From: Takashi Iwai <tiwai@suse.de>
To: Paul Davis <paul@linuxaudiosystems.com>
Cc: Peter Vollmer <remllov_@gmx.de>, alsa-devel@lists.sourceforge.net
Subject: Re: snd_async_add_pcm_handler() and SND_PCM_ACCESS_MMAP_INTERLEAVED
Date: Thu, 15 May 2003 14:55:56 +0200 [thread overview]
Message-ID: <s5hwugse5cz.wl@alsa2.suse.de> (raw)
In-Reply-To: <E19GHcA-000164-00@sc8-sf-list1.sourceforge.net>
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
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next prev parent reply other threads:[~2003-05-15 12:55 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-15 8:23 snd_async_add_pcm_handler() and SND_PCM_ACCESS_MMAP_INTERLEAVED Peter Vollmer
2003-05-15 9:11 ` Jaroslav Kysela
2003-05-15 12:18 ` Paul Davis
2003-05-15 12:55 ` Takashi Iwai [this message]
2003-05-15 13:52 ` Paul Davis
2003-05-15 14:05 ` Jaroslav Kysela
2003-05-15 14:28 ` Paul Davis
[not found] <Your message of "Thu, 15 May 2003 10:23:41 +0200." <5.1.0.14.2.20030515095924.03421e38@pop.gmx.net>
[not found] ` <20030515121341.10071gmx1@mx009.gmx.net>
2003-05-15 12:35 ` Peter Vollmer
2003-05-15 13:50 ` Paul Davis
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