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I am using Moode 5.2 with a USB DAC. In /etc/mpd.conf, the device field in the "ALSA default" audio_output block is set to hw:0,0. This is incorrect in my case. I need hw:1,0. I have found the place in /var/www/inc/playerlib.php where this value is read from a database:
$array = sdbquery('select value from cfg_mpd where param="device"', cfgdb_connect());
But I haven't found where the device id is determined and written to the database. Could somebody point me toward the best place to set this value?
Thanks.
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In MPD Config screen set "Device type" to "USB audio device" then save. This process will automatically configure hw:1,0 in mpd.conf.
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Thanks for the prompt reply, Tim. I tried looking in MPD Config, but the "Device type" menu is empty (see image below). Any idea why that would be?
BTW, I have confirmed that everything works if I manually edit mpd.conf, and restart mpd, but of course the configuration gets re-written on boot.
![[Image: 09vr-155xQ2TLFgTbZGb6wTgQ5lK5h2LF3v1ehGg...05-h413-no]](https://lh3.googleusercontent.com/09vr-155xQ2TLFgTbZGb6wTgQ5lK5h2LF3v1ehGgyiBfCtggCPJwhZ53m0gkRe1kz0bN8-RfsSgRjeibB18ApeeOaH8ACTel6kaRqheWRuNuR00D1nM1pN6XAefEupcvOijxIy6VCfu1SS_eIt5bO1Ob-srVFEdBFxh5BjlNZ66bVNBxSeIpWjAiRKiHHCtBfWLTLKxRVklmxaAJT9JrGwWDrNh2-2k2zgogbuZ4Z5agW7Gg8UZqpRjicI3SiTjILe-DBGQQa_4tablzYl0yEKsZJbd4w6p8w_OUSIYFgNthSja-yMPqCOpgeckBPdhwCh7yqPa9_JTkFLEVVtnPeRkxyX_e-eJ_Z7NycR5avGW1AIR8968CV3HvgmhP7sYVGmPmufBROi5BHbzVxnvIzXrDyQXtP7UKT1PNFvYn8brHD1v88ZdGMlsUXCwK04g2KbcPkC7TSyxciH1pQTvnkuBPhTcylyL1ylv0qdMgBVJz9pd6fbxTjqqt1rM3mFfgcHhzrcutYDy3WyBsAJo-x5TV_HCOdED9oOrcggBYa5VJGW2a76r6k_ueylGmvkbmVYdYD8mefYmhXVD4zRbqhi2pkBuJDaQONdGOubFoyBqGP7TSirWjyELbkHTtV0Mi_EHXcHzzt3AjYWrRKPozRaM2D54Gl6pKvuy8VBPuNsrTEyAqYOZynJ49gqhVpLp7oYA3sxkwDLTfVox-bylKzbixkQ=w705-h413-no)
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Very odd. "Nothing selected" suggests some breakage.
To troubleshoot try the following:
1. Unplug USB DAC
2. Open Audio Config and set I2S audio device to "None"
3. Reboot
4. Open MPD Config
5. Verify that Audio device = "On-board audio device"
6. Plug in USB DAC
7. Close then Reopen MPD Config
8. Verify that "USB audio device" has been added to the Audio device dropdown
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I did steps 1 through 4, but there were still no options in the device menu.
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@ callum
Perhaps moOde's udev rules don't detect your USB DAC as an audio device?
What is the device actually (make and model)?
When it's plugged in,
- What is the lsusb output?
- What is the verbose lsusb output for it? Does it show lots of stanzas containing telltale strings like "Audio", "AudioControl", "AudioStreaming", "Decoded PCM samples" and so forth?
Examples for a moOde player of mine with a Creative Technology BT-W2 Bluetooth adapter (to drive my headphones) which detects as a USB DAC
Code: pi@moodeHS:~ $ lsusb
Bus 001 Device 002: ID 041e:3125 Creative Technology, Ltd <-- the BT W2
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
#################################################
pi@moodeHS:~ $ sudo lsusb -v -s 001:002 <-- used bus:devnum from above
Bus 001 Device 002: ID 041e:3125 Creative Technology, Ltd
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x041e Creative Technology, Ltd
idProduct 0x3125
bcdDevice 1.00
iManufacturer 0
iProduct 2 Creative Bluetooth Audio W2
iSerial 3 0075FDAE003C0002
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 199
bNumInterfaces 4
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 96mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 0
iInterface 0
AudioControl Interface Descriptor:
bLength 10
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
wTotalLength 52
bInCollection 2
baInterfaceNr( 0) 1
baInterfaceNr( 1) 2
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bNrChannels 2
wChannelConfig 0x0003
Left Front (L)
Right Front (R)
iChannelNames 0
iTerminal 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 3
wTerminalType 0x0301 Speaker
bAssocTerminal 0
bSourceID 1
iTerminal 0
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 4
wTerminalType 0x0203 Personal Microphone
bAssocTerminal 0
bNrChannels 1
wChannelConfig 0x0001
Left Front (L)
iChannelNames 0
iTerminal 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 6
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 4
iTerminal 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 6
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 1
bSubframeSize 2
bBitResolution 16
bSamFreqType 1 Discrete
tSamFreq[ 0] 48000
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0060 1x 96 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 1
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 2
bBitResolution 16
bSamFreqType 1 Discrete
tSamFreq[ 0] 48000
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x81
Sampling Frequency
MaxPacketsOnly
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x00c0 1x 192 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0 No Subclass
bInterfaceProtocol 0 None
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 129
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 1
Device Status: 0x0000
(Bus Powered)
Regards,
Kent
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@ TheOldPresbyope : It's an FiiO e10k, and the computer is a Pi 3B+.
