1 files changed, 115 insertions, 0 deletions
diff --git a/Documentation/nvme-ns-descs.1 b/Documentation/nvme-ns-descs.1
new file mode 100644
index 0000000..cddc126
--- /dev/null
+++ b/Documentation/nvme-ns-descs.1
@@ -0,0 +1,115 @@
+'\" t
+.\"     Title: nvme-ns-descs
+.\"    Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
+.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
+.\"      Date: 04/24/2020
+.\"    Manual: NVMe Manual
+.\"    Source: NVMe
+.\"  Language: English
+.\"
+.TH "NVME\-NS\-DESCS" "1" "04/24/2020" "NVMe" "NVMe Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+nvme-ns-descs \- Send NVMe Identify for a list of Namespace Identification Descriptor structure, return result and structure
+.SH "SYNOPSIS"
+.sp
+.nf
+\fInvme ns\-descs\fR <device> [\-\-namespace\-id=<nsid> | \-n <nsid>]
+                        [\-\-raw\-binary | \-b]
+                        [\-\-output\-format=<fmt> | \-o <fmt>]
+.fi
+.SH "DESCRIPTION"
+.sp
+For the NVMe device given, sends an identify for a list of namespace identification descriptor structures command and provides the result and returned structure\&.
+.sp
+The <device> parameter is mandatory and may be either the NVMe character device (ex: /dev/nvme0), or a namespace block device (ex: /dev/nvme0n1)\&. If the character device is given, the \*(Aq\-\-namespace\-id\*(Aq option is mandatory, otherwise it will use the ns\-id of the namespace for the block device you opened\&. For block devices, the ns\-id used can be overridden with the same option\&.
+.sp
+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\&.
+.SH "OPTIONS"
+.PP
+\-n <nsid>, \-\-namespace\-id=<nsid>
+.RS 4
+Retrieve the identify namespace identification descriptor structure for the given nsid\&. This is required for the character devices, or overrides the block nsid if given\&.
+.RE
+.PP
+\-b, \-\-raw\-binary
+.RS 4
+Print the raw buffer to stdout\&. Structure is not parsed by program\&.
+.RE
+.PP
+\-o <format>, \-\-output\-format=<format>
+.RS 4
+Set the reporting format to
+\fInormal\fR,
+\fIjson\fR, or
+\fIbinary\fR\&. Only one output format can be used at a time\&.
+.RE
+.SH "EXAMPLES"
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+If using the character device or overriding namespace #2:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+# nvme ns\-descs /dev/nvme0 \-n 1
+# nvme ns\-descs /dev/nvme0n1 \-n 2
+# nvme ns\-descs /dev/nvme0 \-\-namespace\-id=1
+.fi
+.if n \{\
+.RE
+.\}
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+Have the program return the raw structure in binary:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+# nvme ns\-descs /dev/nvme0n1 \-\-raw\-binary > ns_descs\&.raw
+# nvme ns\-descs /dev/nvme0n1 \-b > ns_descs\&.raw
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+It is probably a bad idea to not redirect stdout when using this mode\&.
+.RE
+.SH "NVME"
+.sp
+Part of the nvme\-user suite