| /* |
| * Copyright (c) 2016 Intel Corporation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <zephyr.h> |
| #include <misc/printk.h> |
| #include <sensor.h> |
| |
| /** |
| * @file Sample app using the MAX44009 light sensor through ARC I2C. |
| * |
| * This app will read the sensor reading via I2C interface and show |
| * the result every 4 seconds. |
| */ |
| |
| void main(void) |
| { |
| struct device *dev; |
| struct sensor_value val; |
| uint32_t lum = 0; |
| |
| printk("MAX44009 light sensor application\n"); |
| |
| dev = device_get_binding("MAX44009"); |
| if (!dev) { |
| printk("sensor: device not found.\n"); |
| return; |
| } |
| |
| while (1) { |
| if (sensor_sample_fetch_chan(dev, SENSOR_CHAN_LIGHT) != 0) { |
| printk("sensor: sample fetch fail.\n"); |
| return; |
| } |
| |
| if (sensor_channel_get(dev, SENSOR_CHAN_LIGHT, &val) != 0) { |
| printk("sensor: channel get fail.\n"); |
| return; |
| } |
| |
| lum = val.dval; |
| printk("sensor: lum reading: %d\n", lum); |
| |
| k_sleep(4000); |
| } |
| } |