On 01/11/2013 01:36:29 AM, r.pa...@mei-india.com wrote:
Hello,
We are working on board based on Freescale MPC8313ERDB. We have
ported linux 3.0.46 kernel on it. In one of device driver written by
us, we need to take some action upon asserting IRQ0 interrupt. For
this we have written interrupt handler which takes care of this. We
are able register interrupt handler successfully with the help of
'request_irq'. We confirmed this by checking respective entry in
'/proc/interrupts'. We have also confirmed assertion of interrupt
line (IRQ0) on oscilloscope. The problem is, interrupt handler does
not execute upon asserting the interrupt line.
What IRQ number did you pass to request_irq()? request_irq() takes
virtual interrupt numbers, not anything out of the chip manual.
If that's not the issue, is the interrupt configured properly for level
and sense?
-Scott
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