'\" t
.TH "UDEV_MONITOR_NEW_FROM_NETLINK" "3" "" "systemd 256.7" "udev_monitor_new_from_netlink"
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.SH "NAME"
udev_monitor_new_from_netlink, udev_monitor_ref, udev_monitor_unref \- Create, acquire and release a udev monitor object
.SH "SYNOPSIS"
.sp
.ft B
.nf
#include <libudev\&.h>
.fi
.ft
.HP \w'struct\ udev_monitor\ *udev_monitor_new_from_netlink('u
.BI "struct udev_monitor *udev_monitor_new_from_netlink(struct\ udev\ *" "udev" ", const\ char\ *" "name" ");"
.HP \w'struct\ udev_monitor\ *udev_monitor_ref('u
.BI "struct udev_monitor *udev_monitor_ref(struct\ udev_monitor\ *" "udev_monitor" ");"
.HP \w'struct\ udev_monitor\ *udev_monitor_unref('u
.BI "struct udev_monitor *udev_monitor_unref(struct\ udev_monitor\ *" "udev_monitor" ");"
.SH "RETURN VALUE"
.PP
On success,
\fBudev_monitor_new_from_netlink()\fR
returns a pointer to the allocated udev monitor\&. On failure,
\fBNULL\fR
is returned\&.
\fBudev_monitor_ref()\fR
returns the argument that it was passed, unmodified\&.
\fBudev_monitor_unref()\fR
always returns
\fBNULL\fR\&.
.SH "HISTORY"
.PP
\fBudev_monitor_new_from_netlink()\fR,
\fBudev_monitor_ref()\fR, and
\fBudev_monitor_unref()\fR
were added in version 221\&.
.SH "SEE ALSO"
.PP
\fBudev_new\fR(3), \fBudev_device_new_from_syspath\fR(3), \fBudev_enumerate_new\fR(3), \fBudev_monitor_filter_update\fR(3), \fBudev_monitor_receive_device\fR(3), \fBudev_list_entry\fR(3), \fBsystemd\fR(1)