Uz Windows DDK dolazi i primer drajvera - BulkUSB (DDKdir\src\wdm\usb\bulkusb) - ne radi ništa pametno, no komunicira na niskom nivou sa uređajima (šalje "sirove" podatke). Može poslužiti kao osnova za dalje.

//// The USB CDC API that CCS provides will create a virtual UART ////
//// port. USB CDC drivers are included with most versions of ////
//// Microsoft Windows, and when properly loaded will create a COMx ////
//// port from which you can write and read to your PIC device ////
//// like any serial device that has a COMx port. ////
//// ////
//// This example creates a USB<->UART converter. Open ////
//// Hyperterminal to COM1 (or whatever COM port is your usual RS232 ////
//// serial COM port). Plug the PIC to USB. Open Hypertimernal to ////
//// the new COM port that is the USB<->UART COM port (for this ////
//// example say it is COM2). Typing a character in COM1 will cause ////
//// it to be sent out COM2, and vice-versa. ////