UAC设备示例
UAC复合设备（麦克风，扬声器，HID设备）的示例
2021-12-19
2300
2
UAC符合设备（麦克风，扬声器，HID设备）在设备管理器中如下图所示：
在BUSHOUND下如下图所示：
UAC音频设备
UAC音频设备包括扬声器和麦克风。
其中USB Pnp Audio Device使用了接口0，1，2，分别用于控制接口，扬声器和麦克风。
HID音量控制设备
USB输入设备用于音频的控制，使用的是HID方式，其抓包内容如下：
Device Length Phase Data
------ -------- ----- ---------------------------- ----------
24.3 4 IN 01 01 00 00 ....
25 5 IN 00 01 01 00 00 .....
25 5 IN 00 01 01 00 00 .....
23.0 CTL 21 01 01 02 00 31 02 00 SET CUR
23.0 2 OUT d3 f3 ..
23.0 CTL 21 01 02 02 00 31 02 00 SET CUR
23.0 2 OUT d3 f3 ..
24.3 4 IN 00 00 00 00 ....
25 5 IN 00 00 00 00 00 .....
25 5 IN 00 00 00 00 00 .....
24.3 4 IN 02 02 00 00 ....
25 5 IN 00 02 02 00 00 .....
25 5 IN 00 02 02 00 00 .....
23.0 CTL 21 01 01 02 00 31 02 00 SET CUR
23.0 2 OUT 24 f3 $.
23.0 CTL 21 01 02 02 00 31 02 00 SET CUR
23.0 2 OUT 24 f3 $.
24.3 4 IN 00 00 00 00 ....
25 5 IN 00 00 00 00 00 .....
25 5 IN 00 00 00 00 00 .....
而其报告描述符内容如下：
24.0 CTL 81 06 00 22 03 00 7e 00 GET DESCRIPTOR
24.0 62 IN 05 0c 09 01 a1 01 15 00 25 01 09 e9 09 ea 09 b5 09 b6 75 01 95 04 81 02 09 e2 09 b7 09 cd 95 03 ........%.......
81 02 05 0b 09 20 95 01 81 06 05 0c 26 ff 00 09 00 75 08 95 03 81 02 09 00 95 04 91 02 c0 ..... ......&...
HID报告描述符的解析如下:
完整的USB描述符
完全的设备描述符如下：
=========================== USB Port7 ===========================
Connection Status : 0x01 (Device is connected)
Port Chain : 2-7
Properties : 0x01
IsUserConnectable : yes
PortIsDebugCapable : no
PortHasMultiCompanions : no
PortConnectorIsTypeC : no
ConnectionIndex : 7
CompanionIndex : 0
CompanionHubSymLnk : USB#ROOT_HUB30#4&186df573&0&0#{f18a0e88-c30c-11d0-8815-00a0c906bed8}
CompanionPortNumber : 23
-> CompanionPortChain : 2-23
======================== USB Device ========================
+++++++++++++++++ Device Information ++++++++++++++++++
Device Description : USB Composite Device
Device Path : \\?\USB#VID_0C76&PID_1721#5&1e7d8db7&0&7#{a5dcbf10-6530-11d2-901f-00c04fb951ed} (GUID_DEVINTERFACE_USB_DEVICE)
Kernel Name : \Device\USBPDO-1
Device ID : USB\VID_0C76&PID_1721\5&1E7D8DB7&0&7
Hardware IDs : USB\VID_0C76&PID_1721&REV_0100 USB\VID_0C76&PID_1721
Driver KeyName : {36fc9e60-c465-11cf-8056-444553540000}\0002 (GUID_DEVCLASS_USB)
Driver : \SystemRoot\System32\drivers\usbccgp.sys (Version: 10.0.14393.1794 Date: 2017-10-09)
Driver Inf : C:\Windows\inf\usb.inf
Legacy BusType : PNPBus
Class : USB
Class GUID : {36fc9e60-c465-11cf-8056-444553540000} (GUID_DEVCLASS_USB)
Service : usbccgp
Enumerator : USB
Location Info : Port_#0007.Hub_#0001
Location IDs : PCIROOT(0)#PCI(1400)#USBROOT(0)#USB(7), ACPI(_SB_)#ACPI(PCI0)#ACPI(XHC_)#ACPI(RHUB)#ACPI(HS07)
Container ID : {68804bfe-5c2a-11ec-a94b-0c9d92c27dc6}
Manufacturer Info : (标准 USB 主控制器)
Capabilities : 0x84 (Removable, SurpriseRemovalOK)
Status : 0x0180600A (DN_DRIVER_LOADED, DN_STARTED, DN_DISABLEABLE, DN_REMOVABLE, DN_NT_ENUMERATOR, DN_NT_DRIVER)
