NAME

       nvme-wdc-id-ctrl - Send NVMe Identify Controller, return result and structure

SYNOPSIS

       nvme wdc id-ctrl <device> [--vendor-specific | -v] [--raw-binary | -b]
                               [--human-readable | -H]
                               [--output-format=<fmt> | -o <fmt>]

DESCRIPTION

       For the NVMe device given, sends an identify controller command and provides the result and returned
       structure.

       The <device> parameter is mandatory and may be either the NVMe character device (ex: /dev/nvme0), or a
       namespace block device (ex: /dev/nvme0n1).

       This will only work on WDC devices supporting this feature. Results for any other device are undefined.

       On success, the structure may be returned in one of several ways depending on the option flags; the
       structure may be parsed by the program or the raw buffer may be printed to stdout.

       If having the program decode the output for readability, this version will decode WDC vendor unique
       portions of the structure.

OPTIONS

       -b, --raw-binary
           Print the raw buffer to stdout. Structure is not parsed by program. This overrides the vendor
           specific and human readable options.

       -v, --vendor-specific
           In addition to parsing known fields, this option will dump the vendor specific region of the
           structure in hex with ascii interpretation.

       -H, --human-readable
           This option will parse and format many of the bit fields into human-readable formats.

       -o <fmt>, --output-format=<fmt>
           Set the reporting format to normal, json, or binary. Only one output format can be used at a time.

EXAMPLES

       •   Has the program interpret the returned buffer and display the known fields in a human readable
           format:

               # nvme wdc id-ctrl /dev/nvme0

NVME

       Part of the nvme-user suite

NVMe                                               02/16/2025                                NVME-WDC-ID-CTRL(1)