!!################################
!!ALSA Information Script v 0.4.65
!!################################

!!Script ran on: Mon Mar 20 17:57:03 UTC 2023


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

Debian GNU/Linux 11 \n \l PRETTY_NAME="Debian GNU/Linux 11 (bullseye)" 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:  
System SKU:        
Board Vendor:      
Board Name:        


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



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

Kernel release:    6.1.19-v8 
Operating System:  GNU/Linux
Architecture:      aarch64
Processor:         unknown
SMP Enabled:       Yes


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

Driver version:     k6.1.19-v8 
Library version:    1.2.4
Utilities version:  1.2.4


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

snd_bcm2835


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

No sound servers found.


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

 0 [Headphones     ]: bcm2835_headpho - bcm2835 Headphones
                      bcm2835 Headphones


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



!!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
snd_bcm2835: enable_headphones=0
snd_bcm2835: enable_headphones=1
snd_bcm2835: enable_hdmi=1


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

!!Module: snd_bcm2835
	enable_hdmi : Y
	enable_headphones : Y
	force_bulk : N
	num_channels : 8


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

crw-rw---- 1 root audio 116,  0 Mar 20 17:33 /dev/snd/controlC0
crw-rw---- 1 root audio 116, 16 Mar 20 17:33 /dev/snd/pcmC0D0p
crw-rw---- 1 root audio 116,  1 Mar 20 17:33 /dev/snd/seq
crw-rw---- 1 root audio 116, 33 Mar 20 17:33 /dev/snd/timer

/dev/snd/by-path:
total 0
drwxr-xr-x 2 root root  60 Mar 20 17:33 .
drwxr-xr-x 3 root root 140 Mar 20 17:33 ..
lrwxrwxrwx 1 root root  12 Mar 20 17:33 platform-bcm2835_audio -> ../controlC0


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

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

pcm.!default {
	type plug
	slave.pcm {
		type hw
		card 0
		device 0
	}
}

ctl.!default {
	type hw
	card 0
}


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

APLAY

**** List of PLAYBACK Hardware Devices ****
card 0: Headphones [bcm2835 Headphones], device 0: bcm2835 Headphones [bcm2835 Headphones]
  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

ARECORD

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

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

!!-------Mixer controls for card Headphones

Card hw:0 'Headphones'/'bcm2835 Headphones'
  Mixer name	: 'Broadcom Mixer'
  Components	: ''
  Controls      : 2
  Simple ctrls  : 1
Simple mixer control 'PCM',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback -10239 - 400
  Mono: Playback 0 [96%] [0.00dB] [on]


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

--startcollapse--
state.Headphones {
	control.1 {
		iface MIXER
		name 'PCM Playback Volume'
		value 0
		comment {
			access 'read write'
			type INTEGER
			count 1
			range '-10239 - 400'
			dbmin -9999999
			dbmax 400
			dbvalue.0 0
		}
	}
	control.2 {
		iface MIXER
		name 'PCM Playback Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
}
--endcollapse--


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

bcm2835_codec
bcm2835_mmal_vchiq
binfmt_misc
brcmfmac
brcmutil
cfg80211
fuse
ip_tables
ipv6
mc
nvmem_rmem
raspberrypi_hwmon
rfkill
rpivid_hevc
snd
snd_bcm2835
snd_pcm
snd_timer
uio
uio_pdrv_genirq
v4l2_mem2mem
vc_sm_cma
videobuf2_common
videobuf2_dma_contig
videobuf2_memops
videobuf2_v4l2
videodev
x_tables


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

[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 1009408
[    0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_headphones=0 snd_bcm2835.enable_headphones=1 snd_bcm2835.enable_hdmi=1 bcm2708_fb.fbwidth=0 bcm2708_fb.fbheight=0 bcm2708_fb.fbdepth=16 bcm2708_fb.fbswap=1 smsc95xx.macaddr=E4:5F:01:14:CE:BD vc_mem.mem_base=0x3f000000 vc_mem.mem_size=0x3f600000  root=PARTUUID=00858852-02 rootfstype=ext4 rootwait net.ifnames=0 logo.nologo console=tty1
[    0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes, linear)
--
[    2.304512] systemd-journald[137]: Received client request to flush runtime journal.
[    2.562169] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned.
[    2.577387] mc: Linux media interface: v0.10


!!Packages installed
!!--------------------

ii  alsa-utils                    1.2.4-1 rpt1                     arm64        Utilities for configuring and using ALSA