| // Copyright 2016 The Chromium 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 DEVICE_GENERIC_SENSOR_LINUX_PLATFORM_SENSOR_UTILS_LINUX_H_ |
| #define DEVICE_GENERIC_SENSOR_LINUX_PLATFORM_SENSOR_UTILS_LINUX_H_ |
| |
| #include "base/files/file_path.h" |
| #include "base/memory/ptr_util.h" |
| #include "device/generic_sensor/generic_sensor_export.h" |
| |
| namespace device { |
| |
| struct SensorDataLinux; |
| struct SensorReading; |
| |
| // Generic reader class that reads sensors data from |
| // sensors files located in the base iio folder. |
| class DEVICE_GENERIC_SENSOR_EXPORT SensorReader { |
| public: |
| ~SensorReader(); |
| |
| // Creates a new instance of SensorReader if sensor read files |
| // has been found and |sensor_paths_| are set. |
| static std::unique_ptr<SensorReader> Create(const SensorDataLinux& data); |
| |
| // Reads sensor values into |*reading| from sensor files |
| // specified in |sensor_paths_|. |
| bool ReadSensorReading(SensorReading* reading); |
| |
| private: |
| explicit SensorReader(std::vector<base::FilePath> sensor_paths); |
| |
| // Contains paths to sensor files that are set when |
| // Create() is called. |
| const std::vector<base::FilePath> sensor_paths_; |
| |
| DISALLOW_COPY_AND_ASSIGN(SensorReader); |
| }; |
| |
| } // namespace device |
| |
| #endif // DEVICE_GENERIC_SENSOR_LINUX_PLATFORM_SENSOR_UTILS_LINUX_H_ |