On Thu, 23 Jul 2020, Takashi Sakamoto wrote:
 
  $ cargo run --bin snd-fireworks-ctl-service 2
 This worked great the first time, but after the next boot alsamixer showed a
 subset of the same controls (rather than no controls found) and I could not
 restart snd-fireworks-ctl-service. Is it expected that once the above 
 
 I think that some users install system service for alsactl(1)[1]. In this
 case, the system services add control element sets from cache file after
 reboot. For the case the service program has a care to run with the element 
 
That sounds like what I am seeing. Perhaps alsa-restore.service. I will
try with that disabled. Yes that is the difference, it works as expected.
I would guess this module would be added to alsa before
alsa-restore.service after release. Restore would then be able to fix my
clock settings.
I have added comments to issues that are closed to indicate what I have
tested. The closed issues do seem to be fixed.
--
Len Ovens
www.ovenwerks.net