api/c/nvs_8h_source.html

/*

 * Copyright (C) 2026 Kamil Lulko <kamil.lulko@gmail.com>

 *

 * SPDX-License-Identifier: GPL-3.0-or-later

 *

 * This file is part of oveRTOS.

 */


#ifndef OVE_NVS_H

#define OVE_NVS_H


#include "ove/types.h"

#include "ove_config.h"


#ifdef __cplusplus

extern "C" {

#endif


#ifdef CONFIG_OVE_NVS


int  ove_nvs_init(void);


void ove_nvs_deinit(void);


int  ove_nvs_read(const char *key, void *buf, size_t buf_len,

          size_t *out_len);


int  ove_nvs_write(const char *key, const void *data, size_t len);


int  ove_nvs_erase(const char *key);


#else /* !CONFIG_OVE_NVS */


static inline int ove_nvs_init(void) { return OVE_ERR_NOT_SUPPORTED; }

static inline void ove_nvs_deinit(void) { }

static inline int ove_nvs_read(const char *key, void *buf, size_t buf_len, size_t *out_len) { (void)key; (void)buf; (void)buf_len; (void)out_len; return OVE_ERR_NOT_SUPPORTED; }

static inline int ove_nvs_write(const char *key, const void *data, size_t len) { (void)key; (void)data; (void)len; return OVE_ERR_NOT_SUPPORTED; }

static inline int ove_nvs_erase(const char *key) { (void)key; return OVE_ERR_NOT_SUPPORTED; }


#endif /* CONFIG_OVE_NVS */


#ifdef __cplusplus

}

#endif


 /* end of ove_nvs group */

#endif /* OVE_NVS_H */

ove_nvs_write
int ove_nvs_write(const char *key, const void *data, size_t len)
Write or update a value in non-volatile storage.

ove_nvs_read
int ove_nvs_read(const char *key, void *buf, size_t buf_len, size_t *out_len)
Read a value from non-volatile storage by key.

ove_nvs_erase
int ove_nvs_erase(const char *key)
Delete a key-value pair from non-volatile storage.

ove_nvs_deinit
void ove_nvs_deinit(void)
Deinitialise the non-volatile storage subsystem.

ove_nvs_init
int ove_nvs_init(void)
Initialise the non-volatile storage subsystem.

OVE_ERR_NOT_SUPPORTED
#define OVE_ERR_NOT_SUPPORTED
The requested feature is not supported by the active backend.
Definition types.h:38