From: Hans Verkuil <hans.verkuil@xxxxxxxxx> This patch series adds the VIDIOC_SUBDEV_QUERYCAP ioctl for v4l-subdev devices as discussed during the ELC in San Jose and as discussed here: http://www.spinics.net/lists/linux-media/msg88009.html It also add support for MEDIA_IOC_DEVICE_INFO to any media entities so applications can use that to find the media controller and detailed information about the entity. This is the second RFC patch series. The main changes are: - Drop the entity ID from the querycap ioctls - Instead have every entity device implement MEDIA_IOC_DEVICE_INFO - Add major, minor and entity_id fields to struct media_device_info: this allows applications to find the MC device and to determine the entity ID of the device for which they called the ioctl. It is 0 for the MC (entity IDs are always > 0 for entities). This is IMHO simple, consistent, and it will work for any media entity. Regards, Hans PS: I have not tested the DVB changes yet. I hope I got those right. Hans Verkuil (8): v4l2-subdev: add VIDIOC_SUBDEV_QUERYCAP ioctl DocBook/media: document VIDIOC_SUBDEV_QUERYCAP videodev2.h: add V4L2_CAP_ENTITY to querycap media: add major/minor/entity_id to struct media_device_info v4l2-subdev: add MEDIA_IOC_DEVICE_INFO v4l2-ioctl: add MEDIA_IOC_DEVICE_INFO dvb: add MEDIA_IOC_DEVICE_INFO DocBook/media: document the new media_device_info fields. .../DocBook/media/v4l/media-ioc-device-info.xml | 35 +++++- Documentation/DocBook/media/v4l/v4l2.xml | 1 + .../DocBook/media/v4l/vidioc-querycap.xml | 6 + .../DocBook/media/v4l/vidioc-subdev-querycap.xml | 125 +++++++++++++++++++++ drivers/media/dvb-core/dmxdev.c | 24 +++- drivers/media/dvb-core/dvb_ca_en50221.c | 11 ++ drivers/media/dvb-core/dvb_net.c | 11 ++ drivers/media/media-device.c | 29 +++-- drivers/media/media-devnode.c | 5 +- drivers/media/v4l2-core/v4l2-ioctl.c | 43 ++++++- drivers/media/v4l2-core/v4l2-subdev.c | 26 +++++ include/media/media-device.h | 3 + include/media/media-devnode.h | 1 + include/uapi/linux/media.h | 5 +- include/uapi/linux/v4l2-subdev.h | 10 ++ include/uapi/linux/videodev2.h | 1 + 16 files changed, 316 insertions(+), 20 deletions(-) create mode 100644 Documentation/DocBook/media/v4l/vidioc-subdev-querycap.xml -- 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
