zephyr/samples/drivers/flash_shell
Tomasz Bursztyka e18fcbba5a device: Const-ify all device driver instance pointers
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>
2020-09-02 13:48:13 +02:00
..
src device: Const-ify all device driver instance pointers 2020-09-02 13:48:13 +02:00
CMakeLists.txt
Kconfig
prj.conf
README.rst
sample.yaml

.. _samples_flash_shell:

Flash Shell Sample
##################

Overview
********
This is a simple shell module that allows arbitrary boards with flash
driver support to explore the flash device.

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

This project can be built and executed on as follows:

.. zephyr-app-commands::
   :zephyr-app: samples/drivers/flash_shell
   :host-os: unix
   :board: qemu_x86
   :goals: run
   :compact:

Sample Output
=============

.. code-block:: console

    uart:~$ flash page_count
    Flash device contains 1024 pages.
    uart:~$ flash page_erase 1023
    Erasing page 1023 (start offset 0xffc00, size 0x400)
    uart:~$ flash page_write 1023 8 17 19 28 39
    Reading back written bytes:
    11 13 1c 27
    uart:~$ flash page_write 1023 4 77 9 1 2
    Reading back written bytes:
    4d 09 01 02
    uart:~$ flash page_read 1023 4 12
    4d 09 01 02 | 11 13 1c 27
    ff ff ff ff
    uart:~$ flash page_read 1023 0 16
    ff ff ff ff | 4d 09 01 02
    11 13 1c 27 | ff ff ff ff