I have a Nvidia Tegra TK1 with spi port. I have successfully enabled IIO on it for the spi. I used the ADIS16480 module. The issue I have is that i get a value of 0 anytime I read the _raw values. How can I debug the issue? Is there something else I need to know about iio. I dont have any trigger source. Can anyone help or show me an example where iio is enabled on an embedded system. Does it need access to an interrupt pin?