Problem Code : 0
Address : 7
HcDisableSelectiveSuspend: 0
EnableSelectiveSuspend : 0
SelectiveSuspendEnabled : 0
EnhancedPowerMgmtEnabled : 0
IdleInWorkingState : 0
WakeFromSleepState : 0
Power State : D0 (supported: D0, D3, wake from D0)
Child Device 1 : USB 输入设备
Device ID : USB\VID_0C76&PID_1721&MI_03\6&1EBC42E5&0&0003
Class : HIDClass
Driver KeyName : {745a17a0-74d3-11d0-b6fe-00a0c90f57da}\0000 (GUID_DEVCLASS_HIDCLASS)
Service : HidUsb
Child Device 1 : 符合 HID 标准的用户控制设备
Device Path : \\?\HID#VID_0C76&PID_1721&MI_03#7&bb8fd64&0&0000#{4d1e55b2-f16f-11cf-88cb-001111000030} (GUID_DEVINTERFACE_HID)
Kernel Name : \Device\000000e7
Device ID : HID\VID_0C76&PID_1721&MI_03\7&BB8FD64&0&0000
Class : HIDClass
Driver KeyName : {745a17a0-74d3-11d0-b6fe-00a0c90f57da}\0001 (GUID_DEVCLASS_HIDCLASS)
Child Device 2 : USB PnP Audio Device (USB Audio Device)
Device Path 1 : \\?\USB#VID_0C76&PID_1721&MI_00#6&1ebc42e5&0&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\global (AM_KSCATEGORY_CAPTURE)
Device Path 2 : \\?\USB#VID_0C76&PID_1721&MI_00#6&1ebc42e5&0&0000#{65e8773e-8f56-11d0-a3b9-00a0c9223196}\global (AM_KSCATEGORY_RENDER)
Device Path 3 : \\?\USB#VID_0C76&PID_1721&MI_00#6&1ebc42e5&0&0000#{6994ad04-93ef-11d0-a3cc-00a0c9223196}\global (AM_KSCATEGORY_AUDIO)
Kernel Name : \Device\000000dd
Device ID : USB\VID_0C76&PID_1721&MI_00\6&1EBC42E5&0&0000
Class : MEDIA
Driver KeyName : {4d36e96c-e325-11ce-bfc1-08002be10318}\0002 (GUID_DEVCLASS_MEDIA)
Service : usbaudio
Child Device 1 : 麦克风 (USB PnP Audio Device) (音频端点)
Device Path : \\?\SWD#MMDEVAPI#{0.0.1.00000000}.{0dd57387-fce2-4d09-8d98-1de630e0d714}#{2eef81be-33fa-4800-9670-1cd474972c3f} (DEVINTERFACE_AUDIO_CAPTURE)
Kernel Name : \Device\000000ea
Device ID : SWD\MMDEVAPI\{0.0.1.00000000}.{0DD57387-FCE2-4D09-8D98-1DE630E0D714}
Class : AudioEndpoint
Driver KeyName : {c166523c-fe0c-4a94-a586-f1a80cfbbf3e}\0003 (AUDIOENDPOINT_CLASS_UUID)
Child Device 2 : 扬声器 (USB PnP Audio Device) (音频端点)
Device Path : \\?\SWD#MMDEVAPI#{0.0.0.00000000}.{0f44df20-c0cd-4c11-9331-1b0ed6f690b9}#{e6327cad-dcec-4949-ae8a-991e976a79d2} (DEVINTERFACE_AUDIO_RENDER)
Kernel Name : \Device\000000e9
Device ID : SWD\MMDEVAPI\{0.0.0.00000000}.{0F44DF20-C0CD-4C11-9331-1B0ED6F690B9}
Class : AudioEndpoint
Driver KeyName : {c166523c-fe0c-4a94-a586-f1a80cfbbf3e}\0002 (AUDIOENDPOINT_CLASS_UUID)
---------------- Connection Information ---------------
Connection Index : 0x07 (7)
Connection Status : 0x01 (DeviceConnected)
Current Config Value : 0x01
Device Address : 0x07 (7)
Is Hub : 0x00 (no)
Device Bus Speed : 0x01 (Full-Speed)
Number Of Open Pipes : 0x02 (2 pipes to data endpoints)
Pipe[0] : EndpointID=3 Direction=IN ScheduleOffset=0 Type=Interrupt
Pipe[1] : EndpointID=1 Direction=OUT ScheduleOffset=0 Type=Isochronous
Data (HexDump) : 07 00 00 00 12 01 10 01 00 00 00 40 76 0C 21 17 ...........@v.!.
00 01 00 01 00 01 01 01 00 07 00 02 00 00 00 01 ................
00 00 00 07 05 83 03 04 00 20 00 00 00 00 09 05 ......... ......
01 0D C0 00 01 00 00 00 00 .........
--------------- Connection Information V2 -------------
Connection Index : 0x07 (7)
Length : 0x10 (16 bytes)
SupportedUsbProtocols : 0x03
Usb110 : 1 (yes)
Usb200 : 1 (yes)
Usb300 : 0 (no)
ReservedMBZ : 0x00
Flags : 0x00
DevIsOpAtSsOrHigher : 0 (Is not operating at SuperSpeed or higher)
DevIsSsCapOrHigher : 0 (Is not SuperSpeed capable or higher)
DevIsOpAtSsPlusOrHigher : 0 (Is not operating at SuperSpeedPlus or higher)
DevIsSsPlusCapOrHigher : 0 (Is not SuperSpeedPlus capable or higher)
ReservedMBZ : 0x00
Data (HexDump) : 07 00 00 00 10 00 00 00 03 00 00 00 00 00 00 00 ................
---------------------- Device Descriptor ----------------------
bLength : 0x12 (18 bytes)
bDescriptorType : 0x01 (Device Descriptor)
bcdUSB : 0x110 (USB Version 1.10)
bDeviceClass : 0x00 (defined by the interface descriptors)
bDeviceSubClass : 0x00
bDeviceProtocol : 0x00
bMaxPacketSize0 : 0x40 (64 bytes)
idVendor : 0x0C76 (Solid State System Co., Ltd.)
idProduct : 0x1721
bcdDevice : 0x0100
iManufacturer : 0x00 (No String Descriptor)
iProduct : 0x01 (String Descriptor 1)
Language 0x0409 : "USB PnP Audio Device°°°°°°°°"
iSerialNumber : 0x00 (No String Descriptor)
bNumConfigurations : 0x01 (1 Configuration)
Data (HexDump) : 12 01 10 01 00 00 00 40 76 0C 21 17 00 01 00 01 .......@v.!.....
00 01 ..
------------------ Configuration Descriptor -------------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x02 (Configuration Descriptor)
wTotalLength : 0x012E (302 bytes)
bNumInterfaces : 0x04 (4 Interfaces)
bConfigurationValue : 0x01 (Configuration 1)
iConfiguration : 0x00 (No String Descriptor)
bmAttributes : 0x80
D7: Reserved, set 1 : 0x01
D6: Self Powered : 0x00 (no)
D5: Remote Wakeup : 0x00 (no)
D4..0: Reserved, set 0 : 0x00
MaxPower : 0x32 (100 mA)
Data (HexDump) : 09 02 2E 01 04 01 00 80 32 09 04 00 00 00 01 01 ........2.......
00 00 0A 24 01 00 01 64 00 02 01 02 0C 24 02 01 ...$...d.....$..
01 01 00 02 03 00 00 00 0C 24 02 02 01 02 00 01 .........$......
00 00 00 00 09 24 03 11 01 03 00 31 00 09 24 03 .....$.....1..$.
12 01 01 02 21 00 07 24 05 21 01 32 00 0A 24 06 ....!..$.!.2..$.
31 41 01 01 02 02 00 09 24 06 32 02 01 03 00 00 1A......$.2.....
09 24 06 33 02 01 03 00 00 0D 24 04 41 02 01 33 .$.3......$.A..3
02 03 00 00 00 00 09 04 01 00 00 01 02 00 00 09 ................
04 01 01 01 01 02 00 00 07 24 01 01 01 01 00 0B .........$......
24 02 01 02 02 10 01 80 BB 00 09 05 01 0D C0 00 $...............
01 00 00 07 25 01 01 01 01 00 09 04 02 00 00 01 ....%...........
02 00 00 09 04 02 01 01 01 02 00 00 07 24 01 12 .............$..
01 01 00 11 24 02 01 01 02 10 03 80 BB 00 00 EE ....$...........
02 00 77 01 09 05 82 05 80 01 01 00 00 07 25 01 ..w...........%.
01 00 00 00 09 04 02 02 01 01 02 00 00 07 24 01 ..............$.
12 01 01 00 11 24 02 01 01 03 18 03 80 BB 00 00 .....$..........
EE 02 00 77 01 09 05 82 05 40 02 01 00 00 07 25 ...w.....@.....%
01 01 00 00 00 09 04 03 00 01 03 00 00 00 09 21 ...............!
00 01 00 01 22 3E 00 07 05 83 03 04 00 20 ....">.......
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x00
bAlternateSetting : 0x00
bNumEndpoints : 0x00 (Default Control Pipe only)
bInterfaceClass : 0x01 (Audio)
bInterfaceSubClass : 0x01 (Audio Control)
bInterfaceProtocol : 0x00
iInterface : 0x00 (No String Descriptor)
Data (HexDump) : 09 04 00 00 00 01 01 00 00 .........
------ Audio Control Interface Header Descriptor ------
bLength : 0x0A (10 bytes)
bDescriptorType : 0x24 (Audio Interface Descriptor)
bDescriptorSubtype : 0x01 (Header)
bcdADC : 0x0100
wTotalLength : 0x0064 (100 bytes)
bInCollection : 0x02
baInterfaceNr[1] : 0x01
baInterfaceNr[2] : 0x02
Data (HexDump) : 0A 24 01 00 01 64 00 02 01 02 .$...d....
------- Audio Control Input Terminal Descriptor -------
bLength : 0x0C (12 bytes)
bDescriptorType : 0x24 (Audio Interface Descriptor)
bDescriptorSubtype : 0x02 (Input Terminal)
bTerminalID : 0x01
wTerminalType : 0x0101 (USB streaming)
bAssocTerminal : 0x00
bNrChannels : 0x02 (2 channels)
wChannelConfig : 0x0003 (L, R)
iChannelNames : 0x00 (No String Descriptor)
iTerminal : 0x00 (No String Descriptor)
Data (HexDump) : 0C 24 02 01 01 01 00 02 03 00 00 00 .$..........
------- Audio Control Input Terminal Descriptor -------
bLength : 0x0C (12 bytes)
bDescriptorType : 0x24 (Audio Interface Descriptor)
bDescriptorSubtype : 0x02 (Input Terminal)
bTerminalID : 0x02
wTerminalType : 0x0201 (Microphone)
bAssocTerminal : 0x00
bNrChannels : 0x01 (1 channel)
wChannelConfig : 0x0000 (-)
iChannelNames : 0x00 (No String Descriptor)
iTerminal : 0x00 (No String Descriptor)
Data (HexDump) : 0C 24 02 02 01 02 00 01 00 00 00 00 .$..........
------- Audio Control Output Terminal Descriptor ------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x24 (Audio Interface Descriptor)
bDescriptorSubtype : 0x03 (Output Terminal)
bTerminalID : 0x11
wTerminalType : 0x0301 (Speaker)
bAssocTerminal : 0x00 (0)
bSourceID : 0x31 (49)
iTerminal : 0x00 (No String Descriptor)
Data (HexDump) : 09 24 03 11 01 03 00 31 00 .$.....1.
