daniel sheltraw wrote:
>
> Hello RTAIers
>
> Two questions:
>
> (1) Do RT interrupts always interrupt any RT task or is there some
> dependence on the priority level set for the task?
>
Yes, as long as interrupts are not masked.
> (2) What does rt_free_linux_irq() do and why is it needed? Would
> you please give me an example of when it might be used.
If you add a handler to a linux irq by using rt_request_linux_irq, you
need to free it when you're done. You do this using rt_free_linux_irq.
Regards, Stuart
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