1 files changed, 7 insertions, 4 deletions
diff --git a/monitor-get-edid-using-vbe.c b/monitor-get-edid-using-vbe.c
index f922a6b..3f8ab1c 100644
--- a/monitor-get-edid-using-vbe.c
+++ b/monitor-get-edid-using-vbe.c
@@ -17,7 +17,7 @@ int verbose = 0;
 static void timeout_handler(int signal)
 {
   fprintf(stderr, "ERROR: timeout during EDID probe\n");
-  exit(1);
+  exit(3);
 }
 
 int main(int argc, char **argv)
@@ -78,8 +78,11 @@ int main(int argc, char **argv)
 	 return 0;
   }
 
-  /* returns 1 when VBE call was ok but not EDID call;
-   * calling program can then speedup call on other ports with --skip-vbe-check;
-   * also, calling program knows no ports work if the VBE call failed */
+  /* returns 1 on error before any successful calls; no ports work;
+   *          calling program may skip other ports
+   * returns 2 on other errors; a different port may still work (call to VBE was ok);
+   *          calling program may speedup call on other ports with --skip-vbe-check
+   * returns 3 on timeout
+   */
   return -size;
 }