NCI over SPI protocol support

modulename: nci_spi.ko
configname: CONFIG_NFC_NCI_SPI

Linux Kernel Configuration
└─> Networking support
└─> NCI over SPI protocol support

In linux kernel since version 3.11 (release Date: 2013-09-02)  

NCI (NFC Controller Interface) is a communication protocol between
an NFC Controller (NFCC) and a Device Host (DH).

Say yes if you use an NCI driver that requires SPI link layer.

source code: