Function esp_idf_sys::system_efuse_read_mac

pub unsafe extern "C" fn system_efuse_read_mac(mac: *mut u8) -> esp_err_t

@brief Read hardware MAC address.

Function has been renamed to esp_efuse_mac_get_default. This name will be removed in a future release.

@param mac hardware MAC address, length: 6 bytes. @return ESP_OK on success