Function esp_idf_sys::wl_write

source ·
pub unsafe extern "C" fn wl_write(
    handle: wl_handle_t,
    dest_addr: usize,
    src: *const c_void,
    size: usize
) -> esp_err_t
Expand description

@brief Write data to the WL storage

Before writing data to flash, corresponding region of flash needs to be erased. This can be done using wl_erase_range function.

@param handle WL handle that are related to the partition @param dest_addr Address where the data should be written, relative to the beginning of the partition. @param src Pointer to the source buffer. Pointer must be non-NULL and buffer must be at least ‘size’ bytes long. @param size Size of data to be written, in bytes.

@note Prior to writing to WL storage, make sure it has been erased with wl_erase_range call.

@return - ESP_OK, if data was written successfully; - ESP_ERR_INVALID_ARG, if dst_offset exceeds partition size; - ESP_ERR_INVALID_SIZE, if write would go out of bounds of the partition; - or one of error codes from lower-level flash driver.