diff --git a/drivers/lcd/tda19988.c b/drivers/lcd/tda19988.c
index 8b47b4f8369..d3597130c16 100644
--- a/drivers/lcd/tda19988.c
+++ b/drivers/lcd/tda19988.c
@@ -1645,7 +1645,8 @@ static void tda19988_shutdown(FAR struct tda1988_dev_s *priv)
  *   Create and register the the TDA19988 driver at 'devpath'
  *
  * Input Parameters:
- *   devpath - The location to register the TDA19988 driver instance
+ *   devpath - The location to register the TDA19988 driver instance.  The
+ *             standard location would be a path like /dev/hdmi0.
  *   lower   - The interface to the the TDA19988 lower half driver.
  *
  * Returned Value:
diff --git a/include/nuttx/lcd/tda19988.h b/include/nuttx/lcd/tda19988.h
index a9c0c98c2cc..8b77c00a621 100644
--- a/include/nuttx/lcd/tda19988.h
+++ b/include/nuttx/lcd/tda19988.h
@@ -173,7 +173,8 @@ extern "C"
  *   Create and register the the TDA19988 driver at 'devpath'
  *
  * Input Parameters:
- *   devpath - The location to register the TDA19988 driver instance
+ *   devpath - The location to register the TDA19988 driver instance.  The
+ *             standard location would be a path like /dev/hdmi0.
  *   lower   - The interface to the the TDA19988 lower half driver.
  *
  * Returned Value: