@@ -217,6 +217,7 @@ struct mt9m111 {
int power_count;
const struct mt9m111_datafmt *fmt;
int lastpage; /* PageMap cache value */
+ bool is_streaming;
#ifdef CONFIG_MEDIA_CONTROLLER
struct media_pad pad;
#endif
@@ -880,6 +881,14 @@ static int mt9m111_enum_mbus_code(struct v4l2_subdev *sd,
return 0;
}
+static int mt9m111_s_stream(struct v4l2_subdev *sd, int enable)
+{
+ struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
+
+ mt9m111->is_streaming = !!enable;
+ return 0;
+}
+
static int mt9m111_g_mbus_config(struct v4l2_subdev *sd,
struct v4l2_mbus_config *cfg)
{
@@ -893,6 +902,7 @@ static int mt9m111_g_mbus_config(struct v4l2_subdev *sd,
static const struct v4l2_subdev_video_ops mt9m111_subdev_video_ops = {
.g_mbus_config = mt9m111_g_mbus_config,
+ .s_stream = mt9m111_s_stream,
};
static const struct v4l2_subdev_pad_ops mt9m111_subdev_pad_ops = {
Add callback to check if we are already streaming. Now other callbacks can check the state and return -EBUSY if we already streaming. Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> --- drivers/media/i2c/mt9m111.c | 10 ++++++++++ 1 file changed, 10 insertions(+)