How to change dell edge gateway 3001 gpio pin to analog


In dell edge gateway how we can change the gpio pin from digital to analog, it is having ubuntu core as OS. It is having 8 gpio pins only some of them I want to make digital and some of them to analog. I have checked the Dell edge gateway 3001 manual but they have not given anything about it but they have mentioned we can make a gpio pin either digital or analog.

this might give you some help. though that is using the DNP3 protocols, so unsure if easier way to do it for lower control levels.