diff --git a/src/basic/missing_loop.h b/src/basic/missing_loop.h
index 449858d3a7..7141544b64 100644
--- a/src/basic/missing_loop.h
+++ b/src/basic/missing_loop.h
@@ -14,6 +14,11 @@ struct loop_config {
 #define LOOP_CONFIGURE 0x4C0A
 #endif
 
-#ifndef LOOP_SET_STATUS_SETTABLE_FLAGS
-#define LOOP_SET_STATUS_SETTABLE_FLAGS (LO_FLAGS_AUTOCLEAR | LO_FLAGS_PARTSCAN)
+#ifndef LO_FLAGS_DIRECT_IO
+#define LO_FLAGS_DIRECT_IO 16
+#define LOOP_SET_DIRECT_IO 0x4C08
+#endif
+
+#ifndef LOOP_SET_STATUS_SETTABLE_FLAGS
+#define LOOP_SET_STATUS_SETTABLE_FLAGS (LO_FLAGS_AUTOCLEAR | LO_FLAGS_PARTSCAN | LO_FLAGS_DIRECT_IO)
 #endif