I've pasted the verbose output for lsusb at the bottom of this post, and yes there's a lot of Audio, AudioControl, etc.. I also got this on stderr: "Couldn't open device, some information will be missing," which sounds like it might be relevant.
When I plug in the DAC, `udevadm monitor` prints the following:
Code: KERNEL[620.447807] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2 (usb)
KERNEL[620.448070] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.0 (usb)
KERNEL[620.467950] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.0/0003:1852:7022.0003 (hid)
KERNEL[620.469701] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.0/0003:1852:7022.0003/input/input2 (input)
KERNEL[620.530596] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.0/0003:1852:7022.0003/input/input2/event0 (input)
KERNEL[620.531229] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.0/0003:1852:7022.0003/hidraw/hidraw0 (hidraw)
KERNEL[620.538593] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.1 (usb)
KERNEL[620.560407] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.1/sound/card1 (sound)
KERNEL[620.561086] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.1/sound/card1/pcmC1D0p (sound)
KERNEL[620.561583] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.1/sound/card1/pcmC1D0c (sound)
KERNEL[620.562016] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.1/sound/card1/pcmC1D1p (sound)
KERNEL[620.562441] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.1/sound/card1/controlC1 (sound)
KERNEL[620.562692] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.2 (usb)
KERNEL[620.562922] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.3 (usb)
UDEV [620.584661] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2 (usb)
UDEV [620.591167] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.0 (usb)
UDEV [620.606429] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.0/0003:1852:7022.0003 (hid)
UDEV [620.620115] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.0/0003:1852:7022.0003/hidraw/hidraw0 (hidraw)
UDEV [620.623724] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.0/0003:1852:7022.0003/input/input2 (input)
UDEV [620.758259] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.1 (usb)
UDEV [620.763741] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.3 (usb)
UDEV [620.769004] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.2 (usb)
UDEV [620.781446] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.1/sound/card1 (sound)
UDEV [620.787102] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.1/sound/card1/pcmC1D0c (sound)
KERNEL[620.791684] change /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.1/sound/card1 (sound)
UDEV [620.793900] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.1/sound/card1/pcmC1D1p (sound)
UDEV [620.802395] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.1/sound/card1/pcmC1D0p (sound)
UDEV [620.817208] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.0/0003:1852:7022.0003/input/input2/event0 (input)
UDEV [620.831539] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.1/sound/card1/controlC1 (sound)
UDEV [620.839603] change /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.1/sound/card1 (sound)
Code: Bus 001 Device 005: ID 1852:7022 GYROCOM C&C Co., LTD
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x1852 GYROCOM C&C Co., LTD
idProduct 0x7022
bcdDevice 0.01
iManufacturer 1
iProduct 2
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 386
bNumInterfaces 4
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0 No Subclass
bInterfaceProtocol 0 None
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.00
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 58
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0012 1x 18 bytes
bInterval 32
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 0
iInterface 3
AudioControl Interface Descriptor:
bLength 10
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
wTotalLength 62
bInCollection 2
baInterfaceNr( 0) 2
baInterfaceNr( 1) 3
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 5
wTerminalType 0x0605 SPDIF interface
bAssocTerminal 0
bNrChannels 2
wChannelConfig 0x0003
Left Front (L)
Right Front (R)
iChannelNames 0
iTerminal 0
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 9
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bNrChannels 2
wChannelConfig 0x0003
Left Front (L)
Right Front (R)
iChannelNames 0
iTerminal 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 3
wTerminalType 0x0605 SPDIF interface
bAssocTerminal 0
bSourceID 16
iTerminal 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 7
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 5
iTerminal 0
AudioControl Interface Descriptor:
bLength 10
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 16
bSourceID 9
bControlSize 1
bmaControls( 0) 0x01
Mute Control
bmaControls( 1) 0x02
Volume Control
bmaControls( 2) 0x02
Volume Control
iFeature 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 7
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 26
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 2
bBitResolution 16
