.TH "nvme_ctrl_find" 9 "nvme_ctrl_find" "August 2024" "libnvme API manual" LINUX
.SH NAME
nvme_ctrl_find \- Locate an existing controller
.SH SYNOPSIS
.B "nvme_ctrl_t" nvme_ctrl_find
.BI "(nvme_subsystem_t s "  ","
.BI "const char *transport "  ","
.BI "const char *traddr "  ","
.BI "const char *trsvcid "  ","
.BI "const char *subsysnqn "  ","
.BI "const char *host_traddr "  ","
.BI "const char *host_iface "  ");"
.SH ARGUMENTS
.IP "s" 12
\fInvme_subsystem_t\fP object
.IP "transport" 12
Transport name
.IP "traddr" 12
Transport address
.IP "trsvcid" 12
Transport service identifier
.IP "subsysnqn" 12
Subsystem NQN
.IP "host_traddr" 12
Host transport address
.IP "host_iface" 12
Host interface name
.SH "DESCRIPTION"
Lookup a controller in \fIs\fP based on \fItransport\fP, \fItraddr\fP, \fItrsvcid\fP,
\fIsubsysnqn\fP, \fIhost_traddr\fP, and \fIhost_iface\fP. \fItransport\fP must be specified,
other fields may be required depending on the transport. Parameters set
to NULL will be ignored.

Unlike \fBnvme_lookup_ctrl\fP, this function does not create a new object if
an existing controller cannot be found.
.SH "RETURN"
Controller instance on success, NULL otherwise.