Expand description
2026-09-26: A sequence-locked cell of W words: readers take no lock and
never see a mix of two stores.
A device sample is crate::device::SAMPLE_WORDS words describing one
instant; one atomic per word would let a reader pair one sample’s power
with another sample’s energy counter. A writer makes the sequence word
odd, stores the words and makes it even; a reader retries until it saw the
same even value before and after reading. Every access is an atomic.
Owner: telemetry.
Invariants: load returns only a value that a single store wrote in full.