diff --git a/drivers/misc/lwl_console.c b/drivers/misc/lwl_console.c
index 68333d6bb9a..61806ccfd15 100644
--- a/drivers/misc/lwl_console.c
+++ b/drivers/misc/lwl_console.c
@@ -294,6 +294,22 @@ static ssize_t lwlconsole_write(FAR struct file *filep,
  * Public Functions
  ****************************************************************************/
 
+/****************************************************************************
+ * Name: up_putc
+ ****************************************************************************/
+
+void up_putc(int ch)
+{
+  /* If link not initialize just return */
+
+  if (!linkactive())
+    {
+      return;
+    }
+
+  write8bits(LWL_PORT_CONSOLE, (uint8_t)ch);
+}
+
 /****************************************************************************
  * Name: lwlconsole_init
  ****************************************************************************/