I've a circuit where I need to use a dual digipot - the thing is I need one to be linear & one to be log - they don't make up hybrid - it's one or the other. I really don't have PCB space for two separate pots, so just wondering is there anyway this can be spoofed in code?

I'm using a linear pot as input...I'm thinking here along the lines of some clever maths on the AtoD sample (ie from the linear input pot) to then control the output pot in a log-esque way?