This one? https://www.xda-developers.com/qualcomm-snapdragon-845-hexag...
That's the right chip. The other comment shows off the article. I forgot that it was called the "sensor hub", that's why I couldn't find the post showing how it works.
alt Hacker News
That's the right chip. The other comment shows off the article. I forgot that it was called the "sensor hub", that's why I couldn't find the post showing how it works.