From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Hofman Subject: Re: [PATCH v2] Add M2Tech hiFace USB-SPDIF driver Date: Mon, 22 Apr 2013 09:40:51 +0200 Message-ID: <5174E983.7050205@ivitera.com> References: <1360537887-9427-1-git-send-email-ao2@amarulasolutions.com> <1360775505-13106-1-git-send-email-ao2@amarulasolutions.com> <5172F76C.9040002@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from cable.insite.cz (static-84-242-75-189.net.upcbroadband.cz [84.242.75.189]) by alsa0.perex.cz (Postfix) with ESMTP id EC9F1260306 for ; Mon, 22 Apr 2013 09:40:55 +0200 (CEST) In-Reply-To: <5172F76C.9040002@gmail.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: Daniel Mack Cc: alsa-devel@alsa-project.org, Takashi Iwai , Antonio Ospite , Clemens Ladisch , fchecconi@gmail.com, Pietro Cipriano , alberto@amarulasolutions.com, Michael Trimarchi List-Id: alsa-devel@alsa-project.org On 20.4.2013 22:15, Daniel Mack wrote: > On 13.02.2013 18:11, Antonio Ospite wrote: >> Add driver for M2Tech hiFace USB-SPDIF interface and compatible devices. >> >> M2Tech hiFace and compatible devices offer a Hi-End S/PDIF Output >> Interface, see http://www.m2tech.biz/hiface.html > > Just curious: is there a new version of this patch set coming? I have read users report large latencies (unable to watch movies) of hiFace1 in OSX while reportedly they have not identified any major latency in windows. Perhaps the fixed PCM_PACKET_SIZE https://github.com/panicking/snd-usb-asyncaudio/blob/master/pcm.c#L25 limiting the period size https://github.com/panicking/snd-usb-asyncaudio/blob/master/pcm.c#L98 does not have to be a single relatively large value? Thanks, Pavel.