Block layer SG support v4 (EXPERIMENTAL)

modulename: bsg.ko

configname: CONFIG_BLK_DEV_BSG

Linux Kernel Configuration
└─>Enable the block layer
└─>Block layer SG support v4 (EXPERIMENTAL)
In linux kernel since version 2.6.23 (release Date: 2007-10-09)  
Saying Y here will enable generic SG (SCSI generic) v4 support
for any block device.

Unlike SG v3 (aka block/scsi_ioctl.c drivers/scsi/sg.c), SG v4
can handle complicated SCSI commands: tagged variable length cdbs
with bidirectional data transfers and generic request/response
protocols (e.g. Task Management Functions and SMP in Serial
Attached SCSI).

If unsure, say N.

source code:
depends
CONFIG_BLOCK
CONFIG_EXPERIMENTAL or CONFIG_SCSI

is depended by
CONFIG_BLK_DEV_BSGLIB