USB FTDI Serial Converters Driver-Instructions to install new driver You may require the sources matching the current kernel to be installed on your system (and built). There are many helpfull websites that can assist you with this step and it

在FPGA外扩用FT2232 实现UART TO USB 2.0 的通信。-The FT2232H is a USB2.0 Hi-Speed USB Device to FIFO IC. This core allows the use of this chip with an FGPA design in high speed FT245 style synchronous FIFO mode. Data rates up to 25 mbytes/s can be achieve