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| author | Sylwester Nawrocki <s.nawrocki@samsung.com> | 2012-09-13 13:08:19 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-10-05 21:28:00 -0300 |
| commit | a375e1dfefdb951e0591394ac1796d88a712877f (patch) | |
| tree | 0bec854a41895ccdbd8835b863f7d9f8c06a9242 /include/media | |
| parent | 24c54f7757659cdab9089dbd416c58f0da1557b0 (diff) | |
| download | linux-rt-a375e1dfefdb951e0591394ac1796d88a712877f.tar.gz | |
[media] V4L: Add s_rx_buffer subdev video operation
The s_rx_buffer callback allows the host to set buffer for a data being
received by the subdev, e.g. non-image frame (meta) data. This callback
can be implemented by subdevice like a MIPI CSI2 receiver, allowing the
host driver to gather additional data into frame buffer passed to user
space.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/media')
| -rw-r--r-- | include/media/v4l2-subdev.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index 2ecd7377153b..abf1a0e50333 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -274,6 +274,10 @@ struct v4l2_subdev_audio_ops { s_mbus_config: set a certain mediabus configuration. This operation is added for compatibility with soc-camera drivers and should not be used by new software. + + s_rx_buffer: set a host allocated memory buffer for the subdev. The subdev + can adjust @size to a lower value and must not write more data to the + buffer starting at @data than the original value of @size. */ struct v4l2_subdev_video_ops { int (*s_routing)(struct v4l2_subdev *sd, u32 input, u32 output, u32 config); @@ -327,6 +331,8 @@ 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 (*s_rx_buffer)(struct v4l2_subdev *sd, void *buf, + unsigned int *size); }; /* |