[alsa-devel] [PATCH] ASOC:DAPM: extend dapm kcontrol to support runtime route update

[Nenghua Cao]

Hi, Mark:

On 12/12/2013 07:07 PM, Mark Brown wrote:
> On Thu, Dec 12, 2013 at 02:56:08AM -0800, Nenghua Cao wrote:
> 
> Don't top post.  Please also fix your mailer to word wrap within
> paragaphs, it makes your mails much more legible.
> 
It is my fault and Thanks for your kindly reminder. I just made my
mailer work as community's request.
>> >    For common mix/mux which aren't related with DPCM, it doesn't need
>> >    to do DPCM update. And it still can use the old controls. But for
>> >    the mix/mux which impacts fe<->be link, they need to do this works.
>> >    For them, they call use the new set of controls. I think it can
>> >    make our code has better backward-compatibility.
> How does this improve backwards compatibility?
My thought is that we distinguish different requirement through flag
(you can find dpcm_checked in my patch).

Thanks