+.RS 4
+Signal udevd to enable the execution of events\.
+.RE
+.PP
+\fBreload_rules\fR
+.RS 4
+Signal udevd to reload the rules from the config\.
+.RE
+.PP
+\fBenv \fR\fB\fIvar\fR\fR\fB=\fR\fB\fIvalue\fR\fR
+.RS 4
+Set global variable\.
+.RE
+.PP
+\fBmax_childs\fR
+.RS 4
+Set the maximum number of events, udevd will handle at the same time\.
+.RE
+.PP
+\fBmax_childs_running\fR
+.RS 4
+Set the maximum number of events, which are allowed to run at the same time\.
+.RE
+.PP
+\fBhelp\fR
+.RS 4
+Print help text\.
+.RE