!!################################ !!ALSA Information Script v 0.4.64 !!################################ !!Script ran on: Fri Oct 11 22:25:42 UTC 2019 !!Linux Distribution !!------------------ ID_LIKE=debian !!DMI Information !!--------------- Manufacturer: Product Name: Product Version: Firmware Version: !!Kernel Information !!------------------ Kernel release: 4.19.66 Operating System: GNU/Linux Architecture: armv6l Processor: unknown SMP Enabled: No !!ALSA Version !!------------ Driver version: k4.19.66 Library version: 1.1.3 Utilities version: 1.1.3 !!Loaded ALSA modules !!------------------- snd_bcm2835 snd_usb_audio !!Sound Servers on this system !!---------------------------- No sound servers found. !!Soundcards recognised by ALSA !!----------------------------- 0 [ALSA ]: bcm2835_alsa - bcm2835 ALSA bcm2835 ALSA 1 [AMP ]: USB-Audio - SMSL AD18 AMP SMSL AUDIO SMSL AD18 AMP at usb-20980000.usb-1, full speed !!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 !!USB Mixer information !!--------------------- --startcollapse-- USB Mixer: usb_id=0x04510003, ctrlif=0, ctlerr=0 Card: SMSL AUDIO SMSL AD18 AMP at usb-20980000.usb-1, full speed --endcollapse-- !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 0 Oct 11 23:17 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 32 Oct 11 23:17 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 16 Oct 11 23:17 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 17 Oct 11 23:17 /dev/snd/pcmC0D1p crw-rw---- 1 root audio 116, 18 Oct 11 23:17 /dev/snd/pcmC0D2p crw-rw---- 1 root audio 116, 48 Oct 11 23:17 /dev/snd/pcmC1D0p crw-rw---- 1 root audio 116, 1 Oct 11 23:17 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Oct 11 23:17 /dev/snd/timer /dev/snd/by-id: total 0 drwxr-xr-x 2 root root 60 Oct 11 23:17 . drwxr-xr-x 4 root root 240 Oct 11 23:17 .. lrwxrwxrwx 1 root root 12 Oct 11 23:17 usb-SMSL_AUDIO_SMSL_AD18_AMP-00 -> ../controlC1 /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 80 Oct 11 23:17 . drwxr-xr-x 4 root root 240 Oct 11 23:17 .. lrwxrwxrwx 1 root root 12 Oct 11 23:17 platform-20980000.usb-usb-0:1:1.0 -> ../controlC1 lrwxrwxrwx 1 root root 12 Oct 11 23:17 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 1: AMP [SMSL AD18 AMP], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 ARECORD **** List of CAPTURE Hardware Devices **** !!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 -2000 [77%] [-20.00dB] [on] !!-------Mixer controls for card 1 [AMP] Card hw:1 'AMP'/'SMSL AUDIO SMSL AD18 AMP at usb-20980000.usb-1, full speed' Mixer name : 'USB Mixer' Components : 'USB0451:0003' Controls : 2 Simple ctrls : 0 !!Alsactl output !!-------------- --startcollapse-- state.ALSA { control.1 { iface MIXER name 'PCM Playback Volume' value -2000 comment { access 'read write' type INTEGER count 1 range '-10239 - 400' dbmin -9999999 dbmax 400 dbvalue.0 -2000 } } 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.AMP { control.1 { iface PCM name 'Playback Channel Map' value.0 0 value.1 0 comment { access read type INTEGER count 2 range '0 - 36' } } control.2 { iface CARD name 'Keep Interface' value false comment { access 'read write' type BOOLEAN count 1 } } } --endcollapse-- !!All Loaded Modules !!------------------ Module bnep hci_uart btbcm serdev bluetooth ecdh_generic snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi snd_seq_device brcmfmac brcmutil sha256_generic raspberrypi_hwmon hwmon snd_bcm2835 cfg80211 snd_pcm snd_timer snd rfkill bcm2835_codec bcm2835_v4l2 v4l2_mem2mem v4l2_common bcm2835_mmal_vchiq videobuf2_vmalloc videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 videobuf2_common videodev media vc_sm_cma uio_pdrv_genirq fixed uio ip_tables x_tables ipv6 !!ALSA/HDA dmesg !!-------------- [ 9.944076] bcm2835-codec bcm2835-codec: Loaded V4L2 isp [ 10.457702] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 10.644442] bcm2835_audio soc:audio: card created with 8 channels -- [ 13.468904] usb 1-1: 1:1: cannot get freq at ep 0x1 [ 13.510431] usbcore: registered new interface driver snd-usb-audio [ 14.917594] uart-pl011 20201000.serial: no DMA platform data