Originariamente inviato da bigtube
daphile ~ # cd /proc/asound
daphile asound # ls
card0 card1 card2 cards devices Dummy hwdep Loopback pcm timers version X20
daphile asound # cd /proc/asound/x20
-bash: cd: /proc/asound/x20: No such file or directory
daphile asound # cd /proc/asound/X20
daphile X20 # ls
id stream0 usbbus usbid usbmixer
daphile X20 # nano stream0
contenuto del file:
XMOS XMOS USB Audio 2.0 at usb-0000:00:13.5-2, high speed : USB Audio

Playback:
Status: Running
Interface = 1
Altset = 1
Packet Size = 448
Momentary freq = 352847 Hz (0x2c.1b18)
Feedback Format = 16.16
Interface 1
Altset 1
Format: S32_LE
Channels: 2
Endpoint: 1 OUT (ASYNC)
Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000
Data packet interval: 125 us
oppure:
daphile X20 # cd /proc/asound/card2
daphile card2 # ls
id stream0 usbbus usbid usbmixer
daphile card2 # cat /proc/asound/card2/stream0
XMOS XMOS USB Audio 2.0 at usb-0000:00:13.5-2, high speed : USB Audio

Playback:
Status: Running
Interface = 1
Altset = 1
Packet Size = 448
Momentary freq = 352847 Hz (0x2c.1b18)
Feedback Format = 16.16
Interface 1
Altset 1
Format: S32_LE
Channels: 2
Endpoint: 1 OUT (ASYNC)
Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000
Data packet interval: 125 us
cd /proc/asound
daphile asound # ls
card0 card2 devices I82801AAICH pcm version
card1 cards Dummy Loopback timers


I82801AAICH è un simlink per card2.