[−][src]Function esp_idf_bindgen::nvs_erase_key
pub unsafe extern "C" fn nvs_erase_key(
handle: nvs_handle_t,
key: *const c_char
) -> esp_err_t
@brief Erase key-value pair with given key name.
Note that actual storage may not be updated until nvs_commit function is called.
@param[in] handle Storage handle obtained with nvs_open. Handles that were opened read only cannot be used.
@param[in] key Key name. Maximal length is determined by the underlying implementation, but is guaranteed to be at least 15 characters. Shouldn't be empty.
@return - ESP_OK if erase operation was successful - ESP_ERR_NVS_INVALID_HANDLE if handle has been closed or is NULL - ESP_ERR_NVS_READ_ONLY if handle was opened as read only - ESP_ERR_NVS_NOT_FOUND if the requested key doesn't exist - other error codes from the underlying storage driver