From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: [PATCH] make snd-aloop loopback device work Date: Wed, 17 Jan 2007 16:08:48 +0100 Message-ID: References: <20061220225811.GB705@mathematik.uni-freiburg.de> <20061228021057.GA8823@mathematik.uni-freiburg.de> Mime-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset="iso-8859-3" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <20061228021057.GA8823@mathematik.uni-freiburg.de> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@lists.sourceforge.net Errors-To: alsa-devel-bounces@lists.sourceforge.net To: Ahmet =?ISO-8859-3?Q?=A9nan?= Cc: alsa-devel@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org At Thu, 28 Dec 2006 03:10:58 +0100, Ahmet =A9nan wrote: > = > well i couldnt really sleep well so ive created one more patch .. > = > got the non-copying version finished and also solved the HZ>100 problem f= or > weird rates like 44100 :) > = > so there is no memory leak annymore, that im aware of. > = > removed the copying version tho, couse it was too much code and it > started to get real ugly while i was trying to get both versions working. > imho its not really worth keeping it, but will keep the version somewhere > around if annyone might be interested in it .. > = > tried also various apps, using mmap and rw in various combinations and it > just works. i only get every now and then an underrun / overrun. but im g= oing > to investigate that as soon as i get started playing around with my > userspace app. > = > i also experienced something weird: > when using oss emulation and synchronizing at start trigger, the oss apps > behave very strange, like playing ffwd. alsa native apps behave correct. > this is why i have the SND_CARD_LOOPBACK_START_SYNC switch now, default is > not to sync .. will investigate that too, but for me that is not really an > issue, couse if i want better worst case latency, i use a smaller buffer = size. > = > files: > http://www.mathematik.uni-freiburg.de/IAM/homepages/ainan/alsa-driver-1.0= .13-aloop-ainan-patch.diff > http://www.mathematik.uni-freiburg.de/IAM/homepages/ainan/aloop-kernel.c OK, I'd like to commit your patch to HG tree. The driver is more or less experimental. Do you have more newer version? Anyway, please give a proper changelog and a sign-off to commit. Thanks, Takashi ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=3Djoin.php&p=3Dsourceforge&CID=3DDE= VDEV