.TH "libnvmf_context_set_devid_file" 9 "libnvmf_context_set_devid_file" "September 2026" "libnvme API manual" LINUX
.SH NAME
libnvmf_context_set_devid_file \- Set devid file for context
.SH SYNOPSIS
.B "int" libnvmf_context_set_devid_file
.BI "(struct libnvmf_context *fctx "  ","
.BI "const char *devid_file "  ");"
.SH ARGUMENTS
.IP "fctx" 12
Fabrics context
.IP "devid_file" 12
Path to the output file
.SH "DESCRIPTION"
Configure a file that \fBlibnvmf_connect\fP uses to record the
kernel-assigned device name (for example, "nvme0").

If the controller is already connected, the existing device name is
written. Otherwise, the device name is written after the controller is
connected.

The output file is created before attempting the connection. If the
file cannot be created, for example because the parent directory does
not exist, \fBlibnvmf_connect\fP fails without attempting the connection.

This is intended for applications that need to identify the device
associated with a connection, for example to disconnect it later.
.SH "RETURN"
0 on success, negative error code otherwise.