diff options
Diffstat (limited to 'Documentation/nvme-wdc-id-ctrl.txt')
| -rw-r--r-- | Documentation/nvme-wdc-id-ctrl.txt | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/Documentation/nvme-wdc-id-ctrl.txt b/Documentation/nvme-wdc-id-ctrl.txt new file mode 100644 index 0000000..b62eb60 --- /dev/null +++ b/Documentation/nvme-wdc-id-ctrl.txt @@ -0,0 +1,67 @@ +nvme-wdc-id-ctrl(1) +=================== + +NAME +---- +nvme-wdc-id-ctrl - Send NVMe Identify Controller, return result and structure + +SYNOPSIS +-------- +[verse] +'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 |