From c4b70b82f35d27e85b2ee54e67fcce06f0a84dcb Mon Sep 17 00:00:00 2001
From: Alex Voinea <voinea.dragos.alexandru@gmail.com>
Date: Tue, 20 Apr 2021 09:13:38 +0300
Subject: [PATCH] Document M20 T parameter

---
 Firmware/Marlin_main.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Firmware/Marlin_main.cpp b/Firmware/Marlin_main.cpp
index ed855fdc..3f8154d8 100755
--- a/Firmware/Marlin_main.cpp
+++ b/Firmware/Marlin_main.cpp
@@ -5740,9 +5740,10 @@ if(eSoundMode!=e_SOUND_MODE_SILENT)
 	### M20 - SD Card file list <a href="https://reprap.org/wiki/G-code#M20:_List_SD_card">M20: List SD card</a>
     #### Usage
     
-        M20 [ L ]
+        M20 [ L | T ]
     #### Parameters
-    - `L` - Reports ling filenames instead of just short filenames. Requires host software parsing.
+    - `T` - Report timestamps as well. The value is one uint32_t encoded as hex. Requires host software parsing (Cap:EXTENDED_M20).
+    - `L` - Reports long filenames instead of just short filenames. Requires host software parsing (Cap:EXTENDED_M20).
     */
     case 20:
       KEEPALIVE_STATE(NOT_BUSY); // do not send busy messages during listing. Inhibits the output of manage_heater()