bSamFreqType 6 Discrete
tSamFreq[ 0] 8000
tSamFreq[ 1] 16000
tSamFreq[ 2] 32000
tSamFreq[ 3] 44100
tSamFreq[ 4] 48000
tSamFreq[ 5] 96000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x0184 1x 388 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x01
Sampling Frequency
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 2 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 7
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 26
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 3
bBitResolution 24
bSamFreqType 6 Discrete
tSamFreq[ 0] 8000
tSamFreq[ 1] 16000
tSamFreq[ 2] 32000
tSamFreq[ 3] 44100
tSamFreq[ 4] 48000
tSamFreq[ 5] 96000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x0246 1x 582 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x01
Sampling Frequency
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 2 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 9
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 20
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 2
bBitResolution 16
bSamFreqType 4 Discrete
tSamFreq[ 0] 32000
tSamFreq[ 1] 44100
tSamFreq[ 2] 48000
tSamFreq[ 3] 96000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x0184 1x 388 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x01
Sampling Frequency
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 2 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 9
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 20
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 3
bBitResolution 24
bSamFreqType 4 Discrete
tSamFreq[ 0] 32000
tSamFreq[ 1] 44100
tSamFreq[ 2] 48000
tSamFreq[ 3] 96000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x0246 1x 582 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x01
Sampling Frequency
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 2 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 3
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 9
bDelay 0 frames
wFormatTag 8193 IEC1937_AC-3
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 3 (FORMAT_TYPE_III)
bNrChannels 2
bSubframeSize 2
bBitResolution 16
bSamFreqType 1 Discrete
tSamFreq[ 0] 48000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x00c0 1x 192 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x01
Sampling Frequency
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 2 Decoded PCM samples
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Reputation:
206
@ callum
That error message occurs because you didn't run the command as root ( sudo lsusb ...). The effect of not accessing the device is pretty harmless. In my example, I lose two identification strings in the first stanza:
Code: idVendor 0x041e Creative Technology, Ltd
idProduct 0x3125
bcdDevice 1.00
iManufacturer 0
iProduct 2 Creative Bluetooth Audio W2 <-- this becomes just "2"
iSerial 3 0075FDAE003C0002 <-- and this just "3"
At a glance, it seems udev did its job. You should see the results in the list of cards output of aplay -L. Again, for my example
Code: pi@moodeHS:~ $ aplay -L|more
null
Discard all samples (playback) or generate zero samples (capture)
btaplay_dmix
alsaequal
plug_alsaequal
btstream
crossfeed
plug_bs2b
eqfa4p
plug_eqfa4p
invpolarity
default
sysdefault:CARD=W2
Creative Bluetooth Audio W2, USB Audio
Default Audio Device
front:CARD=W2,DEV=0
Creative Bluetooth Audio W2, USB Audio
Front speakers
surround21:CARD=W2,DEV=0
Creative Bluetooth Audio W2, USB Audio
2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=W2,DEV=0
Creative Bluetooth Audio W2, USB Audio
4.0 Surround output to Front and Rear speakers
surround41:CARD=W2,DEV=0
Creative Bluetooth Audio W2, USB Audio
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=W2,DEV=0
Creative Bluetooth Audio W2, USB Audio
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=W2,DEV=0
Creative Bluetooth Audio W2, USB Audio
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=W2,DEV=0
Creative Bluetooth Audio W2, USB Audio
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=W2,DEV=0
Creative Bluetooth Audio W2, USB Audio
IEC958 (S/PDIF) Digital Audio Output
dmix:CARD=W2,DEV=0
Creative Bluetooth Audio W2, USB Audio
Direct sample mixing device
dsnoop:CARD=W2,DEV=0
Creative Bluetooth Audio W2, USB Audio
Direct sample snooping device
hw:CARD=W2,DEV=0
Creative Bluetooth Audio W2, USB Audio
Direct hardware device without any conversions
plughw:CARD=W2,DEV=0
Creative Bluetooth Audio W2, USB Audio
Hardware device with all software conversions
Tim's the master of all things relating to the audio chain. I'm a dilettante and need to mull this one through now that I've got more info.
Regards,
Kent
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(05-26-2019, 01:26 AM)callum Wrote: I did steps 1 through 4, but there were still no options in the device menu.
That indicates a broken installation. Try a fresh image :-)
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Haha, that solved it. Easy fix  I wouldn't have thought a problem writing the image could have such innocuous consequences.
Thanks for the help Tim and Kurt!
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