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// Copyright 2021 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
library fuchsia.lightsensor;
/// `Sensor` will return calibrated readings from a product-configured light
/// sensor.
protocol Sensor {
/// Gets the current [LightSensorData]. Returns immediately on first call;
/// subsequent calls return when the value changes.
Watch() -> (struct {
data LightSensorData;
type LightSensorData = table {
/// Light intensities measured by the light sensor.
1: rgbc Rgbc;
/// A weighted sum of the RGBC intensities.
2: calculated_lux float32;
/// The color temperature of the measured light.
3: correlated_color_temperature float32;