Lines Matching +full:flash +full:- +full:id

1 /*  NVS: non volatile storage in flash
5  * SPDX-License-Identifier: Apache-2.0
20  * @brief Non-volatile Storage (NVS)
21  * @defgroup nvs Non-volatile Storage (NVS)
30  * @brief Non-volatile Storage Data Structures
31  * @defgroup nvs_data_structures Non-volatile Storage Data Structures
37  * @brief Non-volatile Storage File system structure
40 	 /** File system offset in flash **/
44 	 * - high 2 bytes correspond to the sector
45 	 * - low 2 bytes are the offset in the sector
50 	/** File system is split into sectors, each sector must be multiple of erase-block-size */
58 	/** Flash device runtime structure */
60 	/** Flash memory parameters structure */
72  * @brief Non-volatile Storage APIs
73  * @defgroup nvs_high_level_api Non-volatile Storage APIs
79  * @brief Mount an NVS file system onto the flash device specified in @p fs.
83  * @retval -ERRNO errno code if error
88  * @brief Clear the NVS file system from flash.
92  * @retval -ERRNO errno code if error
105  * @param id Id of the entry to be written
111  * to flash, thus 0 is returned. On error, returns negative value of errno.h defined error codes.
113 ssize_t nvs_write(struct nvs_fs *fs, uint16_t id, const void *data, size_t len);
119  * @param id Id of the entry to be deleted
121  * @retval -ERRNO errno code if error
123 int nvs_delete(struct nvs_fs *fs, uint16_t id);
129  * @param id Id of the entry to be read
138 ssize_t nvs_read(struct nvs_fs *fs, uint16_t id, void *data, size_t len);
144  * @param id Id of the entry to be read
154 ssize_t nvs_read_hist(struct nvs_fs *fs, uint16_t id, void *data, size_t len, uint16_t cnt);
163  * especially on spi flash. On error, returns negative value of errno.h defined error codes.
182  * It breaks the aim of the NVS to avoid any unnecessary flash erases.
183  * Using this routine extensively can result in premature failure of the flash device.