e18fcbba5a
Now that device_api attribute is unmodified at runtime, as well as all the other attributes, it is possible to switch all device driver instance to be constant. A coccinelle rule is used for this: @r_const_dev_1 disable optional_qualifier @ @@ -struct device * +const struct device * @r_const_dev_2 disable optional_qualifier @ @@ -struct device * const +const struct device * Fixes #27399 Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
/*
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* Copyright (c) 2012-2014 Wind River Systems, Inc.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr.h>
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#include <device.h>
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#include <devicetree.h>
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#include <drivers/sensor.h>
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#define BME280 DT_INST(0, bosch_bme280)
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#if DT_NODE_HAS_STATUS(BME280, okay)
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#define BME280_LABEL DT_LABEL(BME280)
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#else
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#error Your devicetree has no enabled nodes with compatible "bosch,bme280"
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#define BME280_LABEL "<none>"
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#endif
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void main(void)
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{
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const struct device *dev = device_get_binding(BME280_LABEL);
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if (dev == NULL) {
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printk("No device \"%s\" found; did initialization fail?\n",
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BME280_LABEL);
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return;
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} else {
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printk("Found device \"%s\"\n", BME280_LABEL);
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}
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while (1) {
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struct sensor_value temp, press, humidity;
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sensor_sample_fetch(dev);
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sensor_channel_get(dev, SENSOR_CHAN_AMBIENT_TEMP, &temp);
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sensor_channel_get(dev, SENSOR_CHAN_PRESS, &press);
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sensor_channel_get(dev, SENSOR_CHAN_HUMIDITY, &humidity);
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printk("temp: %d.%06d; press: %d.%06d; humidity: %d.%06d\n",
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temp.val1, temp.val2, press.val1, press.val2,
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humidity.val1, humidity.val2);
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k_sleep(K_MSEC(1000));
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}
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}
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