chip->write_register=candev->hwspecops->write_register;
chip->read_register=candev->hwspecops->read_register;
chip->spi_transfer=candev->hwspecops->spi_transfer;
+ chip->spi_async_transfer=candev->hwspecops->spi_async_transfer;
chip->spi_acquire_bus=candev->hwspecops->spi_acquire_bus;
chip->spi_release_bus=candev->hwspecops->spi_release_bus;