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-rw-r--r--yavta.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/yavta.c b/yavta.c
index 0efa7d7..7d9c40c 100644
--- a/yavta.c
+++ b/yavta.c
@@ -637,6 +637,12 @@ static int query_control(struct device *dev, unsigned int id,
query->default_value = q.default_value;
query->flags = q.flags;
+ if (q.type == V4L2_CTRL_TYPE_STRING &&
+ !(q.flags & V4L2_CTRL_FLAG_HAS_PAYLOAD)) {
+ query->elem_size = q.maximum + 1;
+ query->elems = 1;
+ }
+
return 0;
}