[alsa-devel] No controls in alsamixer

Riccardo Casagrande riccardo.casagrande at multiconn.it
Fri Jul 20 17:30:00 CEST 2018


Hello all,


following this thread http://mailman.alsa-project.org/pipermail/alsa-devel/2016-May/108068.html I added a new sound card without codec. On my board the i.MX6Q chip puts audio data directly to some ST FDA2100 power amplifiers.
The sound card is listed correctly in alsa but in alsamixer there are no audio controls, I need a volume control. I tried to edit asound.conf file with this part


pcm.softvol {
  type  softvol
  slave {
    pcm "hw:1,0"
  }
  control {
    name  "SoftVol"
    card  1
  }
}

ctl.softvol {
    type hw
        card 1
}


This is part of logs during the boot


--> ITEL imx_itel_probe
--> ITEL Configuro audmux
--> ITEL imx-audmux-confic ext-port port=0x00000001ptcr=0x9ce73800 pdcr=0x00006000
--> ITEL imx-audmux-config int-port port=0x00000001ptcr=0x00000800 pdcr=0x00002000
--> ITEL imx-probe registro card
imx-itel sound-audio-itel: snd-soc-dummy-dai <-> 202c000.ssi mapping ok
--> ITEL imx-probe of ssi
--> ITEL imx-probe of codec
[...]
ALSA device list:
  #0: cs42888-audio
  #1: imx-audio-itel
  #2: imx-spdif
  #3: imx-hdmi-soc
[...]
ALSA: Restoring mixer settings...
No state is present for card imxaudioitel
Found hardware: "imx-audio-itel" "" "" "" ""
Hardware is initialized using a generic method
No state is present for card imxaudioitel
No state is present for card imxspdif
Found hardware: "imx-spdif" "" "" "" ""
Hardware is initialized using a generic method
No state is present for card imxspdif


Sorry but I'm new in alsa and linux in general.
Riccardo










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