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| author | Benjamin Gaignard <benjamin.gaignard@collabora.com> | 2023-12-11 16:32:49 +0300 |
|---|---|---|
| committer | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2023-12-13 19:31:27 +0300 |
| commit | 80c2b40a51393add616a1fd186a1cc10bd676a3f (patch) | |
| tree | 228411e748bc8df6e974b624eb4703c9d75e5fe7 /include/media | |
| parent | a3e28ea7771794c2938637f95a4d7a957f45465e (diff) | |
| download | linux-80c2b40a51393add616a1fd186a1cc10bd676a3f.tar.xz | |
media: videobuf2: core: Rename min_buffers_needed field in vb2_queue
Rename min_buffers_needed into min_queued_buffers and update
the documentation about it.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil: Drop the change where min_queued_buffers + 1 buffers would be]
[hverkuil: allocated. Now this patch only renames this field instead of making]
[hverkuil: a functional change as well.]
[hverkuil: Renamed 3 remaining min_buffers_needed occurrences.]
Diffstat (limited to 'include/media')
| -rw-r--r-- | include/media/videobuf2-core.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h index 5557d78b6f20..56719a26a46c 100644 --- a/include/media/videobuf2-core.h +++ b/include/media/videobuf2-core.h @@ -402,7 +402,7 @@ struct vb2_buffer { * by calling vb2_buffer_done() with %VB2_BUF_STATE_QUEUED. * If you need a minimum number of buffers before you can * start streaming, then set - * &vb2_queue->min_buffers_needed. If that is non-zero + * &vb2_queue->min_queued_buffers. If that is non-zero * then @start_streaming won't be called until at least * that many buffers have been queued up by userspace. * @stop_streaming: called when 'streaming' state must be disabled; driver @@ -546,10 +546,13 @@ struct vb2_buf_ops { * @gfp_flags: additional gfp flags used when allocating the buffers. * Typically this is 0, but it may be e.g. %GFP_DMA or %__GFP_DMA32 * to force the buffer allocation to a specific memory zone. - * @min_buffers_needed: the minimum number of buffers needed before + * @min_queued_buffers: the minimum number of queued buffers needed before * @start_streaming can be called. Used when a DMA engine * cannot be started unless at least this number of buffers * have been queued into the driver. + * VIDIOC_REQBUFS will ensure at least @min_queued_buffers + * buffers will be allocated. Note that VIDIOC_CREATE_BUFS will not + * modify the requested buffer count. */ /* * Private elements (won't appear at the uAPI book): @@ -614,7 +617,7 @@ struct vb2_queue { unsigned int buf_struct_size; u32 timestamp_flags; gfp_t gfp_flags; - u32 min_buffers_needed; + u32 min_queued_buffers; struct device *alloc_devs[VB2_MAX_PLANES]; |