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-rw-r--r--io-module/buttons.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/io-module/buttons.h b/io-module/buttons.h
index 510b7d3..ef80f34 100644
--- a/io-module/buttons.h
+++ b/io-module/buttons.h
@@ -27,6 +27,7 @@
#include <linux/ctype.h>
#include <linux/io.h>
#include <linux/module.h>
+#include <linux/version.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,11,0)
#include <linux/signalfd.h>
#endif