[alsa-devel] [PATCH v2 09/10] ASoC: topology: Change stream formats to bitwise flag

Mark Brown broonie at kernel.org
Sat Aug 15 18:51:47 CEST 2015


On Sat, Aug 15, 2015 at 03:25:18PM +0000, Lin, Mengdong wrote:

> In addition, does "disable this API/ABI for 4.2" mean disabling all
> topology features, or only some structures for v4.2?  But alsa-lib
> already integrated this ABI version.

I'm suggesting not including this at all in the v4.2 release so we can
continue to make changes, or perhaps just leaving the code there but
making sure it can't be used as Takashi suggested.  alsa-lib hasn't
released yet as far as I'm aware so we can continue to make changes
there.

> I'm worried that If we have to add new fields to ABI structures, how
> to keep the backward compatibility.

Right, it's tricky - there's a bunch of techniques like the versioning
that's in the current structures but they all take work and effort.
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