From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: [PATCH 17/53] ALSA: x86: Drop unused hw_silence field Date: Thu, 02 Feb 2017 21:04:52 +0100 Message-ID: References: <20170202170307.24484-1-tiwai@suse.de> <20170202170307.24484-19-tiwai@suse.de> <110ce179-24f5-9898-3d26-44e4c559e55a@linux.intel.com> Mime-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by alsa0.perex.cz (Postfix) with ESMTP id A7EEF2668AD for ; Thu, 2 Feb 2017 21:04:53 +0100 (CET) In-Reply-To: <110ce179-24f5-9898-3d26-44e4c559e55a@linux.intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: Pierre-Louis Bossart Cc: alsa-devel@alsa-project.org, Jerome Anand List-Id: alsa-devel@alsa-project.org On Thu, 02 Feb 2017 20:11:10 +0100, Pierre-Louis Bossart wrote: > > On 2/2/17 11:02 AM, Takashi Iwai wrote: > > It's nowhere used. Let's drop it. > > That's one of the things I wanted to add. When you start playback > there is a 1-2s period where the receiver is still looking at the data > to figure out if it's PCM or compressed, and you lose those 1-2s of > audio. The hw silence mode is a way to keep the link active. I see. Yes, the feature would be useful. > But I guess we can remove first and re-add later so no objections. Agreed. How would it be actually implemented? Just avoid to turn off the audio config bits at trigger callback, etc? Since the runtime PM will be in the same game, we'll have to cope with it, too. thanks, Takashi