On Fri, Apr 17, 2015 at 11:57 PM, Paul Thomas <pthomas8589@xxxxxxxxx> wrote: > Hello, I would like to setup an iio_interrupt_trigger. I see the the > actual request_irq happens in iio_interrupt_trigger_probe. What is a > good example of a driver using this? > Good question. AFAIK there is no driver directly using iio_interrupt_trigger. > I take it that, if I have a GPIO pin setup as an interrupt from > userspace, there is no way to add the trigger from userspace in a way > similar to 'iio_sysfs_trigger/add_trigger'? You could use this trigger from user space by writing: echo irqtrigX > /sys/bus/iio/iio:device0/trigger/current_trigger The problem is GPIO irq setup. iio-trig-interrupt uses platform data to receive the IRQ number to associate with the irqtrigger. Could you tell use more about what exactly to you want to achieve? :). If you don't really need a hardware interrupt to be the event source for your trigger you can use the IIO hrtimer patches. The work is still on going here: https://lkml.org/lkml/2015/4/6/113 thanks, Daniel. -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
