.TH "libnvmf_registry_retrieve" 9 "libnvmf_registry_retrieve" "October 2026" "libnvme API manual" LINUX
.SH NAME
libnvmf_registry_retrieve \- Read an attribute from a controller's registry entry
.SH SYNOPSIS
.B "int" libnvmf_registry_retrieve
.BI "(struct libnvme_global_ctx *ctx "  ","
.BI "const char *device "  ","
.BI "const char *attr "  ","
.BI "char **value "  ");"
.SH ARGUMENTS
.IP "ctx" 12
libnvme global context; must not be NULL
.IP "device" 12
Kernel device name (e.g. "nvme3")
.IP "attr" 12
Attribute name to retrieve (e.g. "owner")
.IP "value" 12
On success, set to a newly allocated string with the attribute
value.  The caller must free this string.
.SH "RETURN"
0 on success, -ENOENT if the controller is not registered or the
attribute is not present, -ENOMEM on allocation failure, negative errno
from underlying system calls otherwise.