From 9873740b2f41b37ec074afd4b8910b87dbebc0db Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab@redhat.com>
Date: Mon, 13 Jul 2009 01:03:37 -0300
Subject: V4L/DVB (12237): mt9v011: implement VIDIOC_QUERYCTRL
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
drivers/media/video/mt9v011.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
(limited to 'drivers/media')
diff --git a/drivers/media/video/mt9v011.c b/drivers/media/video/mt9v011.c
index 1fe8fc9..241382f 100644
--- a/drivers/media/video/mt9v011.c
+++ b/drivers/media/video/mt9v011.c
@@ -215,6 +215,23 @@ static int mt9v011_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
return -EINVAL;
}
+static int mt9v011_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
+{
+ int i;
+
+ v4l2_dbg(1, debug, sd, "queryctrl called\n");
+
+ for (i = 0; i < ARRAY_SIZE(mt9v011_qctrl); i++)
+ if (qc->id && qc->id == mt9v011_qctrl[i].id) {
+ memcpy(qc, &(mt9v011_qctrl[i]),
+ sizeof(*qc));
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+
static int mt9v011_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
struct mt9v011 *core = to_mt9v011(sd);
@@ -338,6 +355,7 @@ static int mt9v011_g_chip_ident(struct v4l2_subdev *sd,
}
static const struct v4l2_subdev_core_ops mt9v011_core_ops = {
+ .queryctrl = mt9v011_queryctrl,
.g_ctrl = mt9v011_g_ctrl,
.s_ctrl = mt9v011_s_ctrl,
.reset = mt9v011_reset,
--
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