[Linux-parport] Handle interrupts

[Dirk Jagdmann]

You can do it from user-space with the ppdev driver. See
<http://people.redhat.com/twaugh/parport/html/ppdev.html>
I have used this successfully to read the keys available on a LCD
module attachted to the parallel port. Each key press is indicated by
an interrupt, and I can wait for that interrupt with a select() call
on the ppdev file descriptor.

> How can I use parpot to handle interrupts in SPP mode?

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