-static int vidioc_queryctrl(struct file *file, void *priv,
- struct v4l2_queryctrl *qc)
-{
- struct cx231xx_fh *fh = priv;
- struct cx231xx *dev = fh->dev;
- int id = qc->id;
- int i;
- int rc;
-
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
-
- qc->id = v4l2_ctrl_next(ctrl_classes, qc->id);
- if (unlikely(qc->id == 0))
- return -EINVAL;
-
- memset(qc, 0, sizeof(*qc));
-
- qc->id = id;
-
- if (qc->id < V4L2_CID_BASE || qc->id >= V4L2_CID_LASTP1)
- return -EINVAL;
-
- for (i = 0; i < CX231XX_CTLS; i++)
- if (cx231xx_ctls[i].v.id == qc->id)
- break;
-
- if (i == CX231XX_CTLS) {
- *qc = no_ctl;
- return 0;
- }
- *qc = cx231xx_ctls[i].v;
-
- call_all(dev, core, queryctrl, qc);
-
- if (qc->type)
- return 0;
- else
- return -EINVAL;
-}
-
-static int vidioc_g_ctrl(struct file *file, void *priv,
- struct v4l2_control *ctrl)
-{
- struct cx231xx_fh *fh = priv;
- struct cx231xx *dev = fh->dev;
- int rc;
-
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
-
- call_all(dev, core, g_ctrl, ctrl);
- return rc;
-}
-
-static int vidioc_s_ctrl(struct file *file, void *priv,
- struct v4l2_control *ctrl)
-{
- struct cx231xx_fh *fh = priv;
- struct cx231xx *dev = fh->dev;
- int rc;
-
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
-
- call_all(dev, core, s_ctrl, ctrl);
- return rc;
-}
-