Comment 16 for bug 939161

the diver create headphone jack kcontrol even when it does not have jack detect circuit

so it is always unavailable when pulseaudio server load module-switch-on-port-available

Node 0x0b [Pin Complex] wcaps 0x400581: Stereo
  Control: name="Headphone Jack", index=0, device=0
  Pincap 0x0000001f: OUT HP Detect Trigger ImpSense
  Pin Default 0x0121411f: [Jack] HP Out at Ext Rear
    Conn = 1/8, Color = Green
    DefAssociation = 0x1, Sequence = 0xf
    Misc = NO_PRESENCE
  Pin-ctls: 0xc0: OUT HP
  Unsolicited: tag=01, enabled=1
  Power states: D0 D1 D2 D3
  Power: setting=D0, actual=D0
  Connection: 1
     0x16