driver

type Conn interface {
	// Tx first writes w (if not nil), then reads len(r)
	// bytes from device into r (if not nil) in a single
	// I2C transaction.
	Tx(w, r []byte) error

	// Close closes the connection.
	Close() error
}

type Opener interface {
	Open(addr int, tenbit bool) (Conn, error)
}