[alsa-devel] FW: [Alsa-user] raw spdif frame capture

Brett Andrews bandrews at broadcom.com
Sat May 31 05:35:54 CEST 2008


Anyone have any ideas about the following?  As a side note, when I saw
raw I don't mean 61937 raw (just preambles and payload), I mean 60958
raw (block sync, payload, VUCP).


-----Original Message-----
From: stan [mailto:ghjeold_i_mwee at cox.net]
Sent: Friday, May 30, 2008 18:31
To: Brett Andrews
Cc: alsa-user at lists.sourceforge.net
Subject: Re: [Alsa-user] raw spdif frame capture

Brett Andrews wrote:
> Hi:
> I would like to perform raw spdif frame capture (all 64-bits, in 2 
> 32-bit subframes) using an EMU 1212M under ALSA.  Can this be done?
> If so, has anyone else already done it?  If not, does anyone have any 
> idea how to do it?  EMU has claimed that it is possible with the 
> hardware, but that the driver would need to support it (windows driver

> does not, they didn't know about the ALSA driver).  Does the current
> emu10k1 driver support this?  How would I enter this mode?
> Thanks,
> Brett Andrews
> Software Engineer
> BSE Reference Software
I haven't got a lot of help for you as I'm not knowledgeable about this
but I can give you some suggestions.

You could ask you question on alsa-devel mailing list as they know the
internals and might be able to answer your question directly.

You could look at the alsa driver code.  Go to
ftp://ftp.alsa-project.org/pub/driver/ and download
This is the latest official alsa version.  Unpack it and then look in
"top level"/alsa-kernel/pci/emu10k1.  That has the C source.

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