From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 614A6C64EB1 for ; Thu, 6 Dec 2018 15:35:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2512C214F1 for ; Thu, 6 Dec 2018 15:35:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1544110504; bh=s6WY+tz5c2+iQ4QYO3iULWxTQFADQnGBAVuv6cbweuQ=; h=Subject:To:Cc:References:From:Date:In-Reply-To:List-ID:From; b=fks79S4rf9OBB4e+nTo9hsIvzkO3vTG/tlBEp8QfHhhOE8GHE8E6xxnNcD8rhP8ga JVix8oIQBy8Gwd+px38ElzKPsxguKMlHPQZrdRFCF/M2CrYyHREyU69Xoagn1GRpHj 5nGnFU20EZ9iCUNRRzaDbw14n67ykjReNqtYBJZU= DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2512C214F1 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-media-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726044AbeLFPe7 (ORCPT ); Thu, 6 Dec 2018 10:34:59 -0500 Received: from mail.kernel.org ([198.145.29.99]:42042 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726024AbeLFPe7 (ORCPT ); Thu, 6 Dec 2018 10:34:59 -0500 Received: from [192.168.1.112] (c-24-9-64-241.hsd1.co.comcast.net [24.9.64.241]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 1F4F821479; Thu, 6 Dec 2018 15:34:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1544110498; bh=s6WY+tz5c2+iQ4QYO3iULWxTQFADQnGBAVuv6cbweuQ=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=dLU9M3MP0sQIITtAPC46Bdgv7+xQCcDQpwfsmnbWmzw9EksexUHwtFFFff9WODOhY EaBz4lJi+nMxnt5dV1oUONtNVcyzHtXYtg4Lt6mhmkvDwPfSoc6i2UTkA9OLxVRJc7 3S5gObvzs9jMIKbZuv39IRGR433iUyYMc8b66isA= Subject: Re: [RFC PATCH v8 4/4] sound/usb: Use Media Controller API to share media resources To: Hans Verkuil , mchehab@kernel.org, perex@perex.cz, tiwai@suse.com Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org, shuah References: <0b919080-669a-a266-c85c-66dc724a536b@xs4all.nl> From: shuah Message-ID: <3aef49a1-2dd7-c6c6-7c2e-5ba3cc76a695@kernel.org> Date: Thu, 6 Dec 2018 08:34:57 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: <0b919080-669a-a266-c85c-66dc724a536b@xs4all.nl> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Hi Hans, On 11/20/18 4:54 AM, Hans Verkuil wrote: > On 11/02/2018 01:31 AM, shuah@kernel.org wrote: >> From: Shuah Khan >> >> Change ALSA driver to use Media Controller API to share media resources >> with DVB, and V4L2 drivers on a AU0828 media device. >> >> Media Controller specific initialization is done after sound card is >> registered. ALSA creates Media interface and entity function graph >> nodes for Control, Mixer, PCM Playback, and PCM Capture devices. >> >> snd_usb_hw_params() will call Media Controller enable source handler >> interface to request the media resource. If resource request is granted, >> it will release it from snd_usb_hw_free(). If resource is busy, -EBUSY is >> returned. >> >> Media specific cleanup is done in usb_audio_disconnect(). >> >> Signed-off-by: Shuah Khan Thanks for the review. Fixing them all in the next revision. -- Shuah