From: Clemens Ladisch <clemens@ladisch.de>
To: David Henningsson <david.henningsson@canonical.com>
Cc: Takashi Iwai <tiwai@suse.de>, alsa-devel@alsa-project.org
Subject: Re: [RFC] Channel mapping API
Date: Tue, 21 Aug 2012 13:44:15 +0200 [thread overview]
Message-ID: <5033748F.40509@ladisch.de> (raw)
In-Reply-To: <50337005.7090404@canonical.com>
David Henningsson wrote:
> 5) I'm not sure I'm getting the _VAR and _PAIRED types, even though
> I read the documentation. Is this for the query only?
AFAIU this types appear only in the TLV, which is read only. The TLV
documents what channel configurations are possible, while the current
configuration is read/changed through the control value, which is
a plain array of integers, one for each channel, without headers.
So _VAR implies that the control's value can be set to any permutation
of the channels in the TLV.
Regards,
Clemens
next prev parent reply other threads:[~2012-08-21 11:44 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-21 10:31 [RFC] Channel mapping API Takashi Iwai
2012-08-21 11:24 ` David Henningsson
2012-08-21 11:44 ` Clemens Ladisch [this message]
2012-08-21 12:06 ` Takashi Iwai
2012-08-21 13:13 ` Takashi Iwai
2012-08-21 11:37 ` Clemens Ladisch
2012-08-21 12:15 ` Takashi Iwai
2012-08-21 12:31 ` Jaroslav Kysela
2012-08-21 12:35 ` Takashi Iwai
2012-08-21 13:14 ` Takashi Iwai
2012-08-21 14:00 ` David Henningsson
2012-08-21 14:06 ` Mark Brown
2012-08-21 14:13 ` David Henningsson
2012-08-21 14:18 ` Mark Brown
2012-08-21 14:49 ` Takashi Iwai
2012-08-21 15:38 ` Clemens Ladisch
2012-08-21 16:27 ` Mark Brown
2012-08-21 17:05 ` Takashi Iwai
2012-08-21 17:11 ` Mark Brown
2012-08-21 19:29 ` Takashi Iwai
2012-08-21 15:49 ` Mark Brown
2012-08-21 14:52 ` David Henningsson
2012-08-21 15:07 ` Mark Brown
2012-08-21 15:38 ` David Henningsson
2012-08-21 16:34 ` Mark Brown
2012-08-21 17:09 ` Takashi Iwai
2012-08-21 17:57 ` Mark Brown
2012-08-21 13:59 ` Mark Brown
2012-08-21 14:08 ` Takashi Iwai
2012-08-21 14:12 ` Mark Brown
2012-08-21 18:03 ` Pierre-Louis Bossart
2012-08-21 19:23 ` Takashi Iwai
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