CONFIG_EADM_SCH is not available for thedefaultarchitecture x86.
Result is shown for architecture s390

Support for EADM subchannels

modulename: eadm_sch.ko

configname: CONFIG_EADM_SCH

Linux Kernel Configuration
└─>I/O subsystem
└─>Support for EADM subchannels
In linux kernel since version 3.1 (release Date: 2011-10-24)  
This driver allows usage of EADM subchannels. EADM subchannels act
as a communication vehicle for SCM increments.

To compile this driver as a module, choose M here: the
module will be called eadm_sch.

source code:
depends
CONFIG_SCM_BUS