Documentation

Installs an interrupt handler. The installed interrupt service is called indirectly from a function which takes care of all the book keeping (e.g, clears the interrupt register). Use this function with a NULL isr to remove the interrupt service.

Returns:

0 if successful, <0 otherwise

Parameters:

ID - board id
inum - interrupt number
isr - interrupt service routine
arg - optional user argument which is passed to the ISR