Usage: sg_rtpg   [--decode] [--extended] [--help] [--hex] [--raw] [--readonly]
                 [--verbose] [--version] DEVICE
  where:
    --decode|-d        decode status and asym. access state
    --extended|-e      use extended header parameter data format
    --help|-h          print out usage message
    --hex|-H           print out response in hex
    --raw|-r           output response in binary to stdout
    --readonly|-R      open DEVICE read-only (def: read-write)
    --verbose|-v       increase verbosity
    --version|-V       print version string and exit

Performs a SCSI REPORT TARGET PORT GROUPS command