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

[Hans de Goede]

Hi,

On 26-11-18 11:07, Takashi Iwai wrote:
> The error messages (at least some of them) are known issues and I
> already posted the problem on alsa-devel ML.  The fix should be easy
> but I'd like to get consensus beforehand.

Ah I missed that mail as I'm not subscribed to alsa-devel. Since
my changes are the cause of this alsaucm command problem, let me
reply here:

 > 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>

Regards,

Hans