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-rw-r--r--sys/v4l2/v4l2_calls.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/v4l2/v4l2_calls.c b/sys/v4l2/v4l2_calls.c
index 6f01328f..2ec66510 100644
--- a/sys/v4l2/v4l2_calls.c
+++ b/sys/v4l2/v4l2_calls.c
@@ -28,6 +28,7 @@
#include <sys/mman.h>
#include <string.h>
#include <errno.h>
+#include <unistd.h>
#include "v4l2_calls.h"
#define DEBUG(format, args...) \