<div dir="ltr"><span style="font-family:arial,sans-serif;font-size:12.666666984558105px">I am trying to figure out interrupts by writing a shadow of Rubini's 'short' program. Recall that Rubini tells us to enable parallel port interrupts by wiring pins 9&10 together, then writing binary data to the parallel port's address. </span><div style="font-family:arial,sans-serif;font-size:12.666666984558105px">
<br></div><div style="font-family:arial,sans-serif;font-size:12.666666984558105px">I am doing that, but: </div><div style="font-family:arial,sans-serif;font-size:12.666666984558105px">- I don't see interrupts when I write to the port</div>
<div style="font-family:arial,sans-serif;font-size:12.666666984558105px">- I do see one interrupt when I unload the driver (in the fop's .release method)</div><div style="font-family:arial,sans-serif;font-size:12.666666984558105px">
- This happens whether or not the pins are wired up. </div><div style="font-family:arial,sans-serif;font-size:12.666666984558105px"><br></div><div style="font-family:arial,sans-serif;font-size:12.666666984558105px">What is going on here?</div>
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