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Date: Sat, 7 Mar 2020 18:38:00 +0900 From: Sergey Senozhatsky <senozhatsky@...omium.org> To: Hans Verkuil <hverkuil@...all.nl> Cc: Hans Verkuil <hans.verkuil@...co.com>, Tomasz Figa <tfiga@...omium.org>, Mauro Carvalho Chehab <mchehab@...nel.org>, Kyungmin Park <kyungmin.park@...sung.com>, Marek Szyprowski <m.szyprowski@...sung.com>, Sakari Ailus <sakari.ailus@....fi>, Laurent Pinchart <laurent.pinchart@...asonboard.com>, Pawel Osciak <posciak@...omium.org>, linux-media@...r.kernel.org, linux-kernel@...r.kernel.org, Sergey Senozhatsky <senozhatsky@...omium.org> Subject: Re: [PATCHv4 05/11] videobuf2: handle V4L2_FLAG_MEMORY_NON_CONSISTENT flag On (20/03/07 16:51), Sergey Senozhatsky wrote: > On (20/03/06 16:30), Hans Verkuil wrote: > [..] > > > > > > /* capabilities for struct v4l2_requestbuffers and v4l2_create_buffers */ > > > @@ -2446,7 +2449,8 @@ struct v4l2_create_buffers { > > > __u32 memory; > > > struct v4l2_format format; > > > __u32 capabilities; > > > - __u32 reserved[7]; > > > + __u32 flags; > > > > The new flags argument needs to be documented in the command for struct v4l2_create_buffers. > > Hans, what does "command for struct v4l2_create_buffers" mean? BTW, I added v4l2_create_buffers::flags comment: --- diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 12b1bd220347..c6c1cccbb5c1 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -2441,6 +2441,8 @@ struct v4l2_dbg_chip_info { * @memory: enum v4l2_memory; buffer memory type * @format: frame format, for which buffers are requested * @capabilities: capabilities of this buffer type. + * @flags: additional buffer management attributes (ignored if queue + * does not have V4L2_BUF_CAP_SUPPORTS_CACHE_HINTS capability). * @reserved: future extensions */ struct v4l2_create_buffers {
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