diff --git a/include/seqmid.h b/include/seqmid.h
index 6caddf27..d47d3646 100644
--- a/include/seqmid.h
+++ b/include/seqmid.h
@@ -35,11 +35,13 @@ void snd_seq_ev_schedule_real(snd_seq_event_t *ev, int q, int relative,
 /* set event priority (optional) */
 void snd_seq_ev_set_priority(snd_seq_event_t *ev, int high_prior);
 
-/* set event data type - following two macros are exclusive */
+/* set event data type - following three macros are exclusive */
   /* fixed size event */
 void snd_seq_ev_set_fixed(snd_seq_event_t *ev);
   /* variable size event */
 void snd_seq_ev_set_variable(snd_seq_event_t *ev, int len, void *ptr);
+  /* variable size event - user memory space */
+void snd_seq_ev_set_varusr(snd_seq_event_t *ev, int len, void *ptr);
 
 /* set queue control event data */
 /* destination is overwritten to Timer port (0:0) */
diff --git a/src/seq/seqmid.c b/src/seq/seqmid.c
index 2d0c68ac..dcef2223 100644
--- a/src/seq/seqmid.c
+++ b/src/seq/seqmid.c
@@ -81,6 +81,15 @@ void snd_seq_ev_set_variable(snd_seq_event_t *ev, int len, void *ptr)
 	ev->data.ext.ptr = ptr;
 }
 
+/* set varusr data */
+void snd_seq_ev_set_varusr(snd_seq_event_t *ev, int len, void *ptr)
+{
+	ev->flags &= ~SND_SEQ_EVENT_LENGTH_MASK;
+	ev->flags |= SND_SEQ_EVENT_LENGTH_VARUSR;
+	ev->data.ext.len = len;
+	ev->data.ext.ptr = ptr;
+}
+
 
 /* use or unuse a queue */
 int snd_seq_use_queue(snd_seq_t *seq, int q, int use)