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RushFuture

Gathering ALSA Information

RushFuture
Jan 15th, 2015
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  1. $ cat /proc/asound/pcm
  2. 00-00: ALC269VC Analog : ALC269VC Analog : playback 1 : capture 1
  3. 00-03: HDMI 0 : HDMI 0 : playback 1
  4. 01-00: Loopback PCM : Loopback PCM : playback 8 : capture 8
  5. 01-01: Loopback PCM : Loopback PCM : playback 8 : capture 8
  6. 02-00: USB Audio : USB Audio : playback 1
  7. 03-00: USB Audio : USB Audio : capture 1
  8. 04-00: USB Audio : USB Audio : capture 1
  9.  
  10. $ cat /proc/asound/devices
  11.   1:        : sequencer
  12.   2: [ 1- 1]: digital audio playback
  13.   3: [ 1- 1]: digital audio capture
  14.   4: [ 1- 0]: digital audio playback
  15.   5: [ 1- 0]: digital audio capture
  16.   6: [ 1]   : control
  17.   7: [29]   : control
  18.   8: [ 0- 3]: digital audio playback
  19.   9: [ 0- 0]: digital audio playback
  20.  10: [ 0- 0]: digital audio capture
  21.  11: [ 0- 3]: hardware dependent
  22.  12: [ 0- 0]: hardware dependent
  23.  13: [ 0]   : control
  24.  14: [ 2- 0]: digital audio playback
  25.  15: [ 2]   : control
  26.  16: [ 3- 0]: digital audio capture                                                                                                                                                            
  27.  17: [ 3]   : control                                                                                                                                                                          
  28.  18: [ 4- 0]: digital audio capture                                                                                                                                                            
  29.  19: [ 4]   : control                                                                                                                                                                          
  30.  33:        : timer
  31.  
  32. $ aplay -l
  33. **** List of PLAYBACK Hardware Devices ****
  34. card 0: PCH [HDA Intel PCH], device 0: ALC269VC Analog [ALC269VC Analog]
  35.   Subdevices: 1/1
  36.   Subdevice #0: subdevice #0
  37. card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
  38.   Subdevices: 1/1
  39.   Subdevice #0: subdevice #0
  40. card 1: Loopback [Loopback], device 0: Loopback PCM [Loopback PCM]
  41.   Subdevices: 8/8
  42.   Subdevice #0: subdevice #0
  43.   Subdevice #1: subdevice #1
  44.   Subdevice #2: subdevice #2
  45.   Subdevice #3: subdevice #3
  46.   Subdevice #4: subdevice #4
  47.   Subdevice #5: subdevice #5
  48.   Subdevice #6: subdevice #6
  49.   Subdevice #7: subdevice #7
  50. card 1: Loopback [Loopback], device 1: Loopback PCM [Loopback PCM]
  51.   Subdevices: 8/8
  52.   Subdevice #0: subdevice #0
  53.   Subdevice #1: subdevice #1
  54.   Subdevice #2: subdevice #2
  55.   Subdevice #3: subdevice #3
  56.   Subdevice #4: subdevice #4
  57.   Subdevice #5: subdevice #5
  58.   Subdevice #6: subdevice #6
  59.   Subdevice #7: subdevice #7
  60. card 2: Audio [B-LINK USB Audio], device 0: USB Audio [USB Audio]
  61.   Subdevices: 0/1
  62.   Subdevice #0: subdevice #0
  63.  
  64. $ arecord -l
  65. **** List of CAPTURE Hardware Devices ****
  66. card 0: PCH [HDA Intel PCH], device 0: ALC269VC Analog [ALC269VC Analog]
  67.   Subdevices: 0/1
  68.   Subdevice #0: subdevice #0
  69. card 1: Loopback [Loopback], device 0: Loopback PCM [Loopback PCM]
  70.   Subdevices: 8/8
  71.   Subdevice #0: subdevice #0
  72.   Subdevice #1: subdevice #1
  73.   Subdevice #2: subdevice #2
  74.   Subdevice #3: subdevice #3
  75.   Subdevice #4: subdevice #4
  76.   Subdevice #5: subdevice #5
  77.   Subdevice #6: subdevice #6
  78.   Subdevice #7: subdevice #7
  79. card 1: Loopback [Loopback], device 1: Loopback PCM [Loopback PCM]
  80.   Subdevices: 7/8
  81.   Subdevice #0: subdevice #0
  82.   Subdevice #1: subdevice #1
  83.   Subdevice #2: subdevice #2
  84.   Subdevice #3: subdevice #3
  85.   Subdevice #4: subdevice #4
  86.   Subdevice #5: subdevice #5
  87.   Subdevice #6: subdevice #6
  88.   Subdevice #7: subdevice #7
  89. card 3: Adapter [Rocksmith USB Guitar Adapter], device 0: USB Audio [USB Audio]
  90.   Subdevices: 1/1
  91.   Subdevice #0: subdevice #0
  92. card 4: Adapter_1 [Rocksmith USB Guitar Adapter], device 0: USB Audio [USB Audio]
  93.   Subdevices: 1/1
  94.   Subdevice #0: subdevice #0
  95.  
  96. $ cat /proc/asound/cards
  97.  0 [PCH            ]: HDA-Intel - HDA Intel PCH
  98.                       HDA Intel PCH at 0xf0610000 irq 45
  99.  1 [Loopback       ]: Loopback - Loopback
  100.                       Loopback 1
  101.  2 [Audio          ]: USB-Audio - B-LINK USB Audio
  102.                       HOLTEK B-LINK USB Audio at usb-0000:00:1d.0-1.3, full speed
  103.  3 [Adapter        ]: USB-Audio - Rocksmith USB Guitar Adapter
  104.                       Hercules Rocksmith USB Guitar Adapter at usb-0000:00:1a.0-1.2, full speed
  105.  4 [Adapter_1      ]: USB-Audio - Rocksmith USB Guitar Adapter
  106.                       Hercules Rocksmith USB Guitar Adapter at usb-0000:00:14.0-2, full speed
  107. 29 [ThinkPadEC     ]: ThinkPad EC - ThinkPad Console Audio Control
  108.                       ThinkPad Console Audio Control at EC reg 0x30, fw unknown
  109.  
  110. $ cat /proc/asound/hwdep
  111. 00-03: HDA Codec 3
  112. 00-00: HDA Codec 0
  113.  
  114. $ cat /proc/asound/modules
  115.  0 snd_hda_intel
  116.  1 snd_aloop
  117.  2 snd_usb_audio
  118.  3 snd_usb_audio
  119.  4 snd_usb_audio
  120. 29 thinkpad_acpi
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