Arduino Usb Data Transfer. But it is a slow process. You are free to use the the arduino ide serial monitor to test and debug your sketch.
One more question. Go to the device manager and find the port number that is connected to the converter. My data transfer requirement is sending 4016 bit data 4000 times a second which translates to around 256mbits per second.
One more question.
From now on please connect the arduino via usb to the raspberry pi. Transfer via icsp these are the 2x3 grid of pins on your arduino. Here the usb connector will depend on which version you have. For arduino you will use the usb port that you use to upload code from your computer with the arduino ide to your board.