v4l2_queryctrl sets the step value based on the control type. That would be fine if it used the control type stored in the V4L2 kernel control object, not the one stored in the userspace ioctl structure that has just been memset to 0. Fix this. Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> Acked-by: Hans Verkuil <hverkuil@xxxxxxxxx> --- drivers/media/video/v4l2-ctrls.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/media/video/v4l2-ctrls.c b/drivers/media/video/v4l2-ctrls.c index 9d2502c..5f74fec0 100644 --- a/drivers/media/video/v4l2-ctrls.c +++ b/drivers/media/video/v4l2-ctrls.c @@ -1338,7 +1338,7 @@ int v4l2_queryctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_queryctrl *qc) qc->minimum = ctrl->minimum; qc->maximum = ctrl->maximum; qc->default_value = ctrl->default_value; - if (qc->type == V4L2_CTRL_TYPE_MENU) + if (ctrl->type == V4L2_CTRL_TYPE_MENU) qc->step = 1; else qc->step = ctrl->step; -- 1.7.3.4 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html