Re: [PARPORT] Parallel port user-space driver and interrupts

From: Tim Waugh (twaugh@redhat.com)
Date: Tue Apr 04 2000 - 14:37:16 EDT

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On Tue, 4 Apr 2000, Carl Michal wrote:

> I did know ppdev does this - but correct me if I'm wrong: ppdev in
> 2.2.x doesn't use hardware handshaking (big loss in speed, about a

That's right -- but it will report interrupts for you, which is what your
module is doing. Use select().

Tim.
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