nvme-primary-ctrl-caps

NVME-PRIMARY-CTRL(1) NVMe Manual NVME-PRIMARY-CTRL(1)

NAME

   nvme-primary-ctrl-caps - Send identify Primary Controller Caps, return result and structure

SYNOPSIS

   nvme primary-ctrl-caps <device> [--output-format=<fmt> | -o <fmt>] [--verbose | -v]

DESCRIPTION

   For the NVMe device given, sends an identify primary Controller caps 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).

   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.

OPTIONS

   -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.

   -v, --verbose
       Increase the information detail in the output.

EXAMPLES

   •   Get Primary Ctrl Caps of the device in default format

           # nvme primary-ctrl-caps /dev/nvme0

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

           # nvme primary-ctrl-caps /dev/nvme0 --human-readable
           # nvme primary-ctrl-caps /dev/nvme0 -H

NVME

   Part of the nvme-user suite

NVMe 05/02/2025 NVME-PRIMARY-CTRL(1)