.0.x

Andrea Arcangeli (
Sat, 25 Apr 1998 17:03:38 +0200 (CEST)

On Sat, 25 Apr 1998, Wolfgang Walter wrote:

>> It force lp to don' t care about the interrupt so it' s the same of
>> working in polling, take a look at /proc/interrupt and you will see.
>Not really, as I use tunelp to switch interrupt on. And /proc/interrupts
>show that the interrupt is installed and works.

Excuse me, I should look _all_ your patch ;-).

Basically your patch request the printer irq a lot before starting to
print. It doesn' t change how the lp handle the interrupt. This make no
sense to me. Also if this is true it means that in the parport code we
can' t request_irq/free_irq during the printing and so a lot of parport
code should be rewritten to handle that. I think also my fix can' t help
you. It would be nice if you could try the plain 2.1.98 lp and feedback.

Andrea[s] Arcangeli

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