[alsa-devel] [RFC][PATCH 00/15 v4] OXFW driver, a succesor to firewire-speakers
Clemens Ladisch
clemens at ladisch.de
Tue Aug 12 09:09:54 CEST 2014
Takashi Sakamoto wrote:
> On Aug 11 2014 00:54, Clemens Ladisch wrote:
>> The old driver configured nothing but the rate. Is there any mechanism
>> to set the stream format?
>
> Yes. It's AV/C stream format information command.
> [...]
> But in this series of patches, I don't use this command. I expected the
> models to change stream format according to parameters in AMDTP packets
> such like the value of dbs field.
Apparently, the firmware doesn't support automatic format detection
completely, and requires this command for the 2ch 32/44.1 kHz modes.
(That 2ch at 96 kHz actually works is even more curious. There already
is that bug regarding listing the seventh format; it's possible that
they completely forgot to report an eighth format.)
Regards,
Clemens
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