zephyr

History

Carles Cufi 8c748fd005 kernel: Modify the signature of k_mem_slab_free() Modify the signature of the k_mem_slab_free() function with a new one, replacing the old void *mem with void mem as a parameter. The following function: void k_mem_slab_free(struct k_mem_slab slab, void mem); has the wrong signature. mem is only used as a regular pointer, so there is no need to use a double-pointer. The correct signature should be: void k_mem_slab_free(struct k_mem_slab slab, void *mem); The issue with the current signature, although functional, is that it is extremely confusing. I myself, a veteran Zephyr developer, was confused by this parameter when looking at it recently. All in-tree uses of the function have been adapted. Fixes #61888. Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>		2023-09-03 18:20:59 -04:00
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boards
src	kernel: Modify the signature of k_mem_slab_free()	2023-09-03 18:20:59 -04:00
CMakeLists.txt
prj.conf
README.rst
sample.yaml

README.rst

.. _dmic_sample:

DMIC Sample
###########

Overview
********

This is a very simple application intended to show how to use the Audio DMIC
API and also to be an aid in developing drivers to implement this API.
It performs two PDM transfers with different configurations (using one channel
and two channels) but does not in any way process the received audio data.

Requirements
************

The device to be used by the sample is specified by defining a devicetree node
label named ``dmic_dev``.
The sample has been tested on :ref:`nrf52840dk_nrf52840` (nrf52840dk_nrf52840)
and :ref:`nrf5340dk_nrf5340` (nrf5340dk_nrf5340_cpuapp), and provides overlay
files for both of these boards.

Building and Running
********************

The code can be found in :zephyr_file:`samples/drivers/audio/dmic`.

To build and flash the application:

.. zephyr-app-commands::
   :zephyr-app: samples/drivers/audio/dmic
   :board: nrf52840dk_nrf52840
   :goals: build flash
   :compact: