import fcntl

MAC_ADDRESS_SIZE = 6
DEVICE_PATH = "/dev/network_card_pci_driver_mac"
MY_IOCTL_GET_MAC_ADDRESS = 0xed696301

if __name__ == "__main__":
    device_file = open(DEVICE_PATH, "rb")

    mac_address_buffer = bytearray(MAC_ADDRESS_SIZE)

    fcntl.ioctl(device_file, MY_IOCTL_GET_MAC_ADDRESS, mac_address_buffer)

    print(mac_address_buffer.hex())

    device_file.close()