diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index 73e9a17..24ea129 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -1278,6 +1278,7 @@
     port	- port number or -1 (disable)
     irq		- IRQ number or -1 (disable)
     pnp		- PnP detection - 0 = disable, 1 = enable (default)
+    uart_enter	- Issue UART_ENTER command at open - bool, default = on
 
     This module supports multiple devices and PnP.