config NFC_NCI depends on NFC tristate "NCI protocol support" default n help NCI (NFC Controller Interface) is a communication protocol between an NFC Controller (NFCC) and a Device Host (DH). Say Y here to compile NCI support into the kernel or say M to compile it as module (nci). config NFC_NCI_SPI depends on NFC_NCI && SPI select CRC_CCITT bool "NCI over SPI protocol support" default n help 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.