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Altera_Forum
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14 years ago

I/o irq

Hello my system has two CPUs- CPU1 w/ linux and cpu2 w/o linux. I want to handle an IRQ inside CPU1 Linux generated by CPU2 when it writes to a PIO . [cpu1]---[cpu2]
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

In the device driver you need to register the IRQ with the Kernel to have it call a function of yours when an interrupt occurs.

Take a look at another driver (e.g. TTY) on how this is done.

-Michael