0b90fd5adf
As both C and C++ standards require applications running under an OS to
return 'int', adapt that for Zephyr to align with those standard. This also
eliminates errors when building with clang when not using -ffreestanding,
and reduces the need for compiler flags to silence warnings for both clang
and gcc.
Most of these changes were automated using coccinelle with the following
script:
@@
@@
- void
+ int
main(...) {
...
- return;
+ return 0;
...
}
Approximately 40 files had to be edited by hand as coccinelle was unable to
fix them.
Signed-off-by: Keith Packard <keithp@keithp.com>
52 lines
1.1 KiB
C
52 lines
1.1 KiB
C
/*
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* Copyright (c) 2017, NXP
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/kernel.h>
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#include <zephyr/drivers/sensor.h>
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#include <stdio.h>
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K_SEM_DEFINE(sem, 0, 1); /* starts off "not available" */
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static void trigger_handler(const struct device *dev,
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const struct sensor_trigger *trigger)
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{
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k_sem_give(&sem);
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}
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int main(void)
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{
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struct sensor_value gyro[3];
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const struct device *const dev = DEVICE_DT_GET_ANY(nxp_fxas21002);
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if (dev == NULL || !device_is_ready(dev)) {
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printf("Could not get fxas21002 device\n");
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return 0;
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}
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struct sensor_trigger trig = {
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.type = SENSOR_TRIG_DATA_READY,
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.chan = SENSOR_CHAN_GYRO_XYZ,
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};
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if (sensor_trigger_set(dev, &trig, trigger_handler)) {
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printf("Could not set trigger\n");
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return 0;
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}
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while (1) {
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k_sem_take(&sem, K_FOREVER);
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sensor_sample_fetch(dev);
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sensor_channel_get(dev, SENSOR_CHAN_GYRO_XYZ, gyro);
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/* Print gyro x,y,z */
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printf("X=%10.3f Y=%10.3f Z=%10.3f\n",
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sensor_value_to_double(&gyro[0]),
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sensor_value_to_double(&gyro[1]),
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sensor_value_to_double(&gyro[2]));
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}
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return 0;
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}
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