[alsa-devel] [PATCH 3/3 v2] sound/soc/lapis: add platform driver for ML7213 IOH I2S

[Tomoya MORINAGA]

2011/12/26 Mark Brown <broonie at opensource.wolfsonmicro.com>:
> On Mon, Dec 26, 2011 at 03:33:29PM +0900, Tomoya MORINAGA wrote:
>> 2011/12/22 Mark Brown <broonie at opensource.wolfsonmicro.com>:
>
>> >> Not sorted but queuing only.
>> >> In sound/voice control system, queuing is not rare, I think.
>> >> If necessary, though this method is very common, I can send the method
>> >> of the queue.
>
>> > No, please describe the problem you're trying to fix.
>
>> When CPU is heavy load, this buffer is useful.
>> The heavy load causes delaying receiving processing.
>> If there is no buffer, stream sound/voice can be broken.
>> If there is the buffer, it can prevent the broken sound.
>
> So you're just talking about standard underflows if the application
> can't keep up?
No. not only underflow but overflow.

> There's *no* reason for your driver to do anything about
> this, it's a really basic thing that affects all audio hardware.  Just
> write a driver for the hardware.
In case driver layer doesn't have the function,
which part works for the under/overflow ? Application ? or nothing ?

tomoya