SPI slave protocol handlers

configname: CONFIG_SPI_SLAVE

Linux Kernel Configuration
└─>Device Drivers
└─>SPI support
└─>SPI slave protocol handlers
In linux kernel since version 3.10 (release Date: 2013-06-30)  
If your system has a slave-capable SPI controller, you can enable
slave protocol handlers.

depends
CONFIG_SPI

is selected by
CONFIG_OLPC_XO175_EC

is depended by
CONFIG_SPI_STM32