l double-checked. There is a makefile in there. In fact there are two.
If you want to use interrupts, you need a kernel module to absorb the interrupt and then make a call-back for you.
That code is in there - but you only need it if you want to use the interrupts. Otherwise the code will poll for done.
I'd start with the polling-type program until you are confident it works and then move on to the interrupt.
The code is simple and hopefully straight forward.
Good luck.
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