case GOOGLE_RAIDEN_SPI_PROTOCOL_V1:
			/*
			 * Protocol V1 is supported by adjusting the max data
			 * read and write sizes which results in no continue packets.
			 */
			spi_config->command = send_command_v1;
			ctx_data->max_spi_write_count = SPI_TRANSFER_V1_MAX;
			ctx_data->max_spi_read_count = SPI_TRANSFER_V1_MAX;
			break;
		default:
			msg_pdbg("Raiden: Unknown USB SPI protocol version = %d",
			         ctx_data->protocol_version);
			return USB_SPI_HOST_INIT_FAILURE;