sdk/fidl/fuchsia.settings/display.fidl

// Copyright 2019 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.settings;

/// Settings related to display
[Discoverable]
protocol Display {
    /// Gets the current [DisplaySettings]. Returns immediately on first call;
    /// subsequent calls return when the value changes.
    Watch() -> (DisplaySettings settings) error Error;

    /// Enable or disable automatic adjustment of brightness.
    SetAutoBrightness(bool auto_brightness) -> () error Error;

    /// Changes the brightness to a value from 0-1.0, with 1.0 representing
    /// full brightness. Values greater than 1.0 may be added in future.
    SetBrightness(float32 brightness_value) -> () error Error;
};

table DisplaySettings {
    1: bool auto_brightness;
    2: float32 brightness_value;
};