[alsa-devel] MiniDSP USBStreamer / UAC2 / Alsamixer bogus
Jan Baumgart
raga.raga at gmx.de
Thu May 22 19:36:47 CEST 2014
Hi there,
Today I received a MiniDSP USBStreamer Box.
(http://www.minidsp.com/products/usb-audio-interface/usbstreamer-box)
It's an USB to ADAT optical interface and claims to be UAC2 compliant.
It's based on a XMOS L2 core.
Audio worked out of the box!
8-Channels In & Out :)
But the alsamixer controls seem to be bogus.
Here's a screenshot of qasmixer:
icem.folkwang-uni.de/~jb/geheim/usbstreamer_qasmixer.png
All controls are named "USBStreamer Clock Selector"...
The first control always snaps back to zero.
The following 8 Multi-Controls don't have any effect.
Only the last two Input/Ouput Master controls work as expected.
The most important problem is that I cannot set the clock source:
> amixer -D hw:USBStreamer cset numid=7 1
numid=7,iface=MIXER,name='USBStreamer Clock Selector'
; type=ENUMERATED,access=rw------,values=1,items=2
; Item #0 'USBStreamer Internal Clock'
; Item #1 'USBStreamer ADAT Clock'
: values=0
The value always stays 0 (internal).
On OS X 10.8.5 without installing any driver I see 8 Input/Output
Volume Sliders + Master Sliders and a working Clock Selector.
I'm running debian testing with a 3.13-1-amd64 stock kernel.
Any ideas? I've attached lsusb and amixer infos below...
Cheers & Thanks,
Jan
_________________________________________________
> amixer -D hw:USBStreamer controls
numid=7,iface=MIXER,name='USBStreamer Clock Selector'
numid=8,iface=MIXER,name='USBStreamer Clock Selector Capture Switch'
numid=9,iface=MIXER,name='USBStreamer Clock Selector Capture
Switch',index=1
numid=10,iface=MIXER,name='USBStreamer Clock Selector Capture Volume'
numid=11,iface=MIXER,name='USBStreamer Clock Selector Capture
Volume',index=1
numid=3,iface=MIXER,name='USBStreamer Clock Selector Playback Switch'
numid=4,iface=MIXER,name='USBStreamer Clock Selector Playback
Switch',index=1
numid=5,iface=MIXER,name='USBStreamer Clock Selector Playback Volume'
numid=6,iface=MIXER,name='USBStreamer Clock Selector Playback
Volume',index=1
numid=2,iface=PCM,name='Capture Channel Map'
numid=1,iface=PCM,name='Playback Channel Map'
______________________________________________________________-
> amixer -D hw:USBStreamer contents
numid=7,iface=MIXER,name='USBStreamer Clock Selector'
; type=ENUMERATED,access=rw------,values=1,items=2
; Item #0 'USBStreamer Internal Clock'
; Item #1 'USBStreamer ADAT Clock'
: values=0
numid=8,iface=MIXER,name='USBStreamer Clock Selector Capture Switch'
; type=BOOLEAN,access=rw------,values=8
: values=on,on,on,on,on,on,on,on
numid=9,iface=MIXER,name='USBStreamer Clock Selector Capture
Switch',index=1
; type=BOOLEAN,access=rw------,values=1
: values=on
numid=10,iface=MIXER,name='USBStreamer Clock Selector Capture Volume'
; type=INTEGER,access=rw---R--,values=8,min=0,max=255,step=0
: values=255,255,255,255,255,255,255,255
| dBminmax-min=-127.50dB,max=0.00dB
numid=11,iface=MIXER,name='USBStreamer Clock Selector Capture
Volume',index=1
; type=INTEGER,access=rw---R--,values=1,min=0,max=255,step=0
: values=255
| dBminmax-min=-127.50dB,max=0.00dB
numid=3,iface=MIXER,name='USBStreamer Clock Selector Playback Switch'
; type=BOOLEAN,access=rw------,values=8
: values=on,on,on,on,on,on,on,on
numid=4,iface=MIXER,name='USBStreamer Clock Selector Playback
Switch',index=1
; type=BOOLEAN,access=rw------,values=1
: values=on
numid=5,iface=MIXER,name='USBStreamer Clock Selector Playback Volume'
; type=INTEGER,access=rw---R--,values=8,min=0,max=255,step=0
: values=255,255,255,255,255,255,255,255
| dBminmax-min=-127.50dB,max=0.00dB
numid=6,iface=MIXER,name='USBStreamer Clock Selector Playback
Volume',index=1
; type=INTEGER,access=rw---R--,values=1,min=0,max=255,step=0
: values=255
| dBminmax-min=-127.50dB,max=0.00dB
numid=2,iface=PCM,name='Capture Channel Map'
; type=INTEGER,access=r----R--,values=8,min=0,max=36,step=0
: values=0,0,0,0,0,0,0,0
| | chmap-fixed=FL,FR,FC,LFE,RL,RR,FLC,FRC
numid=1,iface=PCM,name='Playback Channel Map'
; type=INTEGER,access=r----R--,values=8,min=0,max=36,step=0
: values=0,0,0,0,0,0,0,0
| | chmap-fixed=FL,FR,FC,LFE,RL,RR,FLC,FRC
______________________________________________________________
> lsusb -s 3:10 -v
Bus 003 Device 010: ID 2752:0016
Couldn't open device, some information will be missing
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2 ?
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x2752
idProduct 0x0016
bcdDevice 5.30
iManufacturer 1
iProduct 2
iSerial 3
bNumConfigurations 2
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 524
bNumInterfaces 4
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 3
bFunctionClass 1 Audio
bFunctionSubClass 0
bFunctionProtocol 32
iFunction 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 32
iInterface 2
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 2.00
bCategory 8
wTotalLength 257
bmControl 0x00
AudioControl Interface Descriptor:
bLength 8
bDescriptorType 36
bDescriptorSubtype 10 (CLOCK_SOURCE)
bClockID 41
bmAttributes 0x03 Internal programmable Clock
bmControls 0x07
Clock Frequency Control (read/write)
Clock Validity Control (read-only)
bAssocTerminal 0
iClockSource 9
AudioControl Interface Descriptor:
bLength 8
bDescriptorType 36
bDescriptorSubtype 10 (CLOCK_SOURCE)
bClockID 43
bmAttributes 0x00 External Clock
bmControls 0x07
Clock Frequency Control (read/write)
Clock Validity Control (read-only)
bAssocTerminal 0
iClockSource 11
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 11 (CLOCK_SELECTOR)
bUnitID 40
bNrInPins 2
baCSourceID( 0) 41
baCSourceID( 1) 43
bmControls 0x03
Clock Selector Control (read/write)
iClockSelector 8
AudioControl Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 2
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bCSourceID 40
bNrChannels 8
bmChannelConfig 0x00000000
bmControls 0x0000
iChannelNames 15
iTerminal 6
AudioControl Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 9 (EXTENSION_UNIT)
Warning: Descriptor too short
bUnitID 51
wExtensionCode 0
bNrPins 1
baSourceID( 0) 2
bNrChannels 8
wChannelConfig 0
iChannelNames 3
bmControls 0x00
iExtension 42
AudioControl Interface Descriptor:
bLength 42
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 10
bSourceID 51
bmaControls( 0) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 1) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 2) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 3) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 4) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 5) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 6) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 7) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 8) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
iFeature 0
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 20
wTerminalType 0x0301 Speaker
bAssocTerminal 0
bSourceID 10
bCSourceID 40
bmControls 0x0000
iTerminal 0
AudioControl Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0201 Microphone
bAssocTerminal 0
bCSourceID 40
bNrChannels 8
bmChannelConfig 0x00000000
bmControls 0x0000
iChannelNames 33
iTerminal 0
AudioControl Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 9 (EXTENSION_UNIT)
Warning: Descriptor too short
bUnitID 52
wExtensionCode 0
bNrPins 1
baSourceID( 0) 1
bNrChannels 8
wChannelConfig 0
iChannelNames 3
bmControls 0x00
iExtension 42
AudioControl Interface Descriptor:
bLength 42
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 11
bSourceID 52
bmaControls( 0) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 1) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 2) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 3) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 4) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 5) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 6) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 7) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 8) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
iFeature 0
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 22
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 11
bCSourceID 40
bmControls 0x0000
iTerminal 7
AudioControl Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 9 (EXTENSION_UNIT)
Warning: Descriptor too short
bUnitID 50
wExtensionCode 0
bNrPins 2
baSourceID( 0) 2
baSourceID( 1) 1
bNrChannels 18
wChannelConfig 0
iChannelNames 3
bmControls 0x00
iExtension 32
AudioControl Interface Descriptor:
bLength 32
bDescriptorType 36
bDescriptorSubtype 4 (MIXER_UNIT)
bUnitID 60
bNrPins 1
baSourceID( 0) 50
bNrChannels 8
bmChannelConfig 0x00000000
iChannelNames 49
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
bmControls 00
iMixer 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0006 1x 6 bytes
bInterval 8
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 4
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 2
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 4
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 2
bmControls 0x00
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 8
