diff --git a/goutmp.go b/goutmp.go
index dd8303a..bf325f5 100644
--- a/goutmp.go
+++ b/goutmp.go
@@ -84,10 +84,12 @@ import (
   "time"
 )
 
+// UtmpEntry wraps the C struct utmpx
 type UtmpEntry struct {
   entry   C.struct_utmpx
 }
 
+// Put a username and the originating host/IP to utmp
 func Put_utmp(user string, host string) (UtmpEntry) {
   var entry UtmpEntry
 
@@ -95,10 +97,12 @@ func Put_utmp(user string, host string) (UtmpEntry) {
   return entry
 }
 
+// Remove a username/host entry from utmp
 func Unput_utmp(entry UtmpEntry) {
   C.unpututmp(&entry.entry)
 }
 
+// Put the login app, username and originating host/IP to lastlog
 func Put_lastlog_entry(app string, usr string, host string) {
   u, e := user.Lookup(usr)
   if e != nil {