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  1. AGL Development
  2. SPEC-1977

4a-alsacore (used by HAL Generic) creates dbscale mixer controls, also if not specified

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      Description

      There is a  dffference between controls setup in HAL and Softmixer.
      HAL Controls are adding dbscale, which should not be the case if not specified.

      Example specified:

       "halmap": [
      {
      "uid": "agl-master-playback-volume",
      "info": "Sets master playback volume",
      "alsa": {
      "name": "Master Playback Volume",
      "value": 95,
      "create":

      { "type": "INTEGER", "count": 1, "minval": 0, "maxval": 100, "step": 1 }

      },
      "action": "plugin://hal-unicens#MasterVol"
      },

       

      *****

      Checking values for UNICENS HAL
      ~> amixer -Dhw:ep016ch cget numid=1
      numid=1,iface=MIXER,name='Master Playback Volume'
      ; type=INTEGER,access=rw--RW,values=1,min=0,max=100,step=1
      : values=4
      | dBlinear-min=-100.00dB,max=0.00dB

      The Value can be set by cset but alsamixer is not matching correctly.
      ~> amixer -Dhw:ep016ch cset numid=1 40
      numid=1,iface=MIXER,name='Master Playback Volume'
      ; type=INTEGER,access=rw--RW,values=1,min=0,max=100,step=1
      : values=40
       dBlinear-min=-100.00dB,max=0.00dB

      ****

      In Comparison, the softmixer controls are added correctly. No dbscale.
      ~> amixer -Dhw:2 cget numid=1
      numid=1,iface=PCM,name='PCM Rate Shift 100000'
      ; type=INTEGER,access=rw------,values=1,min=80000,max=120000,step=1
      : values=100000

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            • Assignee:
              Jon Jonathan Aillet
              Reporter:
              tjahnke Tobias Jahnke
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              • Created:
                Updated:
                Resolved: