SCSI Enclosure Support

modulename: ses.ko

configname: CONFIG_SCSI_ENCLOSURE

Linux Kernel Configuration
└─>Device Drivers
└─>SCSI device support
└─>SCSI Enclosure Support
In linux kernel since version 2.6.25 (release Date: 2008-04-16)  
Enclosures are devices sitting on or in SCSI backplanes that
manage devices. If you have a disk cage, the chances are that
it has an enclosure device. Selecting this option will just allow
certain enclosure conditions to be reported and is not required.

source code: