the driver did not create the controls at index=0

the control  create controls at index=0 only if the driver load MCP73
codec first before alc888

alc888 seem alway load before MCP73 , so  those iec958 controls with-
index=0 are created at device 1 (spdif) and those IEC958 controls with
index=1 at device 1 (HDMI)

http://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda?id=ea9b43addc4d90ca5b029f47f85ca152320a1e8d

HDMI devices will be put to dev=0,index=0 as before.

you have to send email to the author of the patch about your case which
HDMI device does not have those IEC958 controls at index=0

Node 0x04 [Audio Output] wcaps 0x211: Stereo Digital
  Control: name="IEC958 Playback Con Mask", index=1, device=0
  Control: name="IEC958 Playback Pro Mask", index=1, device=0
  Control: name="IEC958 Playback Default", index=1, device=0
  Control: name="IEC958 Playback Switch", index=1, device=0
  Device: name="HDMI 0", type="HDMI", device=3
  Converter: stream=0, channel=0
  Digital: Enabled
  Digital category: 0x0
  IEC Coding Type: 0x0
  PCM:
    rates [0x40]: 48000
    bits [0x2]: 16
    formats [0x1]: PCM
Node 0x05 [Pin Complex] wcaps 0x400381: Stereo Digital
  Control: name="HDMI/DP,pcm=3 Phantom Jack", index=0, device=0
  Pincap 0x00000014: OUT Detect
  Pin Default 0x185601f0: [Jack] Digital Out at Int HDMI
    Conn = Digital, Color = Unknown
    DefAssociation = 0xf, Sequence = 0x0
    Misc = NO_PRESENCE
  Pin-ctls: 0x40: OUT
  Unsolicited: tag=00, enabled=0
  Connection: 1
     0x04

http://git.alsa-project.org/?p=alsa-
lib.git;a=blob_plain;f=src/conf/pcm/hdmi.conf;hb=HEAD

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/1249705

Title:
  HDMI output not available in 13.10

Status in “alsa-driver” package in Ubuntu:
  Incomplete
Status in “pulseaudio” package in Ubuntu:
  Confirmed

Bug description:
  Hello,

  My issue here is with the HDMI output, it is non existent.  I have had no 
issues with earlier versions of Ubuntu from 10.x, 12.04 LTS and 13.04.  Even 
the original distro which was originally on this HTPC, Susse.
  I have researched all avenues for a remedy to my issue including #ALSA, 
#Pulseaudio and #Ubuntu IRCs.
  Some have mention it is possibly a kernel issue. I do have audio via S/PDIF 
which is stereo only.

  I did not upgrade the existing version; which most would, I have done a clean 
install of Ubuntu 13.10.  Everything is working fine except for my audio 
issues.  HDMI output is not showing in either ALSA or Pavucontrol. 
  On the previous versions of Ubuntu I had many options of Digital 5.1 surround 
ouputs including HDMI.   All that is available now for surround sound is analog 
options.

  In the Sound configuration panel I only have Digital Output (S/PDIF)Built-in 
Audio and Analog Output Built-in Audio which are only Stereo, HDMI is now 
missing in 13.10
  I have tried so many apparent fixes in various forums which included  editing 
confg files, uninstalling and reinstalling Alsa-base and Pulseaudio.  I am 
surprised that I have any sound out of the S/PDIF Coax or Optical now.
  Thank you for taking the time to look this over.  I am not 100% sure  this is 
a bug , but by all the research, suggestions on the IRCs and not having this 
issue on previous versions,  I am leaning towards it being a bug.  If you need 
any further information please let me know and I will respond asap.

  
  Here is a link to my system info that was uploaded via alsa-info.sh:
  HTTP://pastebin.com/Mwhwvwxw

  This is the original alsa upload link:
  HTTP://www.alsa-project.org/db/?f=ecbcde4ed5874b18b8c18ea54d85ce7033287134

  Here is my system information:
  Description:  Ubuntu 13.10
  Release:      13.10
  Kernel-release version
  3.11.0-13-generic
  uname -a string
  Linux HTPC 3.11.0-13-generic #20-Ubuntu SMP Wed Oct 23 07:38:26 UTC 2013 
x86_64 x86_64 x86_64 GNU/Linux

  HTPC System Info:
  Processor: AMD Athlon(tm) 64 X2 Dual Core Processor 4000+ × 2
  Memory: 4GiB
  Graphics: GeForce 7050 PV / nForce 630a/integrated/SSE2
  OS Type: Ubuntu 13.10 64-bit
  Disk: 320 GB
  DVB: AVerTVHD MCE A180
  Remote: ATI USB RF wireless remote ( Remote Wonder)
  Keyboard/Mouse: Wireless
  System formerly a Captiveworks 3000/4000 ATSC and DVB-S Satellite HTPC,  
Distro used, Susse

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