2008-08-21 13:57:47     Interrupts priority

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2008-08-21 13:57:47     Interrupts priority

Appalayagari Sreedhar (INDIA)

Message: 60858   




I have some general query about the interrupts.


Nesting is enabled by default in uClinux kernel?


in my working system requires three interrupts, request_irq gives the irq number of the each interrupt, suppose if i get the irq numbers as


18,19,20 whether these interrupts will be pre-emptive?


18-highest and 20-lowest priority.


Its a general question please clarify me on this.


Best Regards,Sreedhar.






2008-08-21 14:41:04     Re: Interrupts priority

Mike Frysinger (UNITED STATES)

Message: 60860   


the number has no relation to priority ... the only priority you have control over is the list in the kernel configuration menu