Messages in this thread | | | Date | Thu, 22 May 2008 14:36:13 +0200 | From | Clemens Ladisch <> | Subject | Re: HDMI Audio Support in ALSA |
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(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
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