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From: Stefan Richter <stefanr@s5r6.in-berlin.de>
To: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Cc: "alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>,
	Jay Fenlason <fenlason@redhat.com>
Subject: Re: Griffin FireWave stream format information
Date: Fri, 28 Feb 2014 14:34:54 +0100	[thread overview]
Message-ID: <20140228143454.3abb69fa@stein> (raw)
In-Reply-To: <53106DCF.5050903@sakamocchi.jp>

On Feb 28 Takashi Sakamoto wrote:
> These are correct commands:
> (for 32.0kHz)
> $ firewire-request /dev/fw8 fcp 0x00ffbfc000000000ff0090400202010200

stefan@stein ~ $ firewire-request /dev/fw8 fcp 0x00ffbfc000000000ff0090400202010200
response: 000: 09 ff bf c0 00 00 00 00 ff 00 90 40 02 02 01 02 ...........@....
response: 010: 00                                              .
stefan@stein ~ $ firewire-request /dev/fw8 fcp 0x01ffbfc000000000ffffffff
response: 000: 0c ff bf c0 00 00 00 00 ff 00 90 40 02 02 01 02 ...........@....
response: 010: 00                                              .

> (for 44.1kHz)
> $ firewire-request /dev/fw8 fcp 0x00ffbfc000000000ff0090400302010200

stefan@stein ~ $ firewire-request /dev/fw8 fcp 0x00ffbfc000000000ff0090400302010200
response: 000: 09 ff bf c0 00 00 00 00 ff 00 90 40 03 02 01 02 ...........@....
response: 010: 00                                              .
stefan@stein ~ $ firewire-request /dev/fw8 fcp 0x01ffbfc000000000ffffffff
response: 000: 0c ff bf c0 00 00 00 00 ff 00 90 40 03 02 01 02 ...........@....
response: 010: 00                                              .

> (for 48.0kHz)
> $ firewire-request /dev/fw8 fcp 0x00ffbfc000000000ff0090400402010200

stefan@stein ~ $ firewire-request /dev/fw8 fcp 0x00ffbfc000000000ff0090400402010200
response: 000: 09 ff bf c0 00 00 00 00 ff 00 90 40 04 02 01 02 ...........@....
response: 010: 00                                              .
stefan@stein ~ $ firewire-request /dev/fw8 fcp 0x01ffbfc000000000ffffffff
response: 000: 0c ff bf c0 00 00 00 00 ff 00 90 40 04 02 01 02 ...........@....
response: 010: 00                                              .

> If one of them are accepted, the stream format is changed for 2ch IEC 
> 60958-3 at indicated rate. To confirm it, please execute this command again:
> $ firewire-request /dev/fw8 fcp 0x01ffbfc000000000ffffffff
> Response should be:
> 0c ff bf c0 00 00 00 00 ff 00 90 40 0[234] 02 01 02 00

Yep, it is
  0c ff bf c0 00 00 00 00 ff 00 90 40 0[234] 02 01 02 00.

> To recover to 5.1ch surround, please execute this command:
> (for 32.0kHz)
> $ firewire-request /dev/fw8 fcp 0x00ffbfc000000000ff0090400202010200

stefan@stein ~ $ firewire-request /dev/fw8 fcp 0x00ffbfc000000000ff0090400202010200
response: 000: 09 ff bf c0 00 00 00 00 ff 00 90 40 02 02 01 02 ...........@....
response: 010: 00                                              .
stefan@stein ~ $ firewire-request /dev/fw8 fcp 0x01ffbfc000000000ffffffff
response: 000: 0c ff bf c0 00 00 00 00 ff 00 90 40 02 02 01 02 ...........@....
response: 010: 00                                              .

> (for 44.1kHz)
> $ firewire-request /dev/fw8 fcp 0x00ffbfc000000000ff0090400302010200

stefan@stein ~ $ firewire-request /dev/fw8 fcp 0x00ffbfc000000000ff0090400302010200
response: 000: 09 ff bf c0 00 00 00 00 ff 00 90 40 03 02 01 02 ...........@....
response: 010: 00                                              .
stefan@stein ~ $ firewire-request /dev/fw8 fcp 0x01ffbfc000000000ffffffff
response: 000: 0c ff bf c0 00 00 00 00 ff 00 90 40 03 02 01 02 ...........@....
response: 010: 00                                              .

> (for 48.0kHz)
> $ firewire-request /dev/fw8 fcp 0x00ffbfc000000000ff0090400402010200

stefan@stein ~ $ firewire-request /dev/fw8 fcp 0x00ffbfc000000000ff0090400402010200
response: 000: 09 ff bf c0 00 00 00 00 ff 00 90 40 04 02 01 02 ...........@....
response: 010: 00                                              .
stefan@stein ~ $ firewire-request /dev/fw8 fcp 0x01ffbfc000000000ffffffff
response: 000: 0c ff bf c0 00 00 00 00 ff 00 90 40 04 02 01 02 ...........@....
response: 010: 00                                              .

> (for 96.0kHz)
> $ firewire-request /dev/fw8 fcp 0x00ffbfc000000000ff0090400502010200

stefan@stein ~ $ firewire-request /dev/fw8 fcp 0x00ffbfc000000000ff0090400502010200
response: 000: 09 ff bf c0 00 00 00 00 ff 00 90 40 05 02 01 02 ...........@....
response: 010: 00                                              .
stefan@stein ~ $ firewire-request /dev/fw8 fcp 0x01ffbfc000000000ffffffff
response: 000: 0c ff bf c0 00 00 00 00 ff 00 90 40 05 02 01 02 ...........@....
response: 010: 00                                              .

> To confirm it, please execute this command again:
> $ firewire-request /dev/fw8 fcp 0x01ffbfc000000000ffffffff
> 
> Response should be:
> 0c ff bf c0 00 00 00 00 ff 00 90 40 0[2345] 02 01 06 06

Nope, it is only
  0c ff bf c0 00 00 00 00 ff 00 90 40 0[2345] 02 01 02 00.
-- 
Stefan Richter
-=====-====- --=- ===--
http://arcgraph.de/sr/

  reply	other threads:[~2014-02-28 13:34 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <530EB782.6090205@sakamocchi.jp>
2014-02-28  9:56 ` Griffin FireWave stream format information Stefan Richter
2014-02-28 11:06   ` Takashi Sakamoto
2014-02-28 13:34     ` Stefan Richter [this message]
2014-02-28 13:51       ` Takashi Sakamoto
2014-02-28 14:09         ` Stefan Richter
2014-02-28 14:39           ` Takashi Sakamoto

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