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

!!Script ran on: Sat Feb  7 21:56:43 UTC 2026


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

ID_LIKE=debian


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

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


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



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

Kernel release:    5.10.103 
Operating System:  GNU/Linux
Architecture:      armv6l
Processor:         unknown
SMP Enabled:       No


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

Driver version:     k5.10.103 
Library version:    1.1.8
Utilities version:  1.1.8


!!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
!!--------------------------------------



!!Advanced information - PCI Vendor/Device/Subsystem ID's
!!-------------------------------------------------------



!!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_compat_alsa=0
snd_bcm2835: enable_hdmi=1


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

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


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

crw-rw----  1 root audio 116,  0 Feb  7 21:41 /dev/snd/controlC0
crw-rw----  1 root audio 116, 16 Feb  7 21:41 /dev/snd/pcmC0D0p
crw-rw----  1 root audio 116,  1 Feb  7 21:47 /dev/snd/seq
crw-rw----  1 root audio 116, 33 Feb  7 21:41 /dev/snd/timer

/dev/snd/by-path:
total 0
drwxr-xr-x 2 root root  60 Feb  7 21:41 .
drwxr-xr-x 3 root root 140 Feb  7 21:41 ..
lrwxrwxrwx 1 root root  12 Feb  7 21:41 platform-bcm2835_audio -> ../controlC0


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

APLAY

**** List of PLAYBACK Hardware Devices ****
card 0: Headphones [bcm2835 Headphones], device 0: bcm2835 Headphones [bcm2835 Headphones]
  Subdevices: 8/8
  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 0 [Headphones]

Card hw:0 'Headphones'/'bcm2835 Headphones'
  Mixer name	: 'Broadcom Mixer'
  Components	: ''
  Controls      : 2
  Simple ctrls  : 1
Simple mixer control 'Headphone',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback -10239 - 400
  Mono: Playback -472 [92%] [-4.72dB] [on]


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

--startcollapse--
state.Headphones {
	control.1 {
		iface MIXER
		name 'Headphone Playback Volume'
		value -472
		comment {
			access 'read write'
			type INTEGER
			count 1
			range '-10239 - 400'
			dbmin -9999999
			dbmax 400
			dbvalue.0 -472
		}
	}
	control.2 {
		iface MIXER
		name 'Headphone Playback Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
}
--endcollapse--


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

Module
snd_seq_dummy
snd_seq
snd_seq_device
sha256_generic
libsha256
cfg80211
rfkill
8021q
garp
stp
llc
raspberrypi_hwmon
snd_bcm2835
bcm2835_codec
bcm2835_isp
bcm2835_v4l2
v4l2_mem2mem
snd_pcm
videobuf2_vmalloc
bcm2835_mmal_vchiq
videobuf2_dma_contig
videobuf2_memops
snd_timer
videobuf2_v4l2
videobuf2_common
snd
videodev
vc_sm_cma
mc
uio_pdrv_genirq
uio
fixed
uinput
ip_tables
x_tables
ipv6


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

[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 64960
[    0.000000] Kernel command line: coherent_pool=1M snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 bcm2708_fb.fbwidth=656 bcm2708_fb.fbheight=416 bcm2708_fb.fbswap=1 vc_mem.mem_base=0x1ec00000 vc_mem.mem_size=0x20000000  console=ttyAMA0,115200 console=tty1 root=PARTUUID=7511dc2f-02 rootfstype=ext4 fsck.repair=yes rootwait loglevel=3 consoleblank=0 plymouth.enable=0
[    0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes, linear)
--
[   18.208041] bcm2835-isp bcm2835-isp: Register capture node 3 with media controller
[   18.209476] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned.
[   18.220755] bcm2835-isp bcm2835-isp: Loaded V4L2 bcm2835-isp