The alsactl utility cannot load the requested modules (call kmod utility) and modify the sound driver configuration through sysfs:

Link: https://github.com/alsa-project/alsa-ucm-conf/issues/100

Proposed rules:

  module alsactl 1.0;

  require {
	type sysfs_t;
	type kmod_exec_t;
	type alsa_t;
  	class file { execute write };
  }

  #============= alsa_t ==============
  allow alsa_t kmod_exec_t:file execute;
  allow alsa_t sysfs_t:file write;