Method transfer

modules/io/spi/spi.js:26–26

(buffer)

	read(count) { return native("xs_spi_read").call(this, count); }
	write(buffer) { return native("xs_spi_write").call(this, buffer); }
	transfer(buffer) { return native("xs_spi_transfer").call(this, buffer); }
	flush(deselect) { return native("xs_spi_flush").call(this, deselect); }

	get format() {