From 6fb0b6bed65b9df6e34e83c84878cf002394f676 Mon Sep 17 00:00:00 2001
From: John Klug <jklug@buildslavemtcdt3dm1.dc.multitech.prv>
Date: Thu, 3 Dec 2020 12:05:11 -0600
Subject: Fix supercap power-down feature for 4.19 kernel

---
 configure.ac              | 2 +-
 io-module/mts_io_module.h | 2 +-
 io-module/mts_supercap.h  | 4 ++++
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 6d04b9f..ed8ce66 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT([mts-io], [4.5.0])
+AC_INIT([mts-io], [4.5.1])
 AC_CONFIG_SRCDIR([util/mts_util_lora2_reset.c])
 AM_INIT_AUTOMAKE
 AM_CONFIG_HEADER([config.h])
diff --git a/io-module/mts_io_module.h b/io-module/mts_io_module.h
index 301b853..0af9e06 100644
--- a/io-module/mts_io_module.h
+++ b/io-module/mts_io_module.h
@@ -5,7 +5,7 @@
  * MTAC cards.
  */
 
-#define DRIVER_VERSION  "v4.5.0"
+#define DRIVER_VERSION  "v4.5.1"
 #define DRIVER_AUTHOR   "Multitech Systems"
 #define DRIVER_DESC "MTS-IO Controller"
 #define DRIVER_NAME "mts-io"
diff --git a/io-module/mts_supercap.h b/io-module/mts_supercap.h
index 871346d..bbe5529 100644
--- a/io-module/mts_supercap.h
+++ b/io-module/mts_supercap.h
@@ -3,6 +3,10 @@
 
 #include <linux/workqueue.h>
 #include <linux/pid.h>
+#include <linux/version.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,11,0)
+#include <linux/signalfd.h>
+#endif
 
 #include "mts_io.h"
 #include "mts_io_module.h"
-- 
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