Hi Laurent, On 02/18/2012 12:23 AM, Laurent Pinchart wrote:
struct v4l2_subdev_video_ops { int (*s_routing)(struct v4l2_subdev *sd, u32 input, u32 output, u32 config); @@ -321,6 +329,8 @@ struct v4l2_subdev_video_ops { struct v4l2_mbus_config *cfg); int (*s_mbus_config)(struct v4l2_subdev *sd, const struct v4l2_mbus_config *cfg); + int (*g_embedded_data)(struct v4l2_subdev *sd, unsigned int *size, + void **buf); };How is the embedded data transferred from the sensor to the host in your case ? Over I2C ?
It's transferred over MIPI-CSI2 bus and is intercepted by the MIPI-CSI2 receiver, before the image data DMA. The MIPI-CSI2 doesn't have its own DMA engine. More details can be found in patch 6/6. -- Regards, Sylwester -- 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
