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

!!Script ran on: Sun Mar  1 15:57:21 UTC 2020


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




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

Manufacturer:      
Product Name:      
Product Version:   
Firmware Version:  
Board Vendor:      
Board Name:        


!!ACPI Device Status Information
!!---------------



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

Kernel release:    4.19.105_1
Operating System:  GNU/Linux
Architecture:      aarch64
Processor:         unknown
SMP Enabled:       Yes


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

Driver version:     k4.19.105_1
Library version:    1.2.2
Utilities version:  1.2.2


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

snd_bcm2835


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

No sound servers found.


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

 0 [ALSA           ]: bcm2835_alsa - bcm2835 ALSA
                      bcm2835 ALSA


!!PCI Soundcards installed in the system
!!--------------------------------------



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

!!Module: snd_bcm2835
	enable_compat_alsa : Y
	enable_hdmi : N
	enable_headphones : N
	force_bulk : N


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

crw-rw---- 1 root audio 116,  0 Jan  1  1970 /dev/snd/controlC0
crw-rw---- 1 root audio 116, 16 Jan  1  1970 /dev/snd/pcmC0D0p
crw-rw---- 1 root audio 116, 17 Jan  1  1970 /dev/snd/pcmC0D1p
crw-rw---- 1 root audio 116, 18 Jan  1  1970 /dev/snd/pcmC0D2p
crw-rw---- 1 root audio 116, 33 Jan  1  1970 /dev/snd/timer

/dev/snd/by-path:
total 0
drwxr-xr-x 2 root root  60 Jan  1  1970 .
drwxr-xr-x 3 root root 160 Jan  1  1970 ..
lrwxrwxrwx 1 root root  12 Jan  1  1970 platform-soc:audio -> ../controlC0


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

APLAY

**** List of PLAYBACK Hardware Devices ****
card 0: ALSA [bcm2835 ALSA], device 0: bcm2835 ALSA [bcm2835 ALSA]
  Subdevices: 7/7
  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
card 0: ALSA [bcm2835 ALSA], device 1: bcm2835 IEC958/HDMI [bcm2835 IEC958/HDMI]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: ALSA [bcm2835 ALSA], device 2: bcm2835 IEC958/HDMI1 [bcm2835 IEC958/HDMI1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

ARECORD

**** List of CAPTURE Hardware Devices ****

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

!!-------Mixer controls for card ALSA

Card hw:0 'ALSA'/'bcm2835 ALSA'
  Mixer name	: 'Broadcom Mixer'
  Components	: ''
  Controls      : 5
  Simple ctrls  : 1
Simple mixer control 'PCM',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback -10239 - 400
  Mono: Playback 400 [100%] [4.00dB] [on]


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

--startcollapse--
state.ALSA {
	control.1 {
		iface MIXER
		name 'PCM Playback Volume'
		value 400
		comment {
			access 'read write'
			type INTEGER
			count 1
			range '-10239 - 400'
			dbmin -9999999
			dbmax 400
			dbvalue.0 400
		}
	}
	control.2 {
		iface MIXER
		name 'PCM Playback Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.3 {
		iface MIXER
		name 'PCM Playback Route'
		value 0
		comment {
			access 'read write'
			type INTEGER
			count 1
			range '0 - 3'
		}
	}
	control.4 {
		iface PCM
		name 'IEC958 Playback Default'
		value '0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
		comment {
			access 'read write'
			type IEC958
			count 1
		}
	}
	control.5 {
		iface PCM
		name 'IEC958 Playback Con Mask'
		value '0200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
		comment {
			access read
			type IEC958
			count 1
		}
	}
}
--endcollapse--


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

8021q
aes_arm64
aes_neon_blk
aes_neon_bs
af_alg
algif_skcipher
bcm2835_codec
bcm2835_mmal_vchiq
bcm2835_v4l2
bluetooth
bnep
brcmfmac
brcmutil
btbcm
cfg80211
cryptd
crypto_simd
ecdh_generic
garp
hci_uart
ipv6
llc
media
rfcomm
rfkill
sdhci_iproc
serdev
sha256_generic
snd
snd_bcm2835
snd_pcm
snd_timer
stp
uas
uio
uio_pdrv_genirq
v4l2_common
v4l2_mem2mem
vc_sm_cma
vchiq
videobuf2_common
videobuf2_dma_contig
videobuf2_memops
videobuf2_v4l2
videobuf2_vmalloc
videodev


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

[    4.469459] vchiq: vchiq_init_state: slot_zero = 00000000e615dcea, is_master = 0
[    4.554725] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned.
[    4.567217] bcm2835_audio soc:audio: card created with 8 channels