[alsa-devel] [PATCH 06/13] speakers: Change the way to make PCM rules/constraints

[Stefan Richter]

On Jan 12 Takashi Sakamoto wrote:
> Hi Stefan,
> 
>  > I have got both devices.  I could perform specific tests with them if
>  > you want and give me instructions.  It can be a very slow process
>  > though because I have got almost no spare time, at least throughout
>  > January and February.
> 
> Thank you. Please confirm these items below with Clemens' jujuutils when 
> you have a free  time:

Thanks for these straightforward instructions.  Here are the results.

> 1.They have both iPCR/oPCR.
>   $ ./firewire-request /dev/fw1 read 0xfffff0000900 (oMPR)
>   $ ./firewire-request /dev/fw1 read 0xfffff0000980 (iMPR)
> If they have, I can apply the same way to change sampling rate for all 
> of models.

LaCie Speakers:
---------------
$ firewire-request /dev/fw7 read 0xfffff0000900
result: 80ff0000
$ firewire-request /dev/fw7 read 0xfffff0000980
result: 80ff0001

Griffin FireWave:
-----------------
$ firewire-request /dev/fw8 read 0xfffff0000900
result: 80ff0000
$ firewire-request /dev/fw8 read 0xfffff0000980
result: 80ff0001


> 2.They can respond to 'SINGLE' subfunction of 'AV/C Stream Format 
> Information' command.
>    $ ./firewire-request /dev/fw1 fcp  0x01ffbfc000000000ffffffff
>     response: 000: 0c ff bf c0 00 00 00 00 ff 00 90 40 04 02 01 02 ........... at ....
>     response: 010: 06
>    This is an example of Behringer F-Control A 202(OXFW970).

LaCie Speakers:
---------------
$ firewire-request /dev/fw7 fcp 0x01ffbfc000000000ffffffff
response: 000: 0c ff bf c0 00 00 00 00 ff 00 90 40 04 02 01 02 ........... at ....
response: 010: 06                                              .

Griffin FireWave:
-----------------
$ firewire-request /dev/fw8 fcp 0x01ffbfc000000000ffffffff
response: 000: 0c ff bf c0 00 00 00 00 ff 00 90 40 04 02 01 06 ........... at ....
response: 010: 06                                              .


> 3.They can respond to 'LIST' subfunction of 'AV/C Stream Format 
> Information' command.
>    $ ./firewire-request /dev/fw1 fcp  0x01ffbfc100000000ffff01ff
>    I have no devices which supports this command. I guess OXFW971 
> supports this.

LaCie Speakers:
---------------
$ firewire-request /dev/fw7 fcp 0x01ffbfc100000000ffff01ff
response: 000: 0c ff bf c1 00 00 00 00 ff 00 01 90 40 03 02 01 ............ at ...
response: 010: 02 06                                           ..

Griffin FireWave:
-----------------
$ firewire-request /dev/fw8 fcp 0x01ffbfc100000000ffff01ff
response: 000: 0c ff bf c1 00 00 00 00 ff 00 01 90 40 02 02 01 ............ at ...
response: 010: 06 06                                           ..

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