diff --git a/drivers/serial/uart_bth4.c b/drivers/serial/uart_bth4.c
index f5c68ee62f..eb204d00f0 100644
--- a/drivers/serial/uart_bth4.c
+++ b/drivers/serial/uart_bth4.c
@@ -351,7 +351,15 @@ out:
 static int uart_bth4_ioctl(FAR struct file *filep, int cmd,
                            unsigned long arg)
 {
-  return OK;
+  FAR struct inode *inode = filep->f_inode;
+  FAR struct uart_bth4_s *dev = inode->i_private;
+
+  if (!dev->drv->ioctl)
+    {
+      return -ENOTTY;
+    }
+
+  return dev->drv->ioctl(dev->drv, cmd, arg);
 }
 
 static int uart_bth4_poll(FAR struct file *filep, FAR struct pollfd *fds,
diff --git a/include/nuttx/wireless/bluetooth/bt_driver.h b/include/nuttx/wireless/bluetooth/bt_driver.h
index acea43bc3c..0947a4dd37 100644
--- a/include/nuttx/wireless/bluetooth/bt_driver.h
+++ b/include/nuttx/wireless/bluetooth/bt_driver.h
@@ -79,6 +79,11 @@ struct bt_driver_s
                       enum bt_buf_type_e type,
                       FAR void *data, size_t len);
 
+  /* Lower-half logic may support platform-specific ioctl commands */
+
+  CODE int (*ioctl)(FAR struct bt_driver_s *btdev, int cmd,
+                    unsigned long arg);
+
   /* Filled by register function, shouldn't be touched by bt_driver_s */
 
   FAR void *priv;