From patchwork Mon Feb 18 20:15:24 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ezequiel Garcia X-Patchwork-Id: 10818799 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 162DC1390 for ; Mon, 18 Feb 2019 20:15:49 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 033302BAFB for ; Mon, 18 Feb 2019 20:15:49 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id EB80F2BB37; Mon, 18 Feb 2019 20:15:48 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8A2282BAFB for ; Mon, 18 Feb 2019 20:15:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729332AbfBRUPr (ORCPT ); Mon, 18 Feb 2019 15:15:47 -0500 Received: from bhuna.collabora.co.uk ([46.235.227.227]:40850 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727341AbfBRUPr (ORCPT ); Mon, 18 Feb 2019 15:15:47 -0500 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: ezequiel) with ESMTPSA id C28B027F7BE From: Ezequiel Garcia To: linux-media@vger.kernel.org Cc: Hans Verkuil , kernel@collabora.com, Ezequiel Garcia Subject: [PATCH 0/4] Add debug messages to v4l2-ctrls Date: Mon, 18 Feb 2019 17:15:24 -0300 Message-Id: <20190218201528.21545-1-ezequiel@collabora.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Even though the goal was fairly simple (adding debug to v4l2-ctrls) it ended up spanning this little patchset. The motivation for this cleanup is being able to turn on/off debugging messages in v4l2-ctrls.c, using a knob common to the videodev driver's core. So, in addition to the dev_debug attribute, this series introduces a debug module parameter, and a new debug level, which enables v4l2-ctrl debugging. Having this is quite useful when bringing-up stateless codecs, using the Request API. Ezequiel Garcia (4): media: v4l: Simplify dev_debug flags media: v4l: Improve debug dprintk macro media: v4l: Add a module parameter to control global debugging media: v4l: ctrls: Add debug messages drivers/media/v4l2-core/v4l2-ctrls.c | 63 +++++++++++++++++++++++----- drivers/media/v4l2-core/v4l2-dev.c | 48 ++++++++++----------- include/media/v4l2-ioctl.h | 2 + 3 files changed, 78 insertions(+), 35 deletions(-)