OSD Upper Level driver

modulename: osd.ko


Linux Kernel Configuration
└─>Device Drivers
└─>SCSI device support
└─>OSD Upper Level driver
In linux kernel since version 2.6.30 (release Date: 2009-06-09)  
Build a SCSI upper layer driver that exports /dev/osdX devices
to user-mode for testing and controlling OSD devices. It is also
needed by exofs, for mounting an OSD based file system.

source code: