src/conf/cards/Loopback.conf

   1 #
   2 # Configuration for the virtual loopback driver (snd-aloop)
   3 #
   4
   5 <confdir:pcm/front.conf>
   6
   7 Loopback.pcm.front.0 {
   8         @args [ CARD ]
   9         @args.CARD {
  10                 type string
  11         }
  12         type softvol
  13         slave.pcm {
  14                 type hw
  15                 card $CARD
  16         }
  17         control {
  18                 name "PCM Playback Volume"
  19                 card $CARD
  20         }
  21 }
  22
  23 # default with dmix+softvol & dsnoop
  24 Loopback.pcm.default {
  25         @args [ CARD ]
  26         @args.CARD {
  27                 type string
  28         }
  29         type asym
  30         playback.pcm {
  31                 type plug
  32                 slave.pcm {
  33                         type softvol
  34                         slave.pcm {
  35                                 @func concat
  36                                 strings [ "dmix:" $CARD ]
  37                         }
  38                         control {
  39                                 name "PCM Playback Volume"
  40                                 card $CARD
  41                         }
  42                 }
  43         }
  44         capture.pcm {
  45                 type plug
  46                 slave.pcm {
  47                         type softvol
  48                         slave.pcm {
  49                                 @func concat
  50                                 strings [ "dsnoop:" $CARD ]
  51                         }
  52                         control {
  53                                 name "Digital Capture Volume"
  54                                 card $CARD
  55                         }
  56                         min_dB -30.0
  57                         max_dB 30.0
  58                         resolution 121
  59                 }
  60                 # to avoid possible phase inversions with digital mics
  61                 route_policy copy
  62         }
  63         hint.device 0
  64 }
  65
  66 <confdir:pcm/surround21.conf>
  67 <confdir:pcm/surround40.conf>
  68 <confdir:pcm/surround41.conf>
  69 <confdir:pcm/surround50.conf>
  70 <confdir:pcm/surround51.conf>
  71 <confdir:pcm/surround71.conf>
  72
  73 Loopback.pcm.surround40.0 cards.Loopback.pcm.front.0
  74 Loopback.pcm.surround51.0 cards.Loopback.pcm.front.0
  75 Loopback.pcm.surround71.0 cards.Loopback.pcm.front.0