[alsa-devel] plans for fireworks driver

[Takashi Sakamoto]

Doug,

 >> Then I hope you to try playback.I reccomend below process:
 >> 1. use alsamixer to change sampling rate that you hope
 >> 2. use jackd in usual way, or aplay with plughw interface
 >> 3. hear 1/2ch or not
 >
 > Alsamixer successfully changes SR and clock source.  I started jack and
 > played back and edited an ardour session with no problems.  As you said
 > earlier, capture doesn't work.  the ports are there but no signal.  Once
 > that works Ill start using this driver full time.

I'm glad to hear it. I believe you can playback with any sampling rate, 
32.0 - 96.0 kHz for AudioFire2, 32.0 - 192.0 kHz for AudioFire12.

But I cannot hear all of channels which I send. My AudioFirePre8 can 
playback 16ch (differed in current sampling rate). When I playback 16ch 
with aplay or jackd, I can hear only 1/2ch physical output...

I hope you to confirm this on your devices.


Currently my driver fully utilize ALSA's snd-firewire-lib.ko to 
transmitting (and receiving) stream. But snd-firewire-lib.ko has no 
codes for receiving (=PCM capturing). I'm under working for this.

Thanks


Takashi Sakamoto
o-takashi at sakamocchi.jp

(Mar 10 2013 18:30), Doug McLain wrote:
>> I note that your system cannot communicate to your device via FFADO
>> because the device is already used by my module. You can execute
>> "modprobe -r snd-fireworks" if you want to use FFADO.
>
> That's not true.  The ffado tools (the mixer, the discovery & diagnostic
> tools, etc) work fine whether or not the alsa module is loaded, and
> whether or not jack is running on the device.  The problem with the AF12
> and your driver was whatever the problem is with ffado and AF firmware >
> 4.8.  Somehow the Clemens snd-fireworks driver was unaffected.  I dont
> know enough about the driver and hardware to understand why, but I'm
> sure you will figure it out.  I'm glad to see progress on this driver so
> do not hesitate to ask for anything.
>
>> Then I hope you to try playback.I reccomend below process:
>> 1. use alsamixer to change sampling rate that you hope
>> 2. use jackd in usual way, or aplay with plughw interface
>> 3. hear 1/2ch or not
>
> Alsamixer successfully changes SR and clock source.  I started jack and
> played back and edited an ardour session with no problems.  As you said
> earlier, capture doesn't work.  the ports are there but no signal.  Once
> that works Ill start using this driver full time.
>
> -D