Usage: sg_map26 [--dev_dir=DIR] [--given_is=0..1] [--help] [--result=0..3]
                [--symlink] [--verbose] [--version] DEVICE
  where:
    --dev_dir=DIR | -d DIR    search in DIR for resulting special
                            (def: directory of DEVICE or '/dev')
    --given_is=0..1 | -g 0..1    variety of given DEVICE
                                 0->block or char special (or symlink to)
                                   1->sysfs device, 'dev' or parent
    --help | -h       print out usage message
    --result=0..3 | -r 0..3    variety of file(s) to find
                               0->mapped block or char special(def)
                               1->mapped sysfs path
                               2->matching block or char special
                               3->matching sysfs path
    --symlink | -s    symlinks to special included in result
    --verbose | -v    increase verbosity of output
    --version | -V    print version string and exit

Maps SCSI device node to corresponding generic node (and vv). Users may
find the lsscsi utility more convenient as it doesn't need root
permissions.