Objective Development Forums

Greetings. I know there is a firmware for USB-ASP programmer to make it STK500-compatible.
So I'm interested, is there such a firmware for PROTTOSS AVR910 USB-programmer?
Schematics: http://prottoss.com/projects/AVR910.usb.prog/avr910_usb_programmer.htm

It should be possible to tune the AVR-Doper firmware for this hardware. Have not looked closely, but it seems to be very similar to USBasp. See the USBasp section in hardware.h.