Help: How RTEMS Interrupt handling Framework Works?

[Alex]

Hi, 
 
 I would like to build a ISR to respond to a printer port interrupt, just to be familiar/trainning with interrupt handling in rtems. 
 I now that rtems include samples that could help me writing the software but I would like to learn how everything works befiore starting coding.
 So I have been searching for documents documenting the way rtems has to respond to interrupts but I cant find anything.
 
 Do you know any place where I could get information about the rtems interrupt handling framework?

I am using rtems in a i686 pc...

Many thanks,

 Alex
 
 


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