On Mon, Dec 21, 2009 at 3:30 PM, Bill Gatliff <b...@billgatliff.com> wrote: > gpio_get_value() on them. There isn't any existing code that I can find > that allows you to read the states of IRQ pins, be it under gpiolib or > otherwise. And I think the reason for that is that there's no way to > actually read the states of those pins at all--- the hardware just > doesn't work that way.
Correct. IRQ2 can only be used as IRQ2. It cannot be used a GPIO. (Well, I suppose you *could* try to hack into the interrupt controller driver and fetch the pin state that way; but I don't know if you can read the state of masked out IRQ pins, and it sure would be ugly.) g. -- Grant Likely, B.Sc., P.Eng. Secret Lab Technologies Ltd. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
