Hi all,
I'm trying to implement a "driver" using a GPIO interrupt. I tried building a
kernel module and, after failing, I tried user space interrupts
(/proc/irq/${IRQ_NUMBER}/irq) but I always get the same result: invalid argument
I can register other interrupts (in which I am not interested, e.g. SSP or ISA)
that are left unhandled. I also know that the GPIO interrupts are handled by
the generic IRQ layer... so i guess there could be a bug there... but I should
first think I'm doing something wrong, but just opening the corresponding
/proc/irq/${IRQ_NUMBER}/irq fails.
Anyone knows about this?
Gonzalo
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