From: Clemens Ladisch <clemens@ladisch.de>
To: Kallol Biswas <nucleodyne@gmail.com>
Cc: Lee Revell <rlrevell@joe-job.com>, linux-kernel@vger.kernel.org
Subject: Re: HDMI Audio Support in ALSA
Date: Thu, 22 May 2008 14:36:13 +0200 [thread overview]
Message-ID: <483568BD.4040701@ladisch.de> (raw)
In-Reply-To: <438397970805211252u1d228ad8wcb1a6ef9b1251478@mail.gmail.com>
(please don't top-post!)
Kallol Biswas wrote:
> I am looking at 2.6.25.4 kernel source code. The header file pcm.h
> does not have any definition for supporting IEC 60958 or IEC 61937 frame types.
Almost all S/PDIF transmitters/receivers use SNDRV_PCM_FORMAT_S16.
(Some use S32 for 24-bit samples, but this doesn't matter for
IEC 60958/61937.)
> However, SNDRV_PCM_FMTBIT_IEC958_SUBFRAME is supported.
This is only for some early revisions of the CMI8738 chip which require
software to generate the preamble/channel status/subcode/parity bits
for each subframe.
Regards,
Clemens
next prev parent reply other threads:[~2008-05-22 12:36 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-19 16:04 HDMI Audio Support in ALSA Kallol Biswas
2008-05-19 16:16 ` Lee Revell
2008-05-19 16:38 ` Kallol Biswas
2008-05-20 8:10 ` Clemens Ladisch
[not found] ` <438397970805211252u1d228ad8wcb1a6ef9b1251478@mail.gmail.com>
2008-05-22 12:36 ` Clemens Ladisch [this message]
2008-05-23 11:05 ` Takashi Iwai
2008-05-25 4:41 ` Kallol Biswas
2008-05-26 7:16 ` Clemens Ladisch
2008-05-26 10:56 ` Takashi Iwai
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