bmChannelConfig 0x00000000
iChannelNames 15
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0400 1x 1024 bytes
bInterval 1
AudioControl Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 8
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 17
Transfer Type Isochronous
Synch Type None
Usage Type Feedback
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 4
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 2
bNumEndpoints 2
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 4
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 2
bmControls 0x00
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 8
bmChannelConfig 0x00000000
iChannelNames 15
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0400 1x 1024 bytes
bInterval 1
AudioControl Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 8
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 17
Transfer Type Isochronous
Synch Type None
Usage Type Feedback
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 8
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 5
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 5
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 22
bmControls 0x00
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 8
bmChannelConfig 0x00000000
iChannelNames 33
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0400 1x 1024 bytes
bInterval 1
AudioControl Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 8
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 5
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 22
bmControls 0x00
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 4
bmChannelConfig 0x00000000
iChannelNames 33
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0400 1x 1024 bytes
bInterval 1
AudioControl Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 8
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 254 Application Specific Interface
bInterfaceSubClass 1 Device Firmware Update
bInterfaceProtocol 1
iInterface 12
Device Firmware Upgrade Interface Descriptor:
bLength 9
bDescriptorType 33
bmAttributes 7
Will Not Detach
Manifestation Tolerant
Upload Supported
Download Supported
wDetachTimeout 250 milliseconds
wTransferSize 64 bytes
bcdDFUVersion 1.10
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 524
bNumInterfaces 4
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 3
bFunctionClass 1 Audio
bFunctionSubClass 0
bFunctionProtocol 32
iFunction 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 32
iInterface 2
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 2.00
bCategory 8
wTotalLength 257
bmControl 0x00
AudioControl Interface Descriptor:
bLength 8
bDescriptorType 36
bDescriptorSubtype 10 (CLOCK_SOURCE)
bClockID 41
bmAttributes 0x03 Internal programmable Clock
bmControls 0x07
Clock Frequency Control (read/write)
Clock Validity Control (read-only)
bAssocTerminal 0
iClockSource 9
AudioControl Interface Descriptor:
bLength 8
bDescriptorType 36
bDescriptorSubtype 10 (CLOCK_SOURCE)
bClockID 43
bmAttributes 0x00 External Clock
bmControls 0x07
Clock Frequency Control (read/write)
Clock Validity Control (read-only)
bAssocTerminal 0
iClockSource 11
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 11 (CLOCK_SELECTOR)
bUnitID 40
bNrInPins 2
baCSourceID( 0) 41
baCSourceID( 1) 43
bmControls 0x03
Clock Selector Control (read/write)
iClockSelector 8
AudioControl Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 2
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bCSourceID 40
bNrChannels 8
bmChannelConfig 0x00000000
bmControls 0x0000
iChannelNames 15
iTerminal 6
AudioControl Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 9 (EXTENSION_UNIT)
Warning: Descriptor too short
bUnitID 51
wExtensionCode 0
bNrPins 1
baSourceID( 0) 2
bNrChannels 8
wChannelConfig 0
iChannelNames 3
bmControls 0x00
iExtension 42
AudioControl Interface Descriptor:
bLength 42
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 10
bSourceID 51
bmaControls( 0) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 1) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 2) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 3) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 4) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 5) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 6) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 7) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 8) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
iFeature 0
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 20
