@@@ root@runeaudio2(rw):~# lsusb
Bus 001 Device 004: ID 0d8c:0014 C-Media Electronics, Inc.
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp. SMC9514 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
@@@ root@runeaudio2(rw):~# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Device [USB Audio Device], device 0: USB Audio [USB Audio]
Subdevices: 0/1
Subdevice #0: subdevice #0
@@@ root@runeaudio2(rw):~# aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
default:CARD=Device
USB Audio Device, USB Audio
Default Audio Device
sysdefault:CARD=Device
USB Audio Device, USB Audio
Default Audio Device
front:CARD=Device,DEV=0
USB Audio Device, USB Audio
Front speakers
surround21:CARD=Device,DEV=0
USB Audio Device, USB Audio
2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=Device,DEV=0
USB Audio Device, USB Audio
4.0 Surround output to Front and Rear speakers
surround41:CARD=Device,DEV=0
USB Audio Device, USB Audio
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Device,DEV=0
USB Audio Device, USB Audio
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Device,DEV=0
USB Audio Device, USB Audio
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Device,DEV=0
USB Audio Device, USB Audio
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=Device,DEV=0
USB Audio Device, USB Audio
IEC958 (S/PDIF) Digital Audio Output
@@@ root@runeaudio2(rw):~# cat /proc/asound/cards
0 [Device ]: USB-Audio - USB Audio Device
C-Media Electronics Inc. USB Audio Device at usb-3f980000.usb-1.5, full speed
@@@ root@runeaudio2(rw):~# amixer
Simple mixer control 'Speaker',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 37
Mono:
Front Left: Playback 37 [100%] [0.00dB] [on]
Front Right: Playback 37 [100%] [0.00dB] [on]
Simple mixer control 'Mic',0
Capabilities: pvolume pvolume-joined cvolume cvolume-joined pswitch pswitch-joined cswitch cswitch-joined
Playback channels: Mono
Capture channels: Mono
Limits: Playback 0 - 31 Capture 0 - 35
Mono: Playback 0 [0%] [-23.00dB] [off] Capture 0 [0%] [-12.00dB] [on]
Simple mixer control 'Auto Gain Control',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]