CONFIG_SCM_BUS is not available for thedefaultarchitecture x86.
Result is shown for architecture s390
SCM bus driver
modulename: scm.ko
configname: CONFIG_SCM_BUS
Linux Kernel Configuration
└─>I/O subsystem
└─>SCM bus driver
In linux kernel since version 3.1 (release Date: 2011-10-24)
Bus driver for Storage Class Memory.