From: James Hilliard <[email protected]>
Signed-off-by: James Hilliard <[email protected]>
---
zbar/video/v4l2.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/zbar/video/v4l2.c b/zbar/video/v4l2.c
index 0d18094..1610b95 100644
--- a/zbar/video/v4l2.c
+++ b/zbar/video/v4l2.c
@@ -55,6 +55,28 @@
#define V4L2_FORMATS_MAX 64
#define V4L2_FORMATS_SIZE_MAX 256
+#ifndef VIDIOC_QUERY_EXT_CTRL
+#define VIDIOC_QUERY_EXT_CTRL _IOWR('V', 103, struct v4l2_query_ext_ctrl)
+#define V4L2_CTRL_MAX_DIMS (4)
+
+struct v4l2_query_ext_ctrl {
+ __u32 id;
+ __u32 type;
+ char name[32];
+ __s64 minimum;
+ __s64 maximum;
+ __u64 step;
+ __s64 default_value;
+ __u32 flags;
+ __u32 elem_size;
+ __u32 elems;
+ __u32 nr_of_dims;
+ __u32 dims[V4L2_CTRL_MAX_DIMS];
+ __u32 reserved[32];
+};
+
+#endif
+
typedef struct video_controls_priv_s {
struct video_controls_s s;
--
2.7.4
