Hello Everybody,

I have few queries regarding request_irq() function.

1. What is behavior of the kernel when i register request_irq() on a interurpt line, which is already generating interrupts. I mean Interrupt is already generated over the line and I am trying to register that interrupt line using request_irq().
2. What are the precautions should be taken before/after registering the request_irq() function with respect to hardware.
3.How to handle the spurious/fake interrupts when we register the request_irq().

Can anybody give some information about the same.

Thanks in advance.

Regards
Srinivas