!!################################ !!ALSA Information Script v 0.4.64 !!################################ !!Script ran on: Fri Mar 20 05:47:53 UTC 2020 !!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: 4.19.75-v7 Operating System: GNU/Linux Architecture: armv7l Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k4.19.75-v7 Library version: 1.1.8 Utilities version: 1.1.8 !!Loaded ALSA modules !!------------------- snd_bcm2835 snd_usb_audio (null) !!Sound Servers on this system !!---------------------------- No sound servers found. !!Soundcards recognised by ALSA !!----------------------------- 0 [ALSA ]: bcm2835_alsa - bcm2835 ALSA bcm2835 ALSA 1 [C170 ]: USB-Audio - Webcam C170 Webcam C170 at usb-3f980000.usb-1.4, high speed 2 [vc4hdmi ]: vc4-hdmi - vc4-hdmi vc4-hdmi !!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 !!Loaded sound module options !!--------------------------- !!Module: snd_bcm2835 enable_compat_alsa : Y enable_hdmi : N enable_headphones : N force_bulk : N !!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) use_vmalloc : Y vid : -1,-1,-1,-1,-1,-1,-1,-1 !!Module: (null) * : !!USB Mixer information !!--------------------- --startcollapse-- USB Mixer: usb_id=0x046d082b, ctrlif=2, ctlerr=0 Card: Webcam C170 at usb-3f980000.usb-1.4, high speed --endcollapse-- !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 0 Mar 19 22:44 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 32 Mar 19 22:44 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 64 Mar 19 22:44 /dev/snd/controlC2 crw-rw---- 1 root audio 116, 16 Mar 19 22:44 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 17 Mar 19 22:44 /dev/snd/pcmC0D1p crw-rw---- 1 root audio 116, 18 Mar 19 22:44 /dev/snd/pcmC0D2p crw-rw---- 1 root audio 116, 56 Mar 19 22:44 /dev/snd/pcmC1D0c crw-rw---- 1 root audio 116, 80 Mar 19 22:44 /dev/snd/pcmC2D0p crw-rw---- 1 root audio 116, 1 Mar 19 22:44 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Mar 19 22:44 /dev/snd/timer /dev/snd/by-id: total 0 drwxr-xr-x 2 root root 60 Mar 19 22:44 . drwxr-xr-x 4 root root 280 Mar 19 22:44 .. lrwxrwxrwx 1 root root 12 Mar 19 22:44 usb-_Webcam_C170-02 -> ../controlC1 /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 100 Mar 19 22:44 . drwxr-xr-x 4 root root 280 Mar 19 22:44 .. lrwxrwxrwx 1 root root 12 Mar 19 22:44 platform-3f902000.hdmi -> ../controlC2 lrwxrwxrwx 1 root root 12 Mar 19 22:44 platform-3f980000.usb-usb-0:1.4:1.2 -> ../controlC1 lrwxrwxrwx 1 root root 12 Mar 19 22:44 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 card 2: vc4hdmi [vc4-hdmi], device 0: MAI PCM vc4-hdmi-hifi-0 [] Subdevices: 1/1 Subdevice #0: subdevice #0 ARECORD **** List of CAPTURE Hardware Devices **** card 1: C170 [Webcam C170], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 !!Amixer output !!------------- !!-------Mixer controls for card 0 [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 -1689 [80%] [-16.89dB] [on] !!-------Mixer controls for card 1 [C170] Card hw:1 'C170'/'Webcam C170 at usb-3f980000.usb-1.4, high speed' Mixer name : 'USB Mixer' Components : 'USB046d:082b' Controls : 2 Simple ctrls : 0 !!-------Mixer controls for card 2 [vc4hdmi] Card hw:2 'vc4hdmi'/'vc4-hdmi' Mixer name : '' Components : '' Controls : 1 Simple ctrls : 0 !!Alsactl output !!-------------- --startcollapse-- state.ALSA { control.1 { iface MIXER name 'PCM Playback Volume' value -1689 comment { access 'read write' type INTEGER count 1 range '-10239 - 400' dbmin -9999999 dbmax 400 dbvalue.0 -1689 } } 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 } } } state.C170 { control.1 { iface PCM name 'Capture Channel Map' value 0 comment { access read type INTEGER count 1 range '0 - 36' } } control.2 { iface CARD name 'Keep Interface' value false comment { access 'read write' type BOOLEAN count 1 } } } state.vc4hdmi { control.1 { iface PCM name ELD value '0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' comment { access 'read volatile' type BYTES count 128 } } } --endcollapse-- !!All Loaded Modules !!------------------ Module bnep hci_uart btbcm serdev bluetooth ecdh_generic 8021q garp stp llc evdev sg brcmfmac vc4 snd_usb_audio brcmutil drm_kms_helper snd_hwdep snd_usbmidi_lib snd_rawmidi uvcvideo snd_seq_device uas drm sha256_generic drm_panel_orientation_quirks snd_soc_core cfg80211 snd_compress snd_pcm_dmaengine rfkill syscopyarea sysfillrect sysimgblt fb_sys_fops snd_bcm2835 snd_pcm snd_timer raspberrypi_hwmon snd hwmon bcm2835_codec bcm2835_v4l2 v4l2_mem2mem bcm2835_mmal_vchiq videobuf2_dma_contig v4l2_common videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common i2c_bcm2835 videodev media vc_sm_cma uio_pdrv_genirq uio fixed ip_tables x_tables ipv6 !!ALSA/HDA dmesg !!-------------- [ 4.624326] bcm2835-codec bcm2835-codec: Loaded V4L2 isp [ 4.754934] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 4.790869] bcm2835_audio soc:audio: card created with 8 channels -- [ 5.056093] USB Video Class driver (1.1.1) [ 5.190693] usbcore: registered new interface driver snd-usb-audio [ 5.202747] brcmfmac: F1 signature read @0x18000000=0x1541a9a6