Newer versions of alsa-lib now require a top-level ALSA UCM
configuration (/usr/share/alsa/ucm2/ucm.conf):
ALSA lib parser.c:2159:(load_toplevel_config) Unable to find the top-level configuration file '/usr/share/alsa/ucm2/ucm.conf'.
ALSA lib main.c:983:(snd_use_case_mgr_open) error: failed to import hw:0 use case configuration -2
alsaucm: error failed to open sound card hw:0: No such file or directory
The upstream ALSA UCM configurations are provided by Alpine's
"alsa-ucm-conf" package, so make sure to install it additionally.
bq-paella has an external speaker amplifier connected to the right
channel of the headphones output. Add an extra UCM configuration
to handle this properly.
a5lte and a5ulte are almost identical hardware-wise, the separate
package is mainly necessary because they use different firmware
signatures.
Alexey Min agreed to do some testing occasionally :)
