From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: snd_async_add_pcm_handler() and SND_PCM_ACCESS_MMAP_INTERLEAVED Date: Thu, 15 May 2003 14:55:56 +0200 Sender: alsa-devel-admin@lists.sourceforge.net Message-ID: References: <5.1.0.14.2.20030515095924.03421e38@pop.gmx.net> Mime-Version: 1.0 (generated by SEMI 1.14.4 - "Hosorogi") Content-Type: text/plain; charset=US-ASCII Return-path: In-Reply-To: Errors-To: alsa-devel-admin@lists.sourceforge.net List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: Paul Davis Cc: Peter Vollmer , alsa-devel@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org At Thu, 15 May 2003 08:18:53 -0400, Paul Davis wrote: > > >I am trying to use the mmap access method together with an async_handler > >function (ice1712 in multitrack mode), > > i just want to remind anyone using the async handlers that the list of > system calls you can make in an async handler is extremely > limited. make sure you limit yourself to that list. IIRC, even ioctl is not allowed officially by POSIX. that means, almost all actions of ALSA PCM... in practice, they work fine, though :) correct me if i'm wrong here. Takashi ------------------------------------------------------- Enterprise Linux Forum Conference & Expo, June 4-6, 2003, Santa Clara The only event dedicated to issues related to Linux enterprise solutions www.enterpriselinuxforum.com