Index: src/sqlite.h.in
==================================================================
--- src/sqlite.h.in
+++ src/sqlite.h.in
@@ -964,10 +964,15 @@
 ** Applications should <em>not</em> use this file-control.
 **
 ** <li>[[SQLITE_FCNTL_ZIPVFS]]
 ** The [SQLITE_FCNTL_ZIPVFS] opcode is implemented by zipvfs only. All other
 ** VFS should return SQLITE_NOTFOUND for this opcode.
+**
+** <li>[[SQLITE_FCNTL_OTA]]
+** The [SQLITE_FCNTL_OTA] opcode is implemented by the special VFS used by
+** the OTA extension only.  All other VFS should return SQLITE_NOTFOUND for
+** this opcode.  
 ** </ul>
 */
 #define SQLITE_FCNTL_LOCKSTATE               1
 #define SQLITE_FCNTL_GET_LOCKPROXYFILE       2
 #define SQLITE_FCNTL_SET_LOCKPROXYFILE       3