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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>
.. _lps22hh: LPS22HH: Temperature and Pressure Monitor ######################################### Overview ******** This sample periodically reads pressure from the LPS22HH MEMS pressure sensor and displays it on the console. Requirements ************ This sample uses the LPS22HH sensor controlled using the I2C interface. References ********** - LPS22HH: http://www.st.com/en/mems-and-sensors/lps22hh.html Building and Running ******************** This project outputs sensor data to the console. It requires an LPS22HH sensor, which is present on the X-NUCLEO-IKS01A3 shield. .. zephyr-app-commands:: :zephyr-app: samples/sensor/lps22hh :board: nrf52dk_nrf52832 :shield: x_nucleo_iks01a3 :goals: build :compact: Sample Output ============= .. code-block:: console Configured for triggered collection at 1 Hz Observation: 1 Pressure: 97.474 kPa Temperature: 22.19 C Observation: 2 Pressure: 97.466 kPa Temperature: 22.21 C Observation: 3 Pressure: 97.473 kPa Temperature: 22.21 C Observation: 4 Pressure: 97.455 kPa Temperature: 22.21 C <repeats endlessly every second>