diff --git a/hal/audio_extn/soundtrigger.c b/hal/audio_extn/soundtrigger.c
index 70f6d06..aff7532 100644
--- a/hal/audio_extn/soundtrigger.c
+++ b/hal/audio_extn/soundtrigger.c
@@ -349,6 +349,18 @@
         event.u.value = val;
         st_dev->st_callback(AUDIO_EVENT_NUM_ST_SESSIONS, &event);
     }
+
+    ret = str_parms_get_int(params, AUDIO_PARAMETER_DEVICE_CONNECT, &val);
+    if ((ret >= 0) && audio_is_input_device(val)) {
+        event.u.value = val;
+        st_dev->st_callback(AUDIO_EVENT_DEVICE_CONNECT, &event);
+    }
+
+    ret = str_parms_get_int(params, AUDIO_PARAMETER_DEVICE_DISCONNECT, &val);
+    if ((ret >= 0) && audio_is_input_device(val)) {
+        event.u.value = val;
+        st_dev->st_callback(AUDIO_EVENT_DEVICE_DISCONNECT, &event);
+    }
 }
 
 int audio_extn_sound_trigger_init(struct audio_device *adev)