Index: libconfig.3.in
==================================================================
--- libconfig.3.in
+++ libconfig.3.in
@@ -14,11 +14,20 @@
 .BI "lc_err_t lc_geterrno(void);"
 
 .BI "char *lc_geterrstr(void);"
 
 .SH DESCRIPTION
-Libconfig is a library to provide easy access to configuration data in a consistent and logical manner.
+Libconfig is a library to provide easy access to configuration data in a consistent and logical manner.  Variables (registered through
+.BR lc_register_var (3)
+or
+.BR lc_register_callback (3))
+are processed with the
+.BR lc_process (3)
+function.  Errors can be examined through
+.BR lc_geterrno (3)
+and
+.BR lc_geterrstr (3).
 
 .SH EXAMPLE
 .nf
 #include <libconfig.h>
 #include <stdlib.h>