How to use USBasp as USB to SPI converter?

Question

Electronics

I want to use the USBASP programmer as a USB-SPI converter. He is what they are, right?
And if the libraries are interlayers between the driver and SPI? (so as not to communicate directly with the driver)
Preferably in Delphi (Win32) and/or C++ (Win32/Linux).
Thank you.

Answer 1

The usbasp protocol has the necessary instructions:

#define USBASP_FUNC_TPI_RAWREAD 13
#define USBASP_FUNC_TPI_RAWWRITE 14

Drivers for the programmer are on github
An example of communication with the programmer can be found in the avrdude sources , the archive contains the usbasp.c file