diff --git a/src/adapter.c b/src/adapter.c
index 0909a22..9fadc1c 100644
--- a/src/adapter.c
+++ b/src/adapter.c
@@ -146,6 +146,7 @@ struct btd_adapter {
 	guint off_timer;
 
 	GSList *powered_callbacks;
+	GSList *pin_callbacks;
 
 	GSList *loaded_drivers;
 };
@@ -2573,6 +2574,7 @@ void adapter_remove(struct btd_adapter *adapter)
 	g_slist_free(adapter->devices);
 
 	unload_drivers(adapter);
+	g_slist_free(adapter->pin_callbacks);
 
 	/* Return adapter to down state if it was not up on init */
 	adapter_ops->restore_powered(adapter->dev_id);
@@ -3435,6 +3437,39 @@ int btd_adapter_switch_offline(struct btd_adapter *adapter)
 	return 0;
 }
 
+void btd_adapter_register_pin_cb(struct btd_adapter *adapter,
+							btd_adapter_pin_cb_t cb)
+{
+	adapter->pin_callbacks = g_slist_prepend(adapter->pin_callbacks, cb);
+}
+
+void btd_adapter_unregister_pin_cb(struct btd_adapter *adapter,
+							btd_adapter_pin_cb_t cb)
+{
+	adapter->pin_callbacks = g_slist_remove(adapter->pin_callbacks, cb);
+}
+
+ssize_t btd_adapter_get_pin(struct btd_adapter *adapter, struct btd_device *dev,
+								char *pin_buf)
+{
+	GSList *l;
+	btd_adapter_pin_cb_t cb;
+	bdaddr_t sba, dba;
+	ssize_t ret;
+
+	for (l = adapter->pin_callbacks; l != NULL; l = g_slist_next(l)) {
+		cb = l->data;
+		ret = cb(adapter, dev, pin_buf);
+		if (ret > 0)
+			return ret;
+	}
+
+	adapter_get_address(adapter, &sba);
+	device_get_address(dev, &dba);
+
+	return read_pin_code(&sba, &dba, pin_buf);
+}
+
 int btd_register_adapter_ops(struct btd_adapter_ops *ops, gboolean priority)
 {
 	if (ops->setup == NULL)
diff --git a/src/adapter.h b/src/adapter.h
index 38ea3ca..687275a 100644
--- a/src/adapter.h
+++ b/src/adapter.h
@@ -165,6 +165,15 @@ int btd_adapter_restore_powered(struct btd_adapter *adapter);
 int btd_adapter_switch_online(struct btd_adapter *adapter);
 int btd_adapter_switch_offline(struct btd_adapter *adapter);
 
+typedef ssize_t (*btd_adapter_pin_cb_t) (struct btd_adapter *adapter,
+					struct btd_device *dev, char *out);
+void btd_adapter_register_pin_cb(struct btd_adapter *adapter,
+						btd_adapter_pin_cb_t cb);
+void btd_adapter_unregister_pin_cb(struct btd_adapter *adapter,
+						btd_adapter_pin_cb_t cb);
+ssize_t btd_adapter_get_pin(struct btd_adapter *adapter, struct btd_device *dev,
+								char *pin_buf);
+
 typedef void (*bt_hci_result_t) (uint8_t status, gpointer user_data);
 
 struct btd_adapter_ops {
diff --git a/src/event.c b/src/event.c
index 2a43bc8..7398fd3 100644
--- a/src/event.c
+++ b/src/event.c
@@ -133,7 +133,7 @@ int btd_event_request_pin(bdaddr_t *sba, bdaddr_t *dba, gboolean secure)
 		return -ENODEV;
 
 	memset(pin, 0, sizeof(pin));
-	pinlen = read_pin_code(sba, dba, pin);
+	pinlen = btd_adapter_get_pin(adapter, device, pin);
 	if (pinlen > 0 && (!secure || pinlen == 16)) {
 		btd_adapter_pincode_reply(adapter, dba, pin, pinlen);
 		return 0;