On Tue, 15 Mar 2005 13:35, Matt Kory wrote: > Is it possible to use poll or select to detect a change in the status > bits of the parallel port? I tried something like this, and took bits > 5 and 6 of the status register low and nothing seemed to happen. Is > what I am trying to do even possible, or I am supposed to take a > certain bit low to cause a read event? Any help is appreciated.
PPI doesn't support select/poll. I don't think ere is any support for interrupt based notifications.. The only thing interrupts appear to be used for is for IEE1284 state changes. ie you're stuck with polling :( -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
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