67 lines
1.4 KiB
C++
67 lines
1.4 KiB
C++
/*
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* Copyright (C) 2022-2024 The LineageOS Project
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#include <cstdint>
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#include <string>
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#include "IDumpable.h"
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namespace aidl {
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namespace android {
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namespace hardware {
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namespace light {
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/**
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* A Linux backlight device.
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* @see https://www.kernel.org/doc/Documentation/ABI/stable/sysfs-class-backlight
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*/
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class BacklightDevice : public IDumpable {
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public:
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BacklightDevice() = delete;
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/**
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* Constructor.
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*
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* @param name The name of the backlight device
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*/
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BacklightDevice(std::string name);
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/**
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* Get the name of the backlight device.
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*
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* @return std::string The name of the backlight device
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*/
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std::string getName() const;
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/**
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* Return whether this backlight device exists.
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*
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* @return bool true if the backlight device exists, false otherwise
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*/
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bool exists() const;
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/**
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* Set the brightness of this backlight device.
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*
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* @param value The brightness value to set
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* @return bool true if the brightness was set successfully, false otherwise
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*/
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bool setBrightness(uint8_t value);
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void dump(int fd) const override;
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private:
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std::string mName;
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std::string mBasePath;
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uint32_t mMaxBrightness;
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};
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} // namespace light
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} // namespace hardware
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} // namespace android
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} // namespace aidl
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