CRC7 functions

modulename: crc7.ko

configname: CONFIG_CRC7

Linux Kernel Configuration
└─>Library routines
└─>CRC7 functions
In linux kernel since version 2.6.23 (release Date: 2007-10-09)  
This option is provided for the case where no in-kernel-tree
modules require CRC7 functions, but a module built outside
the kernel tree does. Such modules that use library CRC7
functions require M here.

source code: