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Commit 8e648204 authored by David Henningsson's avatar David Henningsson Committed by Takashi Iwai
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ALSA: Update control names documentation 



This document was not really up-to-date. Add recent additions to this
standard - based on what the HDA driver currently does, which is some
kind of a de facto standard.

Signed-off-by: default avatarDavid Henningsson <david.henningsson@canonical.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent b566762a

Documentation/sound/alsa/ControlNames.txt

+27 −5
Original line number Diff line number Diff line 
This document describes standard names of mixer controls.



Syntax: SOURCE [DIRECTION] FUNCTION

Syntax: [LOCATION] SOURCE [CHANNEL] [DIRECTION] FUNCTION



DIRECTION:

  <nothing>	(both directions)
@@ -14,12 +14,29 @@ FUNCTION: 
  Volume

  Route		(route control, hardware specific)



CHANNEL:

  <nothing>     (channel independent, or applies to all channels)

  Front

  Surround      (rear left/right in 4.0/5.1 surround)

  CLFE

  Center

  LFE

  Side          (side left/right for 7.1 surround)



LOCATION:       (physical location of source)

  Front

  Rear

  Dock          (docking station)

  Internal



SOURCE:

  Master

  Master Mono

  Hardware Master

  Speaker	(internal speaker)

  Bass Speaker	(internal LFE speaker)

  Headphone

  Line Out

  Beep		(beep generator)

  Phone

  Phone Input
@@ -27,14 +44,14 @@ SOURCE: 
  Synth

  FM

  Mic

  Line

  Headset Mic	(mic part of combined headset jack - 4-pin headphone + mic)

  Headphone Mic	(mic part of either/or - 3-pin headphone or mic)

  Line		(input only, use "Line Out" for output)

  CD

  Video

  Zoom Video

  Aux

  PCM

  PCM Front

  PCM Rear

  PCM Pan

  Loopback

  Analog Loopback	(D/A -> A/D loopback)
@@ -47,8 +64,13 @@ SOURCE: 
  Music

  I2S

  IEC958

  HDMI

  SPDIF		(output only)

  SPDIF In

  Digital In

  HDMI/DP	(either HDMI or DisplayPort)



Exceptions:

Exceptions (deprecated):

  [Digital] Capture Source

  [Digital] Capture Switch	(aka input gain switch)

  [Digital] Capture Volume	(aka input gain volume)