How to enable SPI on kernel 4.1.2 and load QCA driver?

Hello everybody. I am new in beaglebone world. I try to connect beaglebone black with QCA7000 chip over SPI interface. In kernel 4.1.2 there is a qca driver. It already loads (I can see it using dmesg). The question is what is next? How to get it working together. I found an example in internet. But I have no idea how to work with this files. Please if you have any idea, let me know.

Best regards