如何访问USB驱动程序直接发送命令？ C＃

Question

I´m currently developing software to communicate with the TM-T88V Epson printer. Everything works fine via serial ports, however, I also need to be able to send and receive commands via USB (and later ethernet). I've found that this is considerably more complex than serial ports, there is no native library for controlling USB ports.

Most questions and tutorials on this topic refer to printing via System.Drawing.Printing, or using external downloaded libraries to access the bus. Also, there are a lot of references to using some of the System.Management classes to search for events and properties of the USB ports, quite useful, but no message interchange. Nonetheless, what I think would be the best is to use the printer driver if possible and use it for this task, I guess that's what the driver is for... I'm definitely not an expert and I've only used serial communication for whatever reason through my major.

Basically, I want to detect, select, send and receive messages from a USB port. If the printer driver is up for this task great, if not whatever resource is useful. Note that I already have all the messages and message structure.

Answer 1

Here is very simple code to get started :

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO.Ports;


namespace ConsoleApplication108
{
    class Program
    {
       static void Main(string[] args)
        {
            string[] names = SerialPort.GetPortNames();

        }
    }

}