diff --git a/include/seq.h b/include/seq.h
index 4f03df43..2eee95a6 100644
--- a/include/seq.h
+++ b/include/seq.h
@@ -318,6 +318,7 @@ int snd_seq_port_info_get_timestamp_real(const snd_seq_port_info_t *info);
 int snd_seq_port_info_get_timestamp_queue(const snd_seq_port_info_t *info);
 int snd_seq_port_info_get_direction(const snd_seq_port_info_t *info);
 int snd_seq_port_info_get_ump_group(const snd_seq_port_info_t *info);
+int snd_seq_port_info_get_ump_is_midi1(const snd_seq_port_info_t *info);
 
 void snd_seq_port_info_set_client(snd_seq_port_info_t *info, int client);
 void snd_seq_port_info_set_port(snd_seq_port_info_t *info, int port);
@@ -334,6 +335,7 @@ void snd_seq_port_info_set_timestamp_real(snd_seq_port_info_t *info, int realtim
 void snd_seq_port_info_set_timestamp_queue(snd_seq_port_info_t *info, int queue);
 void snd_seq_port_info_set_direction(snd_seq_port_info_t *info, int direction);
 void snd_seq_port_info_set_ump_group(snd_seq_port_info_t *info, int ump_group);
+void snd_seq_port_info_set_ump_is_midi1(snd_seq_port_info_t *info, int is_midi1);
 
 int snd_seq_create_port(snd_seq_t *handle, snd_seq_port_info_t *info);
 int snd_seq_delete_port(snd_seq_t *handle, int port);
diff --git a/include/sound/uapi/asequencer.h b/include/sound/uapi/asequencer.h
index 923dfddd..b3e9df58 100644
--- a/include/sound/uapi/asequencer.h
+++ b/include/sound/uapi/asequencer.h
@@ -477,6 +477,8 @@ struct snd_seq_remove_events {
 #define SNDRV_SEQ_PORT_FLG_TIMESTAMP	(1<<1)
 #define SNDRV_SEQ_PORT_FLG_TIME_REAL	(1<<2)
 
+#define SNDRV_SEQ_PORT_FLG_IS_MIDI1	(1<<3)	/* Keep MIDI 1.0 protocol */
+
 /* port direction */
 #define SNDRV_SEQ_PORT_DIR_UNKNOWN	0
 #define SNDRV_SEQ_PORT_DIR_INPUT	1
diff --git a/src/Versions.in.in b/src/Versions.in.in
index 90849277..298e610c 100644
--- a/src/Versions.in.in
+++ b/src/Versions.in.in
@@ -209,6 +209,8 @@ ALSA_1.2.13 {
     @SYMBOL_PREFIX@snd_seq_queue_tempo_get_tempo_base;
     @SYMBOL_PREFIX@snd_seq_queue_tempo_set_tempo_base;
     @SYMBOL_PREFIX@snd_seq_has_tempo_base;
+    @SYMBOL_PREFIX@snd_seq_port_info_get_ump_is_midi1;
+    @SYMBOL_PREFIX@snd_seq_port_info_set_ump_is_midi1;
 #endif
 #ifdef HAVE_RAWMIDI_SYMS
     @SYMBOL_PREFIX@snd_ump_endpoint_info_clear;
diff --git a/src/seq/seq.c b/src/seq/seq.c
index d0ecedf0..347ff455 100644
--- a/src/seq/seq.c
+++ b/src/seq/seq.c
@@ -2431,6 +2431,19 @@ int snd_seq_port_info_get_ump_group(const snd_seq_port_info_t *info)
 	return info->ump_group;
 }
 
+/**
+ * \brief Get the status of the optional MIDI 1.0 port in MIDI 2.0 UMP Endpoint
+ * \param info port_info container
+ * \return 1 if it's an optional MIDI 1.0 port in MIDI 2.0 UMP Endpoint
+ *
+ * \sa snd_seq_get_port_info(), snd_seq_port_info_set_ump_is_midi1()
+ */
+int snd_seq_port_info_get_ump_is_midi1(const snd_seq_port_info_t *info)
+{
+	assert(info);
+	return !!(info->flags & SNDRV_SEQ_PORT_FLG_IS_MIDI1);
+}
+
 /**
  * \brief Set the client id of a port_info container
  * \param info port_info container
@@ -2635,6 +2648,22 @@ void snd_seq_port_info_set_ump_group(snd_seq_port_info_t *info, int ump_group)
 	info->ump_group = ump_group;
 }
 
+/**
+ * \brief Set the optional MIDI 1.0 port in MIDI 2.0 UMP Endpoint
+ * \param info port_info container
+ * \param is_midi1 non-zero for MIDI 1.0 port in MIDI 2.0 EP
+ *
+ * \sa snd_seq_get_port_info(), snd_seq_port_info_get_ump_is_midi1()
+ */
+void snd_seq_port_info_set_ump_is_midi1(snd_seq_port_info_t *info, int is_midi1)
+{
+	assert(info);
+	if (is_midi1)
+		info->flags |= SNDRV_SEQ_PORT_FLG_IS_MIDI1;
+	else
+		info->flags &= ~SNDRV_SEQ_PORT_FLG_IS_MIDI1;
+}
+
 /**
  * \brief create a sequencer port on the current client
  * \param seq sequencer handle