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Where do p1011 interrupts show up on Linux?

Question asked by Cal Page on Oct 15, 2012
Latest reply on Oct 16, 2012 by Scott Wood

Our hardware connects to pin N25 / IRQ[3] on a P1011 processor chip.

 

How do I register for this interrupt under linux 2.6?

 

The code ends up a request_threaded_irq ( 3, ... )

 

but trips up here:

 

if (desc->status & IRQ_NOREQUEST) {

      printk("CP #3 fail -EINVAL, desc->status = 0x%08x, IRQ_NOREQUEST = 0x%08x, name = <%s>\n",

     desc->status,
     IRQ_NOREQUEST,
     desc->name);

      return -EINVAL;

    }

 

Cal Page

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