From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from bhuna.collabora.co.uk ([46.235.227.227]:54138 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752068AbeEDUIa (ORCPT ); Fri, 4 May 2018 16:08:30 -0400 From: Ezequiel Garcia To: linux-media@vger.kernel.org Cc: kernel@collabora.com, Hans Verkuil , Mauro Carvalho Chehab , Shuah Khan , Pawel Osciak , Alexandre Courbot , Sakari Ailus , Brian Starkey , linux-kernel@vger.kernel.org, Gustavo Padovan , Ezequiel Garcia Subject: [PATCH v9 13/15] v4l: introduce the fences capability Date: Fri, 4 May 2018 17:06:10 -0300 Message-Id: <20180504200612.8763-14-ezequiel@collabora.com> In-Reply-To: <20180504200612.8763-1-ezequiel@collabora.com> References: <20180504200612.8763-1-ezequiel@collabora.com> Sender: linux-media-owner@vger.kernel.org List-ID: From: Gustavo Padovan Drivers capable of using fences (vb2 drivers) should report the V4L2_CAP_FENCES to userspace, so add this flag to the uapi. v2: minor doc/english fix (Hans Verkuil) Signed-off-by: Gustavo Padovan --- Documentation/media/uapi/v4l/vidioc-querycap.rst | 3 +++ include/uapi/linux/videodev2.h | 1 + 2 files changed, 4 insertions(+) diff --git a/Documentation/media/uapi/v4l/vidioc-querycap.rst b/Documentation/media/uapi/v4l/vidioc-querycap.rst index 66fb1b3d6e6e..df3ad57f07a3 100644 --- a/Documentation/media/uapi/v4l/vidioc-querycap.rst +++ b/Documentation/media/uapi/v4l/vidioc-querycap.rst @@ -254,6 +254,9 @@ specification the ioctl returns an ``EINVAL`` error code. * - ``V4L2_CAP_TOUCH`` - 0x10000000 - This is a touch device. + * - ``V4L2_CAP_FENCES`` + - 0x20000000 + - The device supports explicit synchronization. * - ``V4L2_CAP_DEVICE_CAPS`` - 0x80000000 - The driver fills the ``device_caps`` field. This capability can diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 1f18dc68ecab..cab35fca7c7f 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -460,6 +460,7 @@ struct v4l2_capability { #define V4L2_CAP_STREAMING 0x04000000 /* streaming I/O ioctls */ #define V4L2_CAP_TOUCH 0x10000000 /* Is a touch device */ +#define V4L2_CAP_FENCES 0x20000000 /* Supports explicit synchronization */ #define V4L2_CAP_DEVICE_CAPS 0x80000000 /* sets device capabilities field */ -- 2.16.3