!!################################
!!ALSA Information Script v 0.4.64
!!################################

!!Script ran on: Wed Feb  7 04:23:20 UTC 2018


!!Linux Distribution
!!------------------

Debian GNU/Linux 9 \n \l ARCH=arm INITRD_ARCH=arm PRETTY_NAME="Debian GNU/Linux 9 (stretch)" NAME="Debian GNU/Linux" ID=debian HOME_URL="https://www.debian.org/" SUPPORT_URL="https://www.debian.org/support" BUG_REPORT_URL="https://bugs.debian.org/"


!!DMI Information
!!---------------

Manufacturer:      
Product Name:      
Product Version:   
Firmware Version:  


!!Kernel Information
!!------------------

Kernel release:    4.14.15-sunxi
Operating System:  GNU/Linux
Architecture:      armv7l
Processor:         unknown
SMP Enabled:       Yes


!!ALSA Version
!!------------

Driver version:     k4.14.15-sunxi
Library version:    1.1.3
Utilities version:  1.1.3


!!Loaded ALSA modules
!!-------------------

snd_usb_audio


!!Sound Servers on this system
!!----------------------------

No sound servers found.


!!Soundcards recognised by ALSA
!!-----------------------------

 1 [Device         ]: USB-Audio - USB PnP Sound Device
                      C-Media Electronics Inc. USB PnP Sound Device at usb-1c1b400.usb-1, full speed


!!Modprobe options (Sound related)
!!--------------------------------

snd_pcsp: index=-2
snd_usb_audio: index=-2
snd_atiixp_modem: index=-2
snd_intel8x0m: index=-2
snd_via82xx_modem: index=-2


!!Loaded sound module options
!!---------------------------

!!Module: snd_usb_audio
	autoclock : Y
	device_setup : 0,0,0,0,0,0,0,0
	enable : Y,Y,Y,Y,Y,Y,Y,Y
	id : (null),(null),(null),(null),(null),(null),(null),(null)
	ignore_ctl_error : N
	index : -2,-1,-1,-1,-1,-1,-1,-1
	pid : -1,-1,-1,-1,-1,-1,-1,-1
	quirk_alias : (null),(null),(null),(null),(null),(null),(null),(null)
	vid : -1,-1,-1,-1,-1,-1,-1,-1


!!USB Mixer information
!!---------------------
--startcollapse--

USB Mixer: usb_id=0x80860808, ctrlif=0, ctlerr=0
Card: C-Media Electronics Inc. USB PnP Sound Device at usb-1c1b400.usb-1, full speed
  Unit: 10
    Control: name="Auto Gain Control", index=0
    Info: id=10, control=7, cmask=0x0, channels=1, type="BOOLEAN"
    Volume: min=0, max=1, dBmin=0, dBmax=0
  Unit: 10
    Control: name="Mic Capture Volume", index=0
    Info: id=10, control=2, cmask=0x0, channels=1, type="S16"
    Volume: min=0, max=6096, dBmin=0, dBmax=2381
  Unit: 10
    Control: name="Mic Capture Switch", index=0
    Info: id=10, control=1, cmask=0x0, channels=1, type="INV_BOOLEAN"
    Volume: min=0, max=1, dBmin=0, dBmax=0
--endcollapse--


!!ALSA Device nodes
!!-----------------

crw-rw---- 1 root audio 116, 32 Feb  7 13:03 /dev/snd/controlC1
crw-rw---- 1 root audio 116, 56 Feb  7 13:03 /dev/snd/pcmC1D0c
crw-rw---- 1 root audio 116, 33 Feb  7 13:03 /dev/snd/timer

/dev/snd/by-id:
total 0
drwxr-xr-x 2 root root  60 Feb  7 13:03 .
drwxr-xr-x 4 root root 140 Feb  7 13:03 ..
lrwxrwxrwx 1 root root  12 Feb  7 13:03 usb-C-Media_Electronics_Inc._USB_PnP_Sound_Device-00 -> ../controlC1

/dev/snd/by-path:
total 0
drwxr-xr-x 2 root root  60 Feb  7 13:03 .
drwxr-xr-x 4 root root 140 Feb  7 13:03 ..
lrwxrwxrwx 1 root root  12 Feb  7 13:03 platform-1c1b400.usb-usb-0:1:1.0 -> ../controlC1


!!ALSA configuration files
!!------------------------

!!System wide config file (/etc/asound.conf)

pcm.!default {
    type hw
    card 0
    device 0
}
ctl.!default {
    type hw
    card 0
}


!!Aplay/Arecord output
!!--------------------

APLAY

**** List of PLAYBACK Hardware Devices ****

ARECORD

**** List of CAPTURE Hardware Devices ****
card 1: Device [USB PnP Sound Device], device 0: USB Audio [USB Audio]
  Subdevices: 0/1
  Subdevice #0: subdevice #0

!!Amixer output
!!-------------

!!-------Mixer controls for card 1 [Device]

Card hw:1 'Device'/'C-Media Electronics Inc. USB PnP Sound Device at usb-1c1b400.usb-1, full speed'
  Mixer name	: 'USB Mixer'
  Components	: 'USB8086:0808'
  Controls      : 4
  Simple ctrls  : 2
Simple mixer control 'Mic',0
  Capabilities: cvolume cvolume-joined cswitch cswitch-joined
  Capture channels: Mono
  Limits: Capture 0 - 16
  Mono: Capture 0 [0%] [0.00dB] [on]
Simple mixer control 'Auto Gain Control',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]


!!Alsactl output
!!--------------

--startcollapse--
state.Device {
	control.1 {
		iface PCM
		name 'Capture Channel Map'
		value 2
		comment {
			access read
			type INTEGER
			count 1
			range '0 - 36'
		}
	}
	control.2 {
		iface MIXER
		name 'Mic Capture Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.3 {
		iface MIXER
		name 'Mic Capture Volume'
		value 0
		comment {
			access 'read write'
			type INTEGER
			count 1
			range '0 - 16'
			dbmin 0
			dbmax 2381
			dbvalue.0 0
		}
	}
	control.4 {
		iface MIXER
		name 'Auto Gain Control'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
}
--endcollapse--


!!All Loaded Modules
!!------------------

Module
sun8i_codec_analog
snd_usb_audio
snd_hwdep
snd_soc_core
snd_usbmidi_lib
snd_rawmidi
snd_pcm_dmaengine
snd_pcm
pwrseq_simple
snd_timer
snd
evdev
soundcore
sun4i_gpadc_iio
uio_pdrv_genirq
uio
usb_f_acm
u_serial
g_serial
libcomposite
ip_tables
x_tables


!!ALSA/HDA dmesg
!!--------------

[   11.261223] sunxi-mmc 1c10000.mmc: allocated mmc-pwrseq
[   11.384838] usbcore: registered new interface driver snd-usb-audio
[   11.540604] sunxi-mmc 1c10000.mmc: base:0xe0e72000 irq:24