581069942c
If we don't get a dev pointer from device_get_binding() we should not dereference it. Just drop the name from the printk message as in the future this is likely to use DEVICE_DT_GET(). Fixes #35112 Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
/*
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* Copyright (c) 2020 Matija Tudan
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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 MAX17262 DT_INST(0, maxim_max17262)
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#if DT_NODE_HAS_STATUS(MAX17262, okay)
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#define MAX17262_LABEL DT_LABEL(MAX17262)
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#else
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#error Your devicetree has no enabled nodes with compatible "maxim,max17262"
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#define MAX17262_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(MAX17262_LABEL);
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if (dev == NULL) {
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printk("No device found...\n");
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return;
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}
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printk("Found device %s\n", dev->name);
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while (1) {
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struct sensor_value voltage, avg_current, temperature;
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float i_avg;
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sensor_sample_fetch(dev);
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sensor_channel_get(dev, SENSOR_CHAN_GAUGE_VOLTAGE, &voltage);
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sensor_channel_get(dev, SENSOR_CHAN_GAUGE_AVG_CURRENT,
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&avg_current);
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sensor_channel_get(dev, SENSOR_CHAN_GAUGE_TEMP, &temperature);
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i_avg = avg_current.val1 + (avg_current.val2 / 1000000.0);
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printk("V: %d.%06d V; I: %f mA; T: %d.%06d °C\n",
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voltage.val1, voltage.val2, i_avg,
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temperature.val1, temperature.val2);
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k_sleep(K_MSEC(1000));
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}
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}
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