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[209.132.180.67]) by mx.google.com with ESMTP id f9si44346966pgq.347.2019.04.15.16.42.24; Mon, 15 Apr 2019 16:42:40 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728193AbfDOXlc (ORCPT + 99 others); Mon, 15 Apr 2019 19:41:32 -0400 Received: from vps-vb.mhejs.net ([37.28.154.113]:49466 "EHLO vps-vb.mhejs.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727201AbfDOXlc (ORCPT ); Mon, 15 Apr 2019 19:41:32 -0400 Received: from MUA by vps-vb.mhejs.net with esmtps (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.90_1) (envelope-from ) id 1hGBE9-0006tS-97; Tue, 16 Apr 2019 01:41:29 +0200 Subject: Re: [PATCH v9 4/4] [media] cxusb: add raw mode support for Medion MD95700 To: Hans Verkuil Cc: Michael Krufky , Mauro Carvalho Chehab , Andy Walls , linux-kernel , linux-media@vger.kernel.org References: <9ee1804b53cdeccde17826a58c17092400795b67.1553903063.git.mail@maciej.szmigiero.name> <9f526004-c431-3b1e-71bf-9cb1a795ae81@xs4all.nl> From: "Maciej S. Szmigiero" Openpgp: preference=signencrypt Autocrypt: addr=mail@maciej.szmigiero.name; prefer-encrypt=mutual; keydata= mQINBFpGusUBEADXUMM2t7y9sHhI79+2QUnDdpauIBjZDukPZArwD+sDlx5P+jxaZ13XjUQc 6oJdk+jpvKiyzlbKqlDtw/Y2Ob24tg1g/zvkHn8AVUwX+ZWWewSZ0vcwp7u/LvA+w2nJbIL1 N0/QUUdmxfkWTHhNqgkNX5hEmYqhwUPozFR0zblfD/6+XFR7VM9yT0fZPLqYLNOmGfqAXlxY m8nWmi+lxkd/PYqQQwOq6GQwxjRFEvSc09m/YPYo9hxh7a6s8hAP88YOf2PD8oBB1r5E7KGb Fv10Qss4CU/3zaiyRTExWwOJnTQdzSbtnM3S8/ZO/sL0FY/b4VLtlZzERAraxHdnPn8GgxYk oPtAqoyf52RkCabL9dsXPWYQjkwG8WEUPScHDy8Uoo6imQujshG23A99iPuXcWc/5ld9mIo/ Ee7kN50MOXwS4vCJSv0cMkVhh77CmGUv5++E/rPcbXPLTPeRVy6SHgdDhIj7elmx2Lgo0cyh uyxyBKSuzPvb61nh5EKAGL7kPqflNw7LJkInzHqKHDNu57rVuCHEx4yxcKNB4pdE2SgyPxs9 9W7Cz0q2Hd7Yu8GOXvMfQfrBiEV4q4PzidUtV6sLqVq0RMK7LEi0RiZpthwxz0IUFwRw2KS/ 9Kgs9LmOXYimodrV0pMxpVqcyTepmDSoWzyXNP2NL1+GuQtaTQARAQABtDBNYWNpZWogUy4g U3ptaWdpZXJvIDxtYWlsQG1hY2llai5zem1pZ2llcm8ubmFtZT6JAlQEEwEIAD4WIQRyeg1N 257Z9gOb7O+Ef143kM4JdwUCWka6xQIbAwUJA8JnAAULCQgHAgYVCgkICwIEFgIDAQIeAQIX 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t900RCBHu4tktOhPc3J1ep/e2WAJ4ngUqJhilzyCJnzVJ4cT79VK/uPtlfUCZdUz+jTC88Tm P1p5wlucS31kThy/CV4cqDFB8yzEujTSiRzd7neG3sH0vcxBd69uvSxLZPLGID840k0v5sft PA== Message-ID: Date: Tue, 16 Apr 2019 01:41:23 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <9f526004-c431-3b1e-71bf-9cb1a795ae81@xs4all.nl> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12.04.2019 11:27, Hans Verkuil wrote: > On 3/30/19 12:51 AM, Maciej S. Szmigiero wrote: >> This adds raw (unprocessed) BT.656 stream capturing support for the analog >> part of Medion 95700. >> It can be enabled by setting CXUSB_EXTENDEDMODE_CAPTURE_RAW flag in >> parm.capture.extendedmode passed to VIDIOC_S_PARM. > > What is the point of this feature? I think this should just be dropped. It simply provides an ability to capture a raw BT.656 stream as received by the driver from the device. This functionality is very useful for both debugging and for developing the driver features. Since I have to prepare this part anyway to make sure it's not broken by some newly introduced change I am posting this, too. > Regards, > > Hans > Thanks and best regards, Maciej