1 files changed, 8 insertions, 0 deletions
diff --git a/src/host/trxcon/l1ctl_link.h b/src/host/trxcon/l1ctl_link.h
index f9d91f14..01103dcc 100644
--- a/src/host/trxcon/l1ctl_link.h
+++ b/src/host/trxcon/l1ctl_link.h
@@ -1,5 +1,7 @@
 #pragma once
 
+#include <stdint.h>
+
 #include <osmocom/core/write_queue.h>
 #include <osmocom/core/select.h>
 #include <osmocom/core/timer.h>
@@ -9,6 +11,12 @@
 #define L1CTL_LENGTH 256
 #define L1CTL_HEADROOM 32
 
+/**
+ * Each L1CTL message gets its own length pushed
+ * as two bytes in front before sending.
+ */
+#define L1CTL_MSG_LEN_FIELD 2
+
 /* Forward declaration to avoid mutual include */
 struct trx_instance;