Hello there.. I'm working on my custum board based on SEQUOIA. I'd like to use SPI & IIC in my linux application. Where should I start?? Do I have to make my own driver to read & write via SPI & IIC?? Or, are there any usefull drivers in the kernel or somewhere?? If it is, how can I use them? If you have sample code, would you give me them?? Best regards