nvme-primary-ctrl-caps - Send identify Primary Controller Caps, return result and structure
Contents
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.
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
Name
nvme-primary-ctrl-caps - Send identify Primary Controller Caps, return result and structure
Nvme
Part of the nvme-user suite
NVMe 02/16/2025 NVME-PRIMARY-CTRL(1)
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.
Synopsis
nvmeprimary-ctrl-caps <device> [--output-format=<fmt> | -o <fmt>] [--verbose | -v]
