On Tue, 7 May 2024 10:30:56 +0000 inv.git-commit@xxxxxxx wrote: > From: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@xxxxxxx> > > Add channel attributes "power_mode" and "power_mode_available" for > setting accel power mode (low-noise or low-power). > > Differents ODRs and filter are possible depending on the power mode. > Thus make ODRs and filter dynamic and check values when applying. Hi Jean-Baptiste No Sign-off? We have never provided this sort of control because it's near impossible for user space to know what to do with it. Various attempts happened in the past to provide enough info to userspace, but didn't succeed because what low power means is incredibly chip dependent. As a general rule everyone wants low power, but at 0 perf cost :) What are the results of low power mode? Normally it maps as something we can enable when some other set of states is set or automatically control based on how often the device is being accessed etc. For example, what do we loose by choosing this mode for everything below 200Hz? I see there is some reference to 'low noise' - what does that actually mean for this device? Is it oversampling or running lower resolution on the ADCs? If so those are the things to look at as ways to control this. Choose lowest power to meet a given set of requirements. Jonathan
