+const u32 cx88_user_ctrls[] = {
+ V4L2_CID_USER_CLASS,
+ V4L2_CID_BRIGHTNESS,
+ V4L2_CID_CONTRAST,
+ V4L2_CID_SATURATION,
+ V4L2_CID_HUE,
+ V4L2_CID_AUDIO_VOLUME,
+ V4L2_CID_AUDIO_BALANCE,
+ V4L2_CID_AUDIO_MUTE,
+ 0
+};
+EXPORT_SYMBOL(cx88_user_ctrls);
+
+static const u32 *ctrl_classes[] = {
+ cx88_user_ctrls,
+ NULL
+};
+
+int cx8800_ctrl_query(struct v4l2_queryctrl *qctrl)
+{
+ int i;
+
+ if (qctrl->id < V4L2_CID_BASE ||
+ qctrl->id >= V4L2_CID_LASTP1)
+ return -EINVAL;
+ for (i = 0; i < CX8800_CTLS; i++)
+ if (cx8800_ctls[i].v.id == qctrl->id)
+ break;
+ if (i == CX8800_CTLS) {
+ *qctrl = no_ctl;
+ return 0;
+ }
+ *qctrl = cx8800_ctls[i].v;
+ return 0;
+}
+EXPORT_SYMBOL(cx8800_ctrl_query);
+
+static int cx88_queryctrl(struct v4l2_queryctrl *qctrl)
+{
+ qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
+ if (qctrl->id == 0)
+ return -EINVAL;
+ return cx8800_ctrl_query(qctrl);
+}
+