Method: NXT::Interface::Usb#connect

Defined in:
lib/nxt/interface/usb.rb

#connect ⇒ Object

Raises:



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# File 'lib/nxt/interface/usb.rb', line 19

def connect
  @usb_context = LIBUSB::Context.new
  @dev = @usb_context.devices(idVendor: ID_VENDOR_LEGO, idProduct: ID_PRODUCT_NXT).first

  raise UsbConnectionError, 'Could not find NXT attached as USB device' if @dev.nil?

  @connection = @dev.open
  @connection.claim_interface(INTERFACE)

  @connection
end