From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stefan Richter <stefanr@s5r6.in-berlin.de>
Subject: Re: Griffin FireWave stream format information
Date: Fri, 28 Feb 2014 15:09:16 +0100
Message-ID: <20140228150916.07416202@stein>
References: <530EB782.6090205@sakamocchi.jp> <20140228105632.1a436d21@stein>
 <53106DCF.5050903@sakamocchi.jp> <20140228143454.3abb69fa@stein>
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To: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Cc: "alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>, Jay Fenlason <fenlason@redhat.com>
List-Id: alsa-devel@alsa-project.org

On Feb 28 Takashi Sakamoto wrote:
>  > To recover to 5.1ch surround, please execute this command:
>  > (for 32.0kHz)
>  > $ firewire-request /dev/fw8 fcp 0x00ffbfc000000000ff0090400202010200
>  > (for 44.1kHz)
>  > $ firewire-request /dev/fw8 fcp 0x00ffbfc000000000ff0090400302010200
>  > (for 48.0kHz)
>  > $ firewire-request /dev/fw8 fcp 0x00ffbfc000000000ff0090400402010200
>  > (for 96.0kHz)
>  > $ firewire-request /dev/fw8 fcp 0x00ffbfc000000000ff0090400502010200
> 
> The last two bytes should be 0x0606.
> 
> Within this two bytes, the first byte means the number of data channels 
> and the second byte means type of the data channel. So in FireWave, 6ch 
> PCM data channel is expressed by 0x0606, 2ch IEC 60958-3 data channel is 
> expressed by 0x0200.

$ for n in 2 3 4 5; do echo $n; firewire-request /dev/fw8 fcp 0x00ffbfc000000000ff0090400${n}02010606; sleep 1; firewire-request /dev/fw8 fcp 0x01ffbfc000000000ffffffff; sleep 1; done 
2
response: 000: 09 ff bf c0 00 00 00 00 ff 00 90 40 02 02 01 06 ...........@....
response: 010: 06                                              .
response: 000: 0c ff bf c0 00 00 00 00 ff 00 90 40 02 02 01 06 ...........@....
response: 010: 06                                              .
3
response: 000: 09 ff bf c0 00 00 00 00 ff 00 90 40 03 02 01 06 ...........@....
response: 010: 06                                              .
response: 000: 0c ff bf c0 00 00 00 00 ff 00 90 40 03 02 01 06 ...........@....
response: 010: 06                                              .
4
response: 000: 09 ff bf c0 00 00 00 00 ff 00 90 40 04 02 01 06 ...........@....
response: 010: 06                                              .
response: 000: 0c ff bf c0 00 00 00 00 ff 00 90 40 04 02 01 06 ...........@....
response: 010: 06                                              .
5
response: 000: 09 ff bf c0 00 00 00 00 ff 00 90 40 05 02 01 06 ...........@....
response: 010: 06                                              .
response: 000: 0c ff bf c0 00 00 00 00 ff 00 90 40 05 02 01 06 ...........@....
response: 010: 06                                              .

-- 
Stefan Richter
-=====-====- --=- ===--
http://arcgraph.de/sr/