From: Yunfei Dong <yunfei.dong@mediatek.com>
To: Hans Verkuil <hverkuil@xs4all.nl>,
Tiffany Lin <tiffany.lin@mediatek.com>,
Rob Herring <robh+dt@kernel.org>
Cc: Yunfei Dong <yunfei.dong@mediatek.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
<linux-media@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>,
Tomasz Figa <tfiga@chromium.org>,
Alexandre Courbot <acourbot@chromium.org>
Subject: [PATCH v3,1/2] media: v4l UAPI: add V4L2_BUF_CAP_SUPPORTS_RO_REQUESTS
Date: Wed, 1 Jul 2020 17:35:21 +0800 [thread overview]
Message-ID: <20200701093522.8521-2-yunfei.dong@mediatek.com> (raw)
In-Reply-To: <20200701093522.8521-1-yunfei.dong@mediatek.com>
This patch adds support for the V4L2_BUF_CAP_SUPPORTS_RO_REQUESTS
flag. This flag is used for Read-only(Ro) Request.
Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
---
Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
index b6d52083707b..7c7451773b8e 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
@@ -126,6 +126,7 @@ aborting or finishing any DMA in progress, an implicit
.. _V4L2-BUF-CAP-SUPPORTS-REQUESTS:
.. _V4L2-BUF-CAP-SUPPORTS-ORPHANED-BUFS:
.. _V4L2-BUF-CAP-SUPPORTS-M2M-HOLD-CAPTURE-BUF:
+.. _V4L2-BUF-CAP-SUPPORTS-RO-REQUESTS:
.. cssclass:: longtable
@@ -156,6 +157,9 @@ aborting or finishing any DMA in progress, an implicit
- Only valid for stateless decoders. If set, then userspace can set the
``V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF`` flag to hold off on returning the
capture buffer until the OUTPUT timestamp changes.
+ * - ``V4L2_BUF_CAP_SUPPORTS_RO_REQUESTS``
+ - 0x00000040
+ - This buffer type supports :ref:`requests <media-request-api>`.
Return Value
============
--
2.18.0
next prev parent reply other threads:[~2020-07-01 9:36 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-01 9:35 [PATCH v3, 0/2] This patchset add read-only(Ro) request for capture queue Yunfei Dong
2020-07-01 9:35 ` Yunfei Dong [this message]
2020-07-23 8:10 ` [PATCH v3,1/2] media: v4l UAPI: add V4L2_BUF_CAP_SUPPORTS_RO_REQUESTS Hans Verkuil
2020-07-01 9:35 ` [PATCH v3,2/2] media: v4l: Add Ro request api for capture queue Yunfei Dong
2020-07-24 11:02 ` Hans Verkuil
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