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-rw-r--r--lib/igt_sysfs.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/igt_sysfs.h b/lib/igt_sysfs.h
index 3ee89b0f..74e61060 100644
--- a/lib/igt_sysfs.h
+++ b/lib/igt_sysfs.h
@@ -26,6 +26,7 @@
#define __IGT_SYSFS_H__
#include <stdbool.h>
+#include <stdarg.h>
char *igt_sysfs_path(int device, char *path, int pathlen, int *idx);
int igt_sysfs_open(int device, int *idx);