Hello,
dropped V4L2_SUBDEV_CAP_RW_SUBDEV as requested by Hans, updated documentation
and commit messages accordingly.
Thanks
j
v6->v7:
- Drop V4L2_SUBDEV_CAP_RW_SUBDEV
v5.1->v6:
- Add __u32 reserved[14] field to struct v4l2_subdev_capabilities
- s/v4l2_subdev_capabilities.subdev_cap/v4l2_subdev_capabilities.capabilities
- Update documentation accordingly
v5->v5.1:
- Replace
"media: v4l2-subdev: Assume V4L2_SUBDEV_API is selected"
with
"media: v4l2-subdev: Guard whole fops and ioctl hdlr"
v4->v5:
- Add "media: v4l2-subdev: Assume V4L2_SUBDEV_API is selected"
- Use BIT() instead of manual bitshifting
- Use tabs in documentation in place of 8 spaces
- minor documentation fixes
v3->v4:
- Rebase v3 on latest media master and new documentation layout
- Add SUBDEV_QUERYCAP support
v2->v3:
- Add Sakari's ack to the series
- Documentation:
- Address Sakari' and Hans suggestions
- Implementation:
- Rename V4L2_FL_RO_DEVNODE to V4L2_FL_SUBDEV_RO_DEVNODE
- Limit the ability to register sub-device video device nodes to
driver claiming support for CONFIG_VIDEO_V4L2_SUBDEV_API
v1->v2:
- Documentation:
- Add a new patch using Laurent's suggestion to update the sub-device
userspace API introduction
- Take in some of Laurent's suggestions in v4l2-subdev.rst and add a new
section in dev-subdev.rst
- Implementation:
- As noted by Andrey, V4L2_FL_* are meant to be used as bitmasks. Use
test_bit()/set_bit() as the rest of the v4l2 core does. It's a bit an
overkill compared to use plain BIT() as noted by Sakari but I preferred
consistency with the rest of the core
- Make v4l2_device_register_subdev_nodes() and
v4l2_device_register_ro_subdev_nodes() to v4l2-device.h and make them
inline functions. Documentation style has been copied from other functions
with similar implementations, such as __video_register_device() in
v4l2-dev.h
Hans Verkuil (2):
v4l2-subdev: add VIDIOC_SUBDEV_QUERYCAP ioctl
v4l: document VIDIOC_SUBDEV_QUERYCAP
Jacopo Mondi (4):
Documentation: media: Update sub-device API intro
Documentation: media: Document read-only subdevice
media: v4l2-dev: Add v4l2_device_register_ro_subdev_node()
media: v4l2-subdev: Guard whole fops and ioctl hdlr
.../driver-api/media/v4l2-subdev.rst | 53 ++++++++-
.../userspace-api/media/v4l/dev-subdev.rst | 5 +
.../userspace-api/media/v4l/user-func.rst | 1 +
.../media/v4l/vidioc-g-dv-timings.rst | 6 +
.../userspace-api/media/v4l/vidioc-g-std.rst | 6 +
.../media/v4l/vidioc-subdev-g-crop.rst | 9 ++
.../media/v4l/vidioc-subdev-g-fmt.rst | 8 ++
.../v4l/vidioc-subdev-g-frame-interval.rst | 8 ++
.../media/v4l/vidioc-subdev-g-selection.rst | 8 ++
.../media/v4l/vidioc-subdev-querycap.rst | 112 ++++++++++++++++++
drivers/media/v4l2-core/v4l2-device.c | 7 +-
drivers/media/v4l2-core/v4l2-subdev.c | 69 +++++++++--
include/media/v4l2-dev.h | 7 ++
include/media/v4l2-device.h | 50 +++++++-
include/uapi/linux/v4l2-subdev.h | 16 +++
15 files changed, 349 insertions(+), 16 deletions(-)
create mode 100644 Documentation/userspace-api/media/v4l/vidioc-subdev-querycap.rst
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2.26.1
