[haiku-development] USB Audio (was Re: Creative Extigy and Lexicon Omega Available to interested Developer)
- From: Pete Goodeve <pete.goodeve@xxxxxxxxxxxx>
- To: haiku-development@xxxxxxxxxxxxx
- Date: Thu, 27 Oct 2011 15:41:46 -0700
On Thu, Oct 27, 2011 at 01:48:52PM +0200, Siarzhuk Zharski wrote:
> On Thu, 27 Oct 2011 12:14:21 +0200, François Revol wrote:
> >>>>I recently bought a cheapo usb soundcard just for testing. I don't
> >>>>know
> >>>>which chip it has, but I'll bring it to BeGeistert.
> >>
> >>François, could you, please send me an output of listdev -v for this
> >>device?
>> [....]
> It is standard USB audio. You can try it with my driver from
> http://dev.haiku-os.org/browser/haiku/branches/developer/siarzhuk/usb_audio/.
> At the moment it has the data transfer disabled but the controls web is
> fully implemented, so could see it in the Media Preflet. Which USB
> controller type (EHCI, UHCI, OHCI)do you have?
>
May I join in here? I found a Behringer UCA202 in a thrift shop a while back
[for $7 and still shrink-wrapped!!] and it may be an ideal solution for audio
on
my laptop. I've established [...with difficulty -- ALSA drives me crazy!] that
it works
under Linux, so I imagine it's standard USB audio. I'm appending Haiku and
Linux
listings.
I gather from the above that USB Audio isn't quite available yet?
Ignorant question: how do I get all the files from the above link? Do I have to
download them individually, or is there some SVN command to add them to
my trunk sources?
For reference my (Dell) machine seems to have both UHCI (4) and EHCI(1)
I'm puzzled as to how these relate to the 7 USB ports (one in front, 6 in back).
I've always just plugged things into a convenient slot. Is there a difference?
Or do they just rearrange themselves to suit what's plugged in?
-- Pete --
-----------------------------
Strange how the chip is identified differently in the two listings!
listusb:
[Device /dev/bus/usb/2/1]
Class .................. 0x00 (Per-interface classes)
Subclass ............... 0x00
Protocol ............... 0x00
Max Endpoint 0 Packet .. 8
USB Version ............ 0x0110
Vendor ID .............. 0x08bb
Product ID ............. 0x2902
Product Version ........ 0x0100
Manufacturer String .... "Burr-Brown from TI "
Product String ......... "USB Audio CODEC "
Serial Number .......... ""
[Configuration 0]
Configuration String . ""
[Interface 0]
[Alternate 0 active]
Class .............. 0x01 (Audio)
Subclass ........... 0x01
Protocol ........... 0x00
Interface String ... ""
[Descriptor 0]
Type ............. 0x24
Data ............. 01 00 01 3e 00 02 01 02
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 01 01 00 02 03 00 00 00
[Descriptor 2]
Type ............. 0x24
Data ............. 03 02 01 03 00 03 00
[Descriptor 3]
Type ............. 0x24
Data ............. 06 03 01 01 01 02 02 00
[Descriptor 4]
Type ............. 0x24
Data ............. 02 04 01 02 00 02 03 00 00 00
[Descriptor 5]
Type ............. 0x24
Data ............. 03 05 01 01 00 04 00
[Interface 1]
[Alternate 0 active]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Alternate 1]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 192
Interval ......... 1
Type ............. Isochronous
Direction ........ Output
[Descriptor 0]
Type ............. 0x24
Data ............. 01 01 00 01 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 02 02 10 03 00 7d 00 44 ac 00 80
bb 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 02
[Alternate 2]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 96
Interval ......... 1
Type ............. Isochronous
Direction ........ Output
[Descriptor 0]
Type ............. 0x24
Data ............. 01 01 00 01 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 01 02 10 03 00 7d 00 44 ac 00 80
bb 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 02
[Alternate 3]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 96
Interval ......... 1
Type ............. Isochronous
Direction ........ Output
[Descriptor 0]
Type ............. 0x24
Data ............. 01 01 00 01 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 02 01 08 03 00 7d 00 44 ac 00 80
bb 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 02
[Alternate 4]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 48
Interval ......... 1
Type ............. Isochronous
Direction ........ Output
[Descriptor 0]
Type ............. 0x24
Data ............. 01 01 00 01 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 01 01 08 03 00 7d 00 44 ac 00 80
bb 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 02
[Alternate 5]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 96
Interval ......... 1
Type ............. Isochronous
Direction ........ Output
[Descriptor 0]
Type ............. 0x24
Data ............. 01 01 00 02 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 02 01 08 03 00 7d 00 44 ac 00 80
bb 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 02
[Alternate 6]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 48
Interval ......... 1
Type ............. Isochronous
Direction ........ Output
[Descriptor 0]
Type ............. 0x24
Data ............. 01 01 00 02 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 01 01 08 03 00 7d 00 44 ac 00 80
bb 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 02
[Interface 2]
[Alternate 0 active]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Alternate 1]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 196
Interval ......... 1
Type ............. Isochronous
Direction ........ Input
[Descriptor 0]
Type ............. 0x24
Data ............. 01 05 00 01 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 02 02 10 01 80 bb 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 00
[Alternate 2]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 98
Interval ......... 1
Type ............. Isochronous
Direction ........ Input
[Descriptor 0]
Type ............. 0x24
Data ............. 01 05 00 01 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 01 02 10 01 80 bb 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 00
[Alternate 3]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 180
Interval ......... 1
Type ............. Isochronous
Direction ........ Input
[Descriptor 0]
Type ............. 0x24
Data ............. 01 05 00 01 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 02 02 10 01 44 ac 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 00
[Alternate 4]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 90
Interval ......... 1
Type ............. Isochronous
Direction ........ Input
[Descriptor 0]
Type ............. 0x24
Data ............. 01 05 00 01 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 01 02 10 01 44 ac 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 00
[Alternate 5]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 132
Interval ......... 1
Type ............. Isochronous
Direction ........ Input
[Descriptor 0]
Type ............. 0x24
Data ............. 01 05 00 01 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 02 02 10 01 00 7d 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 00
[Alternate 6]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 66
Interval ......... 1
Type ............. Isochronous
Direction ........ Input
[Descriptor 0]
Type ............. 0x24
Data ............. 01 05 00 01 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 01 02 10 01 00 7d 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 00
[Alternate 7]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 92
Interval ......... 1
Type ............. Isochronous
Direction ........ Input
[Descriptor 0]
Type ............. 0x24
Data ............. 01 05 00 01 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 02 02 10 01 22 56 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 00
[Alternate 8]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 46
Interval ......... 1
Type ............. Isochronous
Direction ........ Input
[Descriptor 0]
Type ............. 0x24
Data ............. 01 05 00 01 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 01 02 10 01 22 56 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 00
[Alternate 9]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 68
Interval ......... 1
Type ............. Isochronous
Direction ........ Input
[Descriptor 0]
Type ............. 0x24
Data ............. 01 05 00 01 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 02 02 10 01 80 3e 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 00
[Alternate 10]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 34
Interval ......... 1
Type ............. Isochronous
Direction ........ Input
[Descriptor 0]
Type ............. 0x24
Data ............. 01 05 00 01 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 01 02 10 01 80 3e 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 00
[Alternate 11]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 34
Interval ......... 1
Type ............. Isochronous
Direction ........ Input
[Descriptor 0]
Type ............. 0x24
Data ............. 01 05 00 01 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 02 01 08 01 80 3e 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 00
[Alternate 12]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 17
Interval ......... 1
Type ............. Isochronous
Direction ........ Input
[Descriptor 0]
Type ............. 0x24
Data ............. 01 05 00 01 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 01 01 08 01 80 3e 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 00
[Alternate 13]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 18
Interval ......... 1
Type ............. Isochronous
Direction ........ Input
[Descriptor 0]
Type ............. 0x24
Data ............. 01 05 00 01 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 02 01 08 01 40 1f 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 00
[Alternate 14]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 9
Interval ......... 1
Type ............. Isochronous
Direction ........ Input
[Descriptor 0]
Type ............. 0x24
Data ............. 01 05 00 01 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 01 01 08 01 40 1f 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 00
[Alternate 15]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 48
Interval ......... 1
Type ............. Isochronous
Direction ........ Input
[Descriptor 0]
Type ............. 0x24
Data ............. 01 05 00 01 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 02 02 10 01 11 2b 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 00
[Alternate 16]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 24
Interval ......... 1
Type ............. Isochronous
Direction ........ Input
[Descriptor 0]
Type ............. 0x24
Data ............. 01 05 00 01 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 01 02 10 01 11 2b 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 00
[Alternate 17]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 24
Interval ......... 1
Type ............. Isochronous
Direction ........ Input
[Descriptor 0]
Type ............. 0x24
Data ............. 01 05 00 01 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 02 01 08 01 11 2b 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 00
[Alternate 18]
Class .............. 0x01 (Audio)
Subclass ........... 0x02
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 12
Interval ......... 1
Type ............. Isochronous
Direction ........ Input
[Descriptor 0]
Type ............. 0x24
Data ............. 01 05 00 01 00
[Descriptor 1]
Type ............. 0x24
Data ............. 02 01 01 01 08 01 11 2b 00
[Descriptor 2]
Type ............. 0x25
Data ............. 01 00 02 00 00
[Interface 3]
[Alternate 0 active]
Class .............. 0x03 (HID)
Subclass ........... 0x00
Protocol ........... 0x00
Interface String ... ""
[Endpoint 0]
MaxPacketSize .... 1
Interval ......... 10
Type ............. Interrupt
Direction ........ Input
[Descriptor 0]
Type ............. 0x21
Data ............. 00 01 00 01 22 1f 00
lsusb:
Bus 001 Device 005: ID 08bb:2902 Texas Instruments Japan
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x08bb Texas Instruments Japan
idProduct 0x2902
bcdDevice 1.00
iManufacturer 1
iProduct 2
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 1191
bNumInterfaces 4
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 100mA
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 62
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 2
wTerminalType 0x0301 Speaker
bAssocTerminal 0
bSourceID 3
iTerminal 0
AudioControl Interface Descriptor:
bLength 10
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 3
bSourceID 1
bControlSize 1
bmaControls( 0) 0x01
Mute
bmaControls( 1) 0x02
Volume
bmaControls( 2) 0x02
Volume
iFeature 0
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 4
wTerminalType 0x0201 Microphone
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 5
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 1
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 2
bBitResolution 16
bSamFreqType 3 Discrete
tSamFreq[ 0] 32000
tSamFreq[ 1] 44100
tSamFreq[ 2] 48000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x02 EP 2 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 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 512 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
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 1
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 1
bSubframeSize 2
bBitResolution 16
bSamFreqType 3 Discrete
tSamFreq[ 0] 32000
tSamFreq[ 1] 44100
tSamFreq[ 2] 48000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x0060 1x 96 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 512 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
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 1
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 1
bBitResolution 8
bSamFreqType 3 Discrete
tSamFreq[ 0] 32000
tSamFreq[ 1] 44100
tSamFreq[ 2] 48000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x0060 1x 96 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 512 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 4
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 17
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 1
bSubframeSize 1
bBitResolution 8
bSamFreqType 3 Discrete
tSamFreq[ 0] 32000
tSamFreq[ 1] 44100
tSamFreq[ 2] 48000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x0030 1x 48 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 512 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 5
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 2 PCM8
AudioStreaming Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 1
bBitResolution 8
bSamFreqType 3 Discrete
tSamFreq[ 0] 32000
tSamFreq[ 1] 44100
tSamFreq[ 2] 48000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x0060 1x 96 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 512 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 6
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 2 PCM8
AudioStreaming Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 1
bSubframeSize 1
bBitResolution 8
bSamFreqType 3 Discrete
tSamFreq[ 0] 32000
tSamFreq[ 1] 44100
tSamFreq[ 2] 48000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x0030 1x 48 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 512 Decoded PCM samples
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 5
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
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x00c4 1x 196 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 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 5
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
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0062 1x 98 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
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 5
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] 44100
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x00b4 1x 180 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 4
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
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] 44100
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x005a 1x 90 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 5
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
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] 32000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0084 1x 132 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 6
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
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] 32000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0042 1x 66 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 7
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
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] 22050
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x005c 1x 92 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 8
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
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] 22050
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x002e 1x 46 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 9
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
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] 16000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0044 1x 68 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 10
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
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] 16000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0022 1x 34 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 11
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
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 1
bBitResolution 8
bSamFreqType 1 Discrete
tSamFreq[ 0] 16000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0022 1x 34 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 12
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
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 1
bBitResolution 8
bSamFreqType 1 Discrete
tSamFreq[ 0] 16000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0011 1x 17 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 13
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
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 1
bBitResolution 8
bSamFreqType 1 Discrete
tSamFreq[ 0] 8000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0012 1x 18 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 14
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
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 1
bBitResolution 8
bSamFreqType 1 Discrete
tSamFreq[ 0] 8000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0009 1x 9 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 15
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
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] 11025
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 13
Transfer Type Isochronous
Synch Type Synchronous
Usage Type Data
wMaxPacketSize 0x0030 1x 48 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 16
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
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] 11025
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 13
Transfer Type Isochronous
Synch Type Synchronous
Usage Type Data
wMaxPacketSize 0x0018 1x 24 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 17
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
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 1
bBitResolution 8
bSamFreqType 1 Discrete
tSamFreq[ 0] 11025
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 13
Transfer Type Isochronous
Synch Type Synchronous
Usage Type Data
wMaxPacketSize 0x0018 1x 24 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 18
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
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 1
bBitResolution 8
bSamFreqType 1 Discrete
tSamFreq[ 0] 11025
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 13
Transfer Type Isochronous
Synch Type Synchronous
Usage Type Data
wMaxPacketSize 0x000c 1x 12 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
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 1.00
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 31
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x85 EP 5 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0001 1x 1 bytes
bInterval 10
Other related posts:
