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
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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'
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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
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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