!!################################
!!ALSA Information Script v 0.5.3
!!################################

!!Script ran on: Sat Oct 12 20:27:41 UTC 2024


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




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

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


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



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

Kernel release:    #1-NixOS SMP Tue Jan  1 00:00:00 UTC 1980
Operating System:  GNU/Linux
Architecture:      aarch64
Processor:         unknown
SMP Enabled:       Yes


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

Driver version:     k6.6.31
Library version:    
Utilities version:  1.2.10


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

snd_bcm2835 (card 1)


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

Pulseaudio:
      Installed - Yes (/run/current-system/sw/bin/pulseaudio)
      Running - No


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

 1 [Headphones     ]: bcm2835_headpho - bcm2835 Headphones
                      bcm2835 Headphones


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



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

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


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

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


!!Sysfs card info
!!---------------

!!Card: /sys/class/sound/card1
Driver: /sys/bus/platform/drivers/bcm2835_audio
Tree:


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

crw-rw----  1 root audio 116,  3 Jul  5 20:03 /dev/snd/controlC1
crw-rw----  1 root audio 116,  2 Jul  5 20:03 /dev/snd/pcmC1D0p
crw-rw----  1 root audio 116,  1 Oct 12 22:14 /dev/snd/seq
crw-rw----  1 root audio 116, 33 Oct 12 22:14 /dev/snd/timer

/dev/snd/by-path:
total 0
drwxr-xr-x 2 root root  60 Oct 12 11:42 .
drwxr-xr-x 3 root root 140 Oct 12 11:42 ..
lrwxrwxrwx 1 root root  12 Jul  5 20:03 platform-bcm2835_audio -> ../controlC1


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

APLAY

**** List of PLAYBACK Hardware Devices ****
card 1: 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 Headphones

Card sysdefault:1 '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
!!------------------

8021q
atkbd
bcm2835_codec
bcm2835_isp
bcm2835_mmal_vchiq
bcm2835_v4l2
bluetooth
brcmfmac
brcmfmac_wcc
brcmutil
bridge
btbcm
btqca
btsdio
cfg80211
crct10dif_ce
dax
dm_mod
ecc
ecdh_generic
efi_pstore
fuse
garp
hci_uart
hid_logitech_dj
hid_logitech_hidpp
ip6t_rpfilter
ip_tables
ipt_rpfilter
joydev
libps2
llc
macvlan
mc
nf_conntrack
nf_defrag_ipv4
nf_defrag_ipv6
nf_log_syslog
nf_tables
nfnetlink
nft_compat
nvmem_rmem
raspberrypi_gpiomem
raspberrypi_hwmon
rfkill
rpivid_hevc
sch_fq_codel
serio
snd
snd_bcm2835
snd_hwdep
snd_pcm
snd_rawmidi
snd_seq_device
snd_timer
snd_ump
snd_usb_audio
snd_usbmidi_lib
stp
tap
tls
tun
uio
uio_pdrv_genirq
v4l2_mem2mem
vc_sm_cma
videobuf2_common
videobuf2_dma_contig
videobuf2_memops
videobuf2_v4l2
videobuf2_vmalloc
videodev
vivaldi_fmap
x_tables
xhci_pci
xhci_pci_renesas
xt_LOG
xt_conntrack
xt_pkttype
xt_tcpudp


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

[    8.897516] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[    8.906826] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned.
[    8.927350] bcm2835_codec: module is from the staging directory, the quality is unknown, you have been warned.
--
[    8.946839] bcm2835-codec bcm2835-codec: Loaded V4L2 decode
[    8.947084] bcm2835_audio bcm2835_audio: card created with 8 channels
[    8.948397] usb 1-1.2.3: Not enough bandwidth for new device state.
--
[    9.007043] rpi-gpiomem fe200000.gpiomem: initialised 1 regions as /dev/gpiomem
[    9.077288] usbcore: registered new interface driver snd-usb-audio
[    9.105732] bcm2835-isp bcm2835-isp: Device node stats[2] registered as /dev/video16