> Date: Sat, 3 Nov 2018 18:12:35 +0100 > From: Landry Breuil <lan...@openbsd.org> > > > Well, altitude really is just a vertical distance, so SENSOR_DISTANCE > > is the right one. You obviously should convert the altitude from > > meters into millimeters. If you think it would be more appropriate to > > display distances in meters, we (you?) can adjust sysctl(8). > > Agreed, from what i understand there's a difference between 'the unit in > which the value is stored internally in the int64_t' and the 'the unit > used when displaying the value'.
Correct. The internal unit is chosen to provide a sensible range and precision given that it is stored into an int64_t. How it gets displayed is entirely up to the code that interprets the value.