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