Comment 45 for bug 1040873

echo 1 > /sys/class/sound/hwC0D0/reconfig

the side effect of dynamic reconfigure is the driver remove the controls (1 to 24) except those user space softvol controls (25 to 26), create the new controls from 27

Alsactl output
!!--------------

--startcollapse--
state.PCH {
 control.25 {
  iface MIXER
  name 'PCM Playback Volume'
  value.0 255
  value.1 255
  comment {
   access 'read write user'
   type INTEGER
   count 2
   range '0 - 255'
   tlv '0000000100000008ffffec1400000014'
   dbmin -5100
   dbmax 0
   dbvalue.0 0
   dbvalue.1 0
  }
 }
 control.26 {
  iface MIXER
  name 'Digital Capture Volume'
  value.0 60
  value.1 60
  comment {
   access 'read write user'
   type INTEGER
   count 2
   range '0 - 120'
   tlv '0000000100000008fffff44800000032'
   dbmin -3000
   dbmax 3000
   dbvalue.0 0
   dbvalue.1 0
  }
 }
 control.27 {
  iface MIXER
  name 'Front Playback Volume'
  value.0 64
  value.1 64
  comment {
   access 'read write'
   type INTEGER
   count 2
   range '0 - 64'
   dbmin -6400
   dbmax 0
   dbvalue.0 0
   dbvalue.1 0
  }