On Sat, Apr 18, 2015 at 3:14 PM, Daniel Baluta <daniel.baluta@xxxxxxxxx> wrote: > 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 You mean after I've loaded an iio_interrupt_trigger and can see irqtrigX in /sys/bus/iio/devices right? (I tried it just now without that, and current_trigger is just blank after 'echo irqtrigX') Which means I need a proper struct platform_device setup? Looking through Documentation/driver-model/platform.txt I see a platform_device is normally loaded with platform_device_register. thanks, Paul -- 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
