From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
To: Stefan Richter <stefanr@s5r6.in-berlin.de>
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 20:06:55 +0900 [thread overview]
Message-ID: <53106DCF.5050903@sakamocchi.jp> (raw)
In-Reply-To: <20140228105632.1a436d21@stein>
Hi Stefan,
Thanks for your report.
(Feb 28 2014 18:56), Stefan Richter wrote:
> $ firewire-request /dev/fw8 fcp 0x00ffbfc100000000ff0090400202010200
> response: 000: 08 ff bf c1 00 00 00 00 ff 00 90 40 02 02 01 02 ...........@....
> response: 010: 00 .
>
> $ firewire-request /dev/fw8 fcp 0x00ffbfc100000000ff0090400302010200
> response: 000: 08 ff bf c1 00 00 00 00 ff 00 90 40 03 02 01 02 ...........@....
> response: 010: 00 .
>
> $ firewire-request /dev/fw8 fcp 0x00ffbfc100000000ff0090400402010200
> response: 000: 08 ff bf c1 00 00 00 00 ff 00 90 40 04 02 01 02 ...........@....
> response: 010: 00 .
Oh, I made a mistake again...
The subfunction should be 0xc0 (Single) instead of 0xc1 (List). 'Extend
Stream Format Information' command don't allow ctype=control for List
subfunction.
These are correct commands:
(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
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
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
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
Thanks
Takashi Sakamoto
o-takashi@sakamocchi.jp
next prev parent reply other threads:[~2014-02-28 11:07 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 [this message]
2014-02-28 13:34 ` Stefan Richter
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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