From patchwork Mon Jun 22 01:52:26 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yunfei Dong X-Patchwork-Id: 11616829 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C4765912 for ; Mon, 22 Jun 2020 01:55:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A98D82078E for ; Mon, 22 Jun 2020 01:55:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="hjEyKt3i" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726671AbgFVBzV (ORCPT ); Sun, 21 Jun 2020 21:55:21 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:18013 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726579AbgFVBzU (ORCPT ); Sun, 21 Jun 2020 21:55:20 -0400 X-UUID: b7d23be7ed1a4b62b931b1b8c0bc6cfe-20200622 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=NCLao9xja/z/UOC7Zzg8iO34wroh+bPww07IWqMYaLk=; b=hjEyKt3io3eUZtLFJUuMlPIB39beNwraaLB654RU0j7ofAzCEO4hZDAbEEIFWTq4ThoM49bd+gY3f1yi9Q4IBALopB0fWAJcAHfDutW3XDmEsc+eR8qkI3lnQHDbcsWhyi4HZhNcWn999uLDMPmUq7nr82Y0enUMbINQFsl1/AA=; X-UUID: b7d23be7ed1a4b62b931b1b8c0bc6cfe-20200622 Received: from mtkcas08.mediatek.inc [(172.21.101.126)] by mailgw02.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 1920484331; Mon, 22 Jun 2020 09:55:15 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs08n1.mediatek.inc (172.21.101.55) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 22 Jun 2020 09:55:13 +0800 Received: from localhost.localdomain (10.17.3.153) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 22 Jun 2020 09:55:03 +0800 From: Yunfei Dong To: Hans Verkuil , Tiffany Lin , Rob Herring CC: Yunfei Dong , Mauro Carvalho Chehab , Mark Rutland , Matthias Brugger , , , , , , Tomasz Figa Subject: [PATCH v2, 1/2] media: v4l UAPI: add V4L2_BUF_CAP_SUPPORTS_RO_REQUESTS Date: Mon, 22 Jun 2020 09:52:26 +0800 Message-ID: <20200622015227.24134-2-yunfei.dong@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200622015227.24134-1-yunfei.dong@mediatek.com> References: <20200622015227.24134-1-yunfei.dong@mediatek.com> MIME-Version: 1.0 X-MTK: N Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org 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 --- 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 `. Return Value ============