[PATCH alsa-lib 0/5] Add generic exception mechanism for non-standard control-names

[Hans de Goede]

Hi,

On 5/4/21 10:53 AM, Jaroslav Kysela wrote:
> Dne 03. 05. 21 v 22:52 Hans de Goede napsal(a):
>> Hi All,
>>
>> This series seems to have fallen through the cracks,
>> so here is a resend of it.
>>
>> Regards,
> 
> Thank you, Hans. The problem with this implementation is that it's really card
> specific. Also, ASoC codec drivers have usually ID names based on registers so
> the mapping for the user is problematic anyway (the functionality is different
> from the name or not related to the name). I'm actually evaluating another
> solution which is more flexible:
> 
> 1) add control remap plugin to allow the control ID remapping in the
> alsa-lib's control API, so we can mangle those identifiers there (already
> implemented)
> 
> 2) add local and global alsa-lib configurations per UCM card specified in the
> UCM configuration files; the configurations may be for both control and PCM
> devices (restrict or set specific parameters)

p.s.

Note that the first patch in this series also fixes a regression,
quoting from the commit message:

This also fixes the "Capture Volume" and "Capture Switch" exceptions
no longer working after commit 86b9c67774bc ("mixer: simple - Unify
simple_none: base_len() exception handling") because they were moved
to after the suffix checking, so they would be treated as
CTL_GLOBAL_VOLUME resp. CTL_GLOBAL_SWITCH based on their suffix
before the exception check has a chance to check for a match.

In the first patch of this series fixing this regression is a
side-effect of the changes made there.

Since you don't want to take this series, I'll write a new patch
fixing just the regression.

Regards,

Hans