[alsa-devel] [PATCH v2 01/13] conf/ucm: bytcr-rt5645: Use the generic bytcr/PlatformEnableSeq.conf

[Takashi Iwai]

On Mon, 26 Nov 2018 14:40:48 +0100,
Hans de Goede wrote:
> 
> > some of the recently added UCM profiles are the files to be included
> > by others, and they are not card targets.  Unfortunately alsaucm
> > doesn't know about it, and it aborts with error, e.g.
> >
> > ====
> > % alsaucm
> > ALSA lib utils.c:67:(uc_mgr_config_load) could not open configuration file /usr/share/alsa/ucm/bytcr/bytcr.conf
> > ALSA lib parser.c:1427:(load_master_config) error: could not parse configuration for card bytcr
> > alsaucm: unable to obtain card list: No such file or directory
> > ====
> >
> > The similar error is found in nau8824, rt5640 and rt5651.  After
> > putting a placeholder card config file (e.g. bytcr.conf), the error is
> > gone.  But certainly we don't want to allow user to choose this as the
> > proper card.
> >
> > So, I guess we need to put some flag to each such directory indicating
> > that it's no card config.  For example, putting
> > /usr/share/alsa/ucm/bytcr/.nocard file or such...
> >
> > Not sure whether it's wise to have a file starting with dot, though.
> > Maybe clearer to be "nocard" or any other visible one?
> 
> All the HiFi.conf files using the "include" snippets I added to avoid
> copy and pasting a lot, already need to have this at the top for
> this to work:
> 
> <searchdir:ucm>
> 
> So it might be best to move all the dirs holding include files rather
> then proper card configs from /usr/share/alsa/ucm to
> /usr/share/alsa/ucm-includes and then change the searchdir part of
> the configs using these to:
> 
> <searchdir:ucm-includes>

This sounds like a good solution, indeed.
Care to submit a fix patch?  I'll apply it unless anyone objects.


Thanks!

Takashi