| // Copyright 2015 The Chromium OS Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef THERMALD_HWMON_TEMPERATURE_SENSOR_H_ |
| #define THERMALD_HWMON_TEMPERATURE_SENSOR_H_ |
| |
| #include <string> |
| |
| #include "base/files/file_path.h" |
| #include "base/macros.h" |
| |
| #include "thermald/temperature_sensor_common.h" |
| |
| namespace thermald { |
| |
| // Class to read the temperature from a Linux hwmon sensor: |
| // |
| // https://www.kernel.org/doc/Documentation/hwmon/sysfs-interface |
| class HwmonTemperatureSensor : public TemperatureSensorCommon { |
| public: |
| // Construct a hwmon sensor with a custom name. |
| HwmonTemperatureSensor(int hwmon_dev_id, int sensor_id, |
| const std::string &name); |
| |
| // Construct a hwmon sensor with the default name. |
| // The name of the sensor will be hwmon<dev id>.temp<sensor id> |
| HwmonTemperatureSensor(int hwmon_dev_id, int sensor_id); |
| |
| // Read the temperature from the sensor. |
| bool ReadTemperature(int *value) override; |
| |
| private: |
| const base::FilePath sysfs_attr_input_; |
| |
| DISALLOW_COPY_AND_ASSIGN(HwmonTemperatureSensor); |
| }; |
| |
| } // namespace thermald |
| |
| #endif // THERMALD_HWMON_TEMPERATURE_SENSOR_H_ |