[alsa-devel] ALSA snd-fireworks Echo AudioFire 2

Clemens Ladisch clemens at ladisch.de
Mon Aug 25 22:42:56 CEST 2014


Clemens Ladisch wrote:
> Harry van Haaren wrote:
>> [  190.433203] snd-fireworks fw1.0: Detect discontinuity of CIP: 00 0A
>> [  190.591959] snd-fireworks fw1.0: Detect discontinuity of CIP: 00 02
>> [  190.749202] snd-fireworks fw1.0: Detect discontinuity of CIP: 00 12
>> [  190.908270] snd-fireworks fw1.0: Detect discontinuity of CIP: 00 12
>> [  191.066267] snd-fireworks fw1.0: Detect discontinuity of CIP: 00 0A
>> [  191.225139] snd-fireworks fw1.0: Detect discontinuity of CIP: 00 02
>> [  191.383942] snd-fireworks fw1.0: Detect discontinuity of CIP: 00 02
>>
>> JACK also reports xruns, same as before: flashing the firmware to the
>> latest doesn't seem to have changed anything. The firmware of this
>> device was at 5.7 before the flash, perhaps its "too new" for
>> snd-fireworks in its current state?
>
> I suspect these counter values are generated by the hardware; I don't
> think that the firmware can do anything to affect this.

I do not get any discontinuities with ARM firmware 3.0.2.
So much for that theory.


Anyway, if you're up to experimentation, try removing the entire
"if (lost)" block from sound/firewire/amdtp.c, and recompiling the
drivers.  (This will make the driver accept all packets, without
fixing the wrong order.)


Regards,
Clemens


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