Further usages of the sdparm utility:
       sdparm --command=CMD [-hex] [--long] [--readonly] [--verbose]
              DEVICE [DEVICE...]

       sdparm --inquiry [--all] [--flexible] [--hex]
              [--page=PG[,SPG]] [--quiet] [--readonly] [--transport=TN]
              [--vendor=VN] [--verbose] DEVICE [DEVICE...]

       sdparm --enumerate [--all] [--inquiry] [--long] [--page=PG[,SPG]]
              [--transport=TN] [--vendor=VN]

       sdparm --inhex=FN [--all] [--flexible] [--hex] [--inquiry]
              [--long] [--pdt=PDT] [--raw] [--six] [--transport=TN]
              [--vendor=VN]

       sdparm --wscan [--verbose]

       sdparm [--help] [--version]

  where the additional options are:
    --command=CMD | -C CMD    perform CMD (e.g. 'eject')
    --enumerate | -e      list known pages and fields (ignore DEVICE)
    --help | -h           print out usage message
    --inhex=FN|-I FN      read ASCII hex from file FN instead of DEVICE;
                          if used with -HH then read binary from FN
    --inquiry | -i        output INQUIRY VPD page(s) (def: mode page(s))
                          use --page=PG for VPD number (-1 for std inq)
    --pdt=DT|-P DT        peripheral Device Type (e.g. 0->disk)
    --raw | -R            FN (in '-I FN') assumed to be binary
    --version | -V        print version string and exit
    --wscan | -w          windows scan for device names

The available commands will be listed when a invalid CMD is given
(e.g. '--command=xxx'). VPD page(s) are read and decoded in the
'--inquiry DEVICE' form. The '--enumerate' form outputs internal data
about mode or VPD pages (and ignores DEVICE if given). The '--inhex'
form reads data from the the file FN (or stdin) and decodes it as a
mode or VPD page response. The '--wscan' form is for listing Windows
devices and is only available on Windows machines.