pub const ILLUMINANCE: u32 = 94;Expand description
Ambient illuminance (PROP_ILLUMINANCE) — UINT32_LE millilux.
Millilux rather than lux because the interesting region for an
indicator that should not be intrusive at night is below one lux.
Sampled when read; empty when the sensor could not be read. A
board reports its clamped maximum above the sensor’s saturation
point rather than extrapolating past it. Requires
CAP_ILLUMINANCE.