Skip to main content

Non-Volatile Memory (nvmem)

Non-volatile memory.

Device Type​

DEVICE_TYPE_NVMEM

Structure​

struct nvmem_t {
    char * name;
    uint64_t (*capacity)(struct nvmem_t * nvmem);
    int64_t (*read)(struct nvmem_t * nvmem, uint8_t * buf, uint64_t offset, uint64_t count);
    int64_t (*write)(struct nvmem_t * nvmem, uint8_t * buf, uint64_t offset, uint64_t count);
    void * priv;
};

Key API​

FunctionDescription
search_nvmem(name)Find NVMEM device by name
register_nvmem(nvmem, drv)Register NVMEM device
unregister_nvmem(nvmem)Unregister NVMEM device
nvmem_capacity(nvmem)Get capacity
nvmem_read(nvmem, buf, offset, count)Read data
nvmem_write(nvmem, buf, offset, count)Write data

Description​

Non-volatile memory (EEPROM, FRAM) interface. Provides byte-addressable read and write operations for storing configuration data, calibration values, and device identity information.