[alsa-devel] [PATCH] topology: Add API to set a vendor specific version number

Liam Girdwood liam.r.girdwood at intel.com
Wed Sep 23 11:24:22 CEST 2015


+ Vinod

On Wed, 2015-09-23 at 10:48 +0200, Takashi Iwai wrote:
> On Wed, 16 Sep 2015 11:07:13 +0200,
> mengdong.lin at intel.com wrote:
> > 
> > From: Mengdong Lin <mengdong.lin at intel.com>
> > 
> > This vendor-specific version number is optional. It will be written to
> > the 'version' field of each block header of the binary toplogy data file.
> > The vendor driver can check this number for further processing in kernel.
> > 
> > The topology ABI version number is still stored in the 'abi' field of
> > block headers.
> > 
> > Signed-off-by: Mengdong Lin <mengdong.lin at intel.com>
> > Reviewed-by: Liam Girdwood <liam.r.girdwood at linux.intel.com>
> 
> Thanks, applied now.  But I have concern about topology ABI/API: have
> we stabilized it enough?  That is, are there any missing patches in
> the current kernel and alsa-lib/utils git trees that may lead to any
> API/ABI incompatibilities?

There are a couple of patches that are ABI changes afaik for PCM
config/capabilities.

Mengdong, can you point us to your latest code for alsa-lib and kernel
with the ABI updates. We can then review the final changes.

Vinod, Subhransu, please shout if there is anything missing from the
final ABI updates in Mengdongs alsa-lib/kernel branches.

Thanks

Liam

> 
> 
> Takashi


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