On Thursday 28 May 2009 13:20:15 Dongsoo, Nathaniel Kim wrote: > Hello everyone, > > I'm doing my driver job with kernel 2.6.30-rc6, trying to figure out > how to convert my old drivers to v4l2-subdev framework. Looking into > the v4l2-subdev.h file an interesting API popped up and can't find any > precise comment about that. It is "s_stream" in v4l2_subdev_video_ops. > I think I found this api in the very nick of time, if the purpose of > that api is exactly what I need. Actually, I was trying to make my > sub device to get streamon and streamoff command from the device side, > and I wish the "s_stream" is that for. Because in case of camera > module with embedded JPEG encoder, it is necessary to make the camera > module be aware of the exact moment of streamon to pass the encoded > data to camera interface. (many of camera ISPs can't stream out > continuous frame of JPEG data, so we have only one chance of shot). > Is the s_stream for streamon purpose in subdev? (I hope so...finger > crossed) Cheers, Yes it is. It is for subdevs that need to implement VIDIOC_STREAMON and VIDIOC_STREAMOFF. Regards, Hans -- Hans Verkuil - video4linux developer - sponsored by TANDBERG Telecom -- 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
