From a66c03cafc8da9b6c50f19085b7b8f001ad0c6a2 Mon Sep 17 00:00:00 2001
From: jflyper <shinoda@jaist.ac.jp>
Date: Fri, 22 Feb 2019 10:58:16 +0900
Subject: [PATCH] Display a message if band or power count is zero

---
 src/main/cms/cms_menu_vtx_tramp.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/main/cms/cms_menu_vtx_tramp.c b/src/main/cms/cms_menu_vtx_tramp.c
index f49e7ba420..95cb5472b0 100644
--- a/src/main/cms/cms_menu_vtx_tramp.c
+++ b/src/main/cms/cms_menu_vtx_tramp.c
@@ -21,6 +21,7 @@
 #include <stdbool.h>
 #include <stdint.h>
 #include <ctype.h>
+#include <string.h>
 
 #include "platform.h"
 
@@ -47,6 +48,12 @@ char trampCmsStatusString[31] = "- -- ---- ----";
 void trampCmsUpdateStatusString(void)
 {
     vtxDevice_t *vtxDevice = vtxCommonDevice();
+
+    if (vtxDevice->capability.bandCount == 0 || vtxDevice->capability.powerCount) {
+        strncpy(trampCmsStatusString, "PLEASE CONFIGURE VTXTABLE", sizeof(trampCmsStatusString));
+        return;
+    }
+
     trampCmsStatusString[0] = '*';
     trampCmsStatusString[1] = ' ';
     trampCmsStatusString[2] = vtxCommonLookupBandLetter(vtxDevice, trampBand);