Date: Fri, 11 Jul 2008 10:00:02 +0200 From: Alexander Leidinger <Alexander@Leidinger.net> To: Matthias Apitz <matthias.apitz@oclc.org> Cc: Steve Ames <steve@energistic.com>, Piet Delport <pjdelport@gmail.com>, multimedia@freebsd.org, Rong-En Fan <rafan@freebsd.org> Subject: Re: ports/devel/pwlib and multiple sound devices Message-ID: <20080711100002.20844u2b3kvbufwg@webmail.leidinger.net> In-Reply-To: <20080711073642.GA2149@rebelion.Sisis.de> References: <20080706110137.GD2606@svm.csie.ntu.edu.tw> <20080711074951.100037zloqohmbgg@webmail.leidinger.net> <20080711073642.GA2149@rebelion.Sisis.de>
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Quoting Matthias Apitz <matthias.apitz@oclc.org> (from Fri, 11 Jul
2008 09:36:42 +0200):
> The above device nodes are only created on demand through the dynamic
> devfs(5) clone handler. Users are strongly discouraged to access them
> directly. For specific sound card access, please instead use
> /dev/dsp or
> /dev/dsp%d.
> ^^^^^^^^^^
>
> and it works fine with KDE sharing sound with all othe applications;
> what is wrong with /dev/dsp0?
There may be more than one soundcard in the system. By accessing dsp0,
you hardcode the first detected soundcard. This may be not desired by
the user.
Either provide the possibility to specify a sound device, or use
'/dev/dsp', as this allows the user to set the default soundcard. He
can decide to route '/dev/dsp' to the second or third instead of the
first detected soundcard via a config mechanism. Here's the relevant
man page text:
---snip---
hw.snd.default_unit Default sound card for systems with
multiple sound cards. When using
devfs(5), the default device for
/dev/dsp. Equivalent to a symlink from
/dev/dsp to
/dev/dsp${hw.snd.default_unit}.
hw.snd.default_auto Enable to automatically assign default
sound unit to the most recent attached
device.
---snip---
Bye,
Alexander.
--
A good programmer is someone who looks both ways before crossing a
one-way street.
-- Doug Linder
http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID = B0063FE7
http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID = 72077137
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