michaelh/zephyr
1
0
Fork 0
Code Releases Activity

doc/reference/runtime_conf: improve example snippet

Browse source 
Improve settings example snippet so that it builds and works as
expected. For usability purposes, add print of stored value.

Signed-off-by: Jacob Siverskog <jacob@teenage.engineering>
This commit is contained in:
Jacob Siverskog 2020-02-17 15:43:48 +01:00 • committed by Johan Hedberg
commit 09ade0191d
1 changed files with 22 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

34
doc/reference/runtime_conf/settings/settings.rst
View file

@ -193,9 +193,15 @@ up from where it was before restart.
.. code-block:: c
#include <zephyr.h>
#include <power/reboot.h>
#include <settings/settings.h>
#include <sys/printk.h>
#include <inttypes.h>
#define DEFAULT_FOO_VAL_VALUE 0
static int8 foo_val = DEFAULT_FOO_VAL_VALUE;
static uint8_t foo_val = DEFAULT_FOO_VAL_VALUE;
static int foo_settings_set(const char *name, size_t len,
settings_read_cb read_cb, void *cb_arg)
@ -220,22 +226,26 @@ up from where it was before restart.
return -ENOENT;
}
void main(void)
{
settings_subsys_init();
foo_val++;
settings_save_one("foo/bar", &foo_val, sizeof(foo_val));
k_sleep(1000);
sys_reboot(SYS_REBOOT_COLD);
}
struct settings_handler my_conf = {
.name = "foo",
.h_set = foo_settings_set
};
void main(void)
{
settings_subsys_init();
settings_register(&my_conf);
settings_load();
foo_val++;
settings_save_one("foo/bar", &foo_val, sizeof(foo_val));
printk("foo: %d\n", foo_val);
k_sleep(1000);
sys_reboot(SYS_REBOOT_COLD);
}
Example: Custom Backend Implementation
**************************************