cat /etc/modprobe.d/alsa.conf
options snd_aloop index=8,9 id=loop0,loop1 enable=1,1 pcm_substreams=8,1

cat /etc/asound.conf
#
# Place your global alsa-lib configuration here...
#

#### Linrad ####

pcm.loop0_0_0 {
  type plug
    slave {
      pcm "hw:loop0,0,0"
      format FLOAT_LE
      rate 96000
    }
}

pcm.linrad_alsa {
  type asym
  playback.pcm "loop0_0_0"
  capture.pcm "loop0_0_0"
  hint {
    show on
    description "Linrad: ALSA"
  }
}

pcm.loop0_1_0 {
  type plug
    slave {
      pcm "hw:loop0,1,0"
      format FLOAT_LE
      rate 96000
    }
}

pcm.linrad_jack {
  type asym
  playback.pcm "loop0_1_0"
  capture.pcm "loop0_1_0"
  hint {
    show on
    description "Linrad: JACK"
  }
}

#### WSJTX ####

pcm.loop0_0_1 {
  type plug
    slave {
      pcm "hw:loop0,0,1"
      format FLOAT_LE
      rate 96000
    }
}

pcm.wsjtx_alsa {
  type asym
  playback.pcm "loop0_0_1"
  capture.pcm "loop0_0_1"
  hint {
    show on
    description "WSJTX: ALSA"
  }
}

pcm.loop0_1_1 {
  type plug
    slave {
      pcm "hw:loop0,1,1"
      format FLOAT_LE
      rate 96000
    }
}

pcm.wsjtx_jack {
  type asym
  playback.pcm "loop0_1_1"
  capture.pcm "loop0_1_1"
  hint {
    show on
    description "WSJTX: JACK"
  }
}

#### FLDIGI ####

pcm.loop0_0_2 {
  type plug
    slave {
      pcm "hw:loop0,0,2"
      format FLOAT_LE
      rate 96000
    }
}

pcm.fldigi_alsa {
  type asym
  playback.pcm "loop0_0_2"
  capture.pcm "loop0_0_2"
  hint {
    show on
    description "FLDIGI: ALSA"
  }
}

pcm.loop0_1_2 {
  type plug
    slave {
      pcm "hw:loop0,1,2"
      format FLOAT_LE
      rate 96000
    }
}

pcm.fldigi_jack {
  type asym
  playback.pcm "loop0_1_2"
  capture.pcm "loop0_1_2"
  hint {
    show on
    description "FLDIGI: JACK"
  }
}