I2C / SPI drivers for the Raspberry Pi

[Duss Pirmin]

Hello

I have pledged for one of this E-Paper displays for the Raspberry Pi
https://www.kickstarter.com/projects/pisupply/papirus-the-epaper-screen-hat-for-your-raspberry-p

To control this SPI, I2C and GPIO are needed.

Are there already drivers for this interfaces? Otherwise I would be  
willing to implement this drivers and resource multiplexers.

Best regrars
Pirmin