From: Hans Verkuil <hans.verkuil@xxxxxxxxx> This patch series adds support for the request API (formerly called the configuration store API: http://www.spinics.net/lists/linux-media/msg81024.html). This second version takes into account all the feedback I received from various people and from the discussions in Düsseldorf last year. Utilities that understand requests are available here: http://git.linuxtv.org/cgit.cgi/hverkuil/v4l-utils.git/log/?h=requests The git repo with these patches is here: http://git.linuxtv.org/cgit.cgi/hverkuil/media_tree.git/log/?h=requests Note: this will be rebased to the latest media_tree master on a regular basis. The last patch adds a document going into more detail of how everything works, so refer to that patch to get a good overview of this functionality. The patch adding request support to vivid is also useful to look at. DocBook patches are missing since I am waiting for a driver that will actually need this. If anyone is working on such a driver, then please let me know. If anyone has questions, or if anyone has ideas or thinks additional support for some functionality is needed in the core, then let me know as well. Regards, Hans Hans Verkuil (15): videodev2.h: add max_reqs to struct v4l2_query_ext_ctrl videodev2.h: add request to v4l2_ext_controls videodev2.h: add request field to v4l2_buffer. vb2: add allow_requests flag v4l2-ctrls: add request support v4l2-ctrls: add function to apply a request. v4l2-ctrls: implement delete request(s) v4l2-ctrls: add VIDIOC_REQUEST_CMD v4l2: add initial V4L2_REQ_CMD_QUEUE support vb2: add helper function to queue request-specific buffer. v4l2-device: keep track of registered video_devices v4l2-device: add v4l2_device_req_queue vivid: add request support for video capture. v4l2-ctrls: add REQ_KEEP flag Documentation: add v4l2-requests.txt Documentation/video4linux/v4l2-requests.txt | 233 ++++++++++++ drivers/media/platform/vivid/vivid-core.c | 2 + drivers/media/platform/vivid/vivid-ctrls.c | 4 + drivers/media/platform/vivid/vivid-kthread-cap.c | 2 + drivers/media/usb/cpia2/cpia2_v4l.c | 1 + drivers/media/v4l2-core/v4l2-compat-ioctl32.c | 4 +- drivers/media/v4l2-core/v4l2-ctrls.c | 440 ++++++++++++++++++++--- drivers/media/v4l2-core/v4l2-dev.c | 9 + drivers/media/v4l2-core/v4l2-device.c | 26 ++ drivers/media/v4l2-core/v4l2-ioctl.c | 123 ++++++- drivers/media/v4l2-core/v4l2-subdev.c | 78 +++- drivers/media/v4l2-core/videobuf2-core.c | 26 ++ include/media/v4l2-ctrls.h | 35 +- include/media/v4l2-dev.h | 3 + include/media/v4l2-device.h | 7 + include/media/v4l2-fh.h | 4 + include/media/videobuf2-core.h | 3 + include/uapi/linux/videodev2.h | 38 +- 18 files changed, 957 insertions(+), 81 deletions(-) create mode 100644 Documentation/video4linux/v4l2-requests.txt -- 2.1.4 -- 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
