i2s_setting.md

I2S Setting

System > I2S module:

• Populate select: /srv/http/settings/system-i2smodules.php
  • set selected and show
    • name = /srv/http/data/system/audio-output
    • sysname = /srv/http/data/system/audio-aplayname
• Selected: /srv/http/assets/js/system.js
  • /boot/config.txt
    • disable on-board audio
    • append dtoverlay=<sysname>
  • sysname > /srv/http/data/system/audio-aplayname
  • name > /srv/http/data/system/audio-output
  • set reboot flag

MPD > Interface:

• Populate select: /srv/http/settings/mpd.php
  • get aplayname list with aplay -l
  • each card:
    • aplayname
    • if subdevices, append index
    • get from /srv/http/settings/i2s/<aplayname>
      • mixer_control for each card
      • if routecmd exists, route to subdevice
      • extlabel for USB DAC notify change
  • set selected
• Selected: (skip if USB DAC)
  • /srv/http/assets/js/mpd.js
    • name > /srv/http/data/system/audio-output
    • sysname > /srv/http/data/system/audio-aplayname

Boot:

• Script: /srv/http/settings/mpd-conf.sh