The ZY1000 uses OpenOCD, but as a whole, provides a finished professional solution. There are no drivers as the ZY1000 talks to the developer PC via TCP/IP, it comes with a web GUI and we refer you to USI, rather than community, support.
The ZY1000 has some unfair advantages over USB solutions, since OpenOCD runs on the ZY1000 and talks directly to an FPGA with a hardware accelerated JTAG master, the result is very low latency and excellent performance for larger downloads.
If you have a target you want supported in OpenOCD, get in touch with USI to learn how we can help you.
Hardware Debuggers (Episode 29) Interview with Fahd Abidi Download Here