wTerminalType 0x0301 Speaker
bAssocTerminal 0
bSourceID 10
bCSourceID 40
bmControls 0x0000
iTerminal 0
AudioControl Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0201 Microphone
bAssocTerminal 0
bCSourceID 40
bNrChannels 8
bmChannelConfig 0x00000000
bmControls 0x0000
iChannelNames 33
iTerminal 0
AudioControl Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 9 (EXTENSION_UNIT)
Warning: Descriptor too short
bUnitID 52
wExtensionCode 0
bNrPins 1
baSourceID( 0) 1
bNrChannels 8
wChannelConfig 0
iChannelNames 3
bmControls 0x00
iExtension 42
AudioControl Interface Descriptor:
bLength 42
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 11
bSourceID 52
bmaControls( 0) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 1) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 2) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 3) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 4) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 5) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 6) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 7) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls( 8) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
iFeature 0
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 22
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 11
bCSourceID 40
bmControls 0x0000
iTerminal 7
AudioControl Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 9 (EXTENSION_UNIT)
Warning: Descriptor too short
bUnitID 50
wExtensionCode 0
bNrPins 2
baSourceID( 0) 2
baSourceID( 1) 1
bNrChannels 18
wChannelConfig 0
iChannelNames 3
bmControls 0x00
iExtension 32
AudioControl Interface Descriptor:
bLength 32
bDescriptorType 36
bDescriptorSubtype 4 (MIXER_UNIT)
bUnitID 60
bNrPins 1
baSourceID( 0) 50
bNrChannels 8
bmChannelConfig 0x00000000
iChannelNames 49
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
bmControls 00
iMixer 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0006 1x 6 bytes
bInterval 8
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 4
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 2
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 4
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 2
bmControls 0x00
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 8
bmChannelConfig 0x00000000
iChannelNames 15
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0400 1x 1024 bytes
bInterval 1
AudioControl Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 8
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 17
Transfer Type Isochronous
Synch Type None
Usage Type Feedback
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 4
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 2
bNumEndpoints 2
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 4
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 2
bmControls 0x00
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 8
bmChannelConfig 0x00000000
iChannelNames 15
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0400 1x 1024 bytes
bInterval 1
AudioControl Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 8
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 17
Transfer Type Isochronous
Synch Type None
Usage Type Feedback
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 8
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 5
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 5
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 22
bmControls 0x00
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 8
bmChannelConfig 0x00000000
iChannelNames 33
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0400 1x 1024 bytes
bInterval 1
AudioControl Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 8
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 5
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 22
bmControls 0x00
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 4
bmChannelConfig 0x00000000
iChannelNames 33
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0400 1x 1024 bytes
bInterval 1
AudioControl Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 8
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 254 Application Specific Interface
bInterfaceSubClass 1 Device Firmware Update
bInterfaceProtocol 1
iInterface 12
Device Firmware Upgrade Interface Descriptor:
bLength 9
bDescriptorType 33
bmAttributes 7
Will Not Detach
Manifestation Tolerant
Upload Supported
Download Supported
wDetachTimeout 250 milliseconds
wTransferSize 64 bytes
bcdDFUVersion 1.10
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