AD7682 interface to Linux processor

Hi there, Running into a few issues while attempting to setup the IIO subsystem.

Using this as a basis -

1. The first instruction is to specify the reference voltage via the regulator framework. I'm assuming this is in the SPI file system somewhere in linux? Can you help clarify where I can find this file?

2. I have enabled Linux driver support for this driver and rebuilt the kernel. The problem is when I run the command cd /sys/bus/iio/driver. I don't see the IIO folder? How do I get this installed?

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