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- $ cat /proc/asound/pcm
- 00-00: ALC269VC Analog : ALC269VC Analog : playback 1 : capture 1
- 00-03: HDMI 0 : HDMI 0 : playback 1
- 01-00: Loopback PCM : Loopback PCM : playback 8 : capture 8
- 01-01: Loopback PCM : Loopback PCM : playback 8 : capture 8
- 02-00: USB Audio : USB Audio : playback 1
- 03-00: USB Audio : USB Audio : capture 1
- 04-00: USB Audio : USB Audio : capture 1
- $ cat /proc/asound/devices
- 1: : sequencer
- 2: [ 1- 1]: digital audio playback
- 3: [ 1- 1]: digital audio capture
- 4: [ 1- 0]: digital audio playback
- 5: [ 1- 0]: digital audio capture
- 6: [ 1] : control
- 7: [29] : control
- 8: [ 0- 3]: digital audio playback
- 9: [ 0- 0]: digital audio playback
- 10: [ 0- 0]: digital audio capture
- 11: [ 0- 3]: hardware dependent
- 12: [ 0- 0]: hardware dependent
- 13: [ 0] : control
- 14: [ 2- 0]: digital audio playback
- 15: [ 2] : control
- 16: [ 3- 0]: digital audio capture
- 17: [ 3] : control
- 18: [ 4- 0]: digital audio capture
- 19: [ 4] : control
- 33: : timer
- $ aplay -l
- **** List of PLAYBACK Hardware Devices ****
- card 0: PCH [HDA Intel PCH], device 0: ALC269VC Analog [ALC269VC Analog]
- Subdevices: 1/1
- Subdevice #0: subdevice #0
- card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
- Subdevices: 1/1
- Subdevice #0: subdevice #0
- card 1: Loopback [Loopback], device 0: Loopback PCM [Loopback PCM]
- Subdevices: 8/8
- Subdevice #0: subdevice #0
- Subdevice #1: subdevice #1
- Subdevice #2: subdevice #2
- Subdevice #3: subdevice #3
- Subdevice #4: subdevice #4
- Subdevice #5: subdevice #5
- Subdevice #6: subdevice #6
- Subdevice #7: subdevice #7
- card 1: Loopback [Loopback], device 1: Loopback PCM [Loopback PCM]
- Subdevices: 8/8
- Subdevice #0: subdevice #0
- Subdevice #1: subdevice #1
- Subdevice #2: subdevice #2
- Subdevice #3: subdevice #3
- Subdevice #4: subdevice #4
- Subdevice #5: subdevice #5
- Subdevice #6: subdevice #6
- Subdevice #7: subdevice #7
- card 2: Audio [B-LINK USB Audio], device 0: USB Audio [USB Audio]
- Subdevices: 0/1
- Subdevice #0: subdevice #0
- $ arecord -l
- **** List of CAPTURE Hardware Devices ****
- card 0: PCH [HDA Intel PCH], device 0: ALC269VC Analog [ALC269VC Analog]
- Subdevices: 0/1
- Subdevice #0: subdevice #0
- card 1: Loopback [Loopback], device 0: Loopback PCM [Loopback PCM]
- Subdevices: 8/8
- Subdevice #0: subdevice #0
- Subdevice #1: subdevice #1
- Subdevice #2: subdevice #2
- Subdevice #3: subdevice #3
- Subdevice #4: subdevice #4
- Subdevice #5: subdevice #5
- Subdevice #6: subdevice #6
- Subdevice #7: subdevice #7
- card 1: Loopback [Loopback], device 1: Loopback PCM [Loopback PCM]
- Subdevices: 7/8
- Subdevice #0: subdevice #0
- Subdevice #1: subdevice #1
- Subdevice #2: subdevice #2
- Subdevice #3: subdevice #3
- Subdevice #4: subdevice #4
- Subdevice #5: subdevice #5
- Subdevice #6: subdevice #6
- Subdevice #7: subdevice #7
- card 3: Adapter [Rocksmith USB Guitar Adapter], device 0: USB Audio [USB Audio]
- Subdevices: 1/1
- Subdevice #0: subdevice #0
- card 4: Adapter_1 [Rocksmith USB Guitar Adapter], device 0: USB Audio [USB Audio]
- Subdevices: 1/1
- Subdevice #0: subdevice #0
- $ cat /proc/asound/cards
- 0 [PCH ]: HDA-Intel - HDA Intel PCH
- HDA Intel PCH at 0xf0610000 irq 45
- 1 [Loopback ]: Loopback - Loopback
- Loopback 1
- 2 [Audio ]: USB-Audio - B-LINK USB Audio
- HOLTEK B-LINK USB Audio at usb-0000:00:1d.0-1.3, full speed
- 3 [Adapter ]: USB-Audio - Rocksmith USB Guitar Adapter
- Hercules Rocksmith USB Guitar Adapter at usb-0000:00:1a.0-1.2, full speed
- 4 [Adapter_1 ]: USB-Audio - Rocksmith USB Guitar Adapter
- Hercules Rocksmith USB Guitar Adapter at usb-0000:00:14.0-2, full speed
- 29 [ThinkPadEC ]: ThinkPad EC - ThinkPad Console Audio Control
- ThinkPad Console Audio Control at EC reg 0x30, fw unknown
- $ cat /proc/asound/hwdep
- 00-03: HDA Codec 3
- 00-00: HDA Codec 0
- $ cat /proc/asound/modules
- 0 snd_hda_intel
- 1 snd_aloop
- 2 snd_usb_audio
- 3 snd_usb_audio
- 4 snd_usb_audio
- 29 thinkpad_acpi
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