------- Audio Control Output Terminal Descriptor ------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x24 (Audio Interface Descriptor)
bDescriptorSubtype : 0x03 (Output Terminal)
bTerminalID : 0x12
wTerminalType : 0x0101 (USB streaming)
bAssocTerminal : 0x02 (2)
bSourceID : 0x21 (33)
iTerminal : 0x00 (No String Descriptor)
Data (HexDump) : 09 24 03 12 01 01 02 21 00 .$.....!.
------- Audio Control Selector Unit Descriptor --------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x24 (Audio Interface Descriptor)
bDescriptorSubtype : 0x05 (Selector Unit)
bUnitID : 0x21
bNrInPins : 0x01 (1 pins)
baSourceID[1] : 0x32
iSelector : 0x00 (No String Descriptor)
Data (HexDump) : 07 24 05 21 01 32 00 .$.!.2.
-------- Audio Control Feature Unit Descriptor --------
bLength : 0x0A (10 bytes)
bDescriptorType : 0x24 (Audio Interface Descriptor)
bDescriptorSubtype : 0x06 (Feature Unit)
bUnitID : 0x31 (49)
bSourceID : 0x41 (65)
bControlSize : 0x01 (1 byte per control)
bmaControls[0] : 0x01
D0: Mute : 1
D1: Volume : 0
D2: Bass : 0
D3: Mid : 0
D4: Treble : 0
D5: Graphic Equalizer : 0
D6: Automatic Gain : 0
D7: Delay : 0
bmaControls[1] : 0x02
D0: Mute : 0
D1: Volume : 1
D2: Bass : 0
D3: Mid : 0
D4: Treble : 0
D5: Graphic Equalizer : 0
D6: Automatic Gain : 0
D7: Delay : 0
bmaControls[2] : 0x02
D0: Mute : 0
D1: Volume : 1
D2: Bass : 0
D3: Mid : 0
D4: Treble : 0
D5: Graphic Equalizer : 0
D6: Automatic Gain : 0
D7: Delay : 0
iFeature : 0x00 (No String Descriptor)
Data (HexDump) : 0A 24 06 31 41 01 01 02 02 00 .$.1A.....
-------- Audio Control Feature Unit Descriptor --------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x24 (Audio Interface Descriptor)
bDescriptorSubtype : 0x06 (Feature Unit)
bUnitID : 0x32 (50)
bSourceID : 0x02 (2)
bControlSize : 0x01 (1 byte per control)
bmaControls[0] : 0x03
D0: Mute : 1
D1: Volume : 1
D2: Bass : 0
D3: Mid : 0
D4: Treble : 0
D5: Graphic Equalizer : 0
D6: Automatic Gain : 0
D7: Delay : 0
bmaControls[1] : 0x00
D0: Mute : 0
D1: Volume : 0
D2: Bass : 0
D3: Mid : 0
D4: Treble : 0
D5: Graphic Equalizer : 0
D6: Automatic Gain : 0
D7: Delay : 0
iFeature : 0x00 (No String Descriptor)
Data (HexDump) : 09 24 06 32 02 01 03 00 00 .$.2.....
-------- Audio Control Feature Unit Descriptor --------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x24 (Audio Interface Descriptor)
bDescriptorSubtype : 0x06 (Feature Unit)
bUnitID : 0x33 (51)
bSourceID : 0x02 (2)
bControlSize : 0x01 (1 byte per control)
bmaControls[0] : 0x03
D0: Mute : 1
D1: Volume : 1
D2: Bass : 0
D3: Mid : 0
D4: Treble : 0
D5: Graphic Equalizer : 0
D6: Automatic Gain : 0
D7: Delay : 0
bmaControls[1] : 0x00
D0: Mute : 0
D1: Volume : 0
D2: Bass : 0
D3: Mid : 0
D4: Treble : 0
D5: Graphic Equalizer : 0
D6: Automatic Gain : 0
D7: Delay : 0
iFeature : 0x00 (No String Descriptor)
Data (HexDump) : 09 24 06 33 02 01 03 00 00 .$.3.....
--------- Audio Control Mixer Unit Descriptor ---------
bLength : 0x0D (13 bytes)
bDescriptorType : 0x24 (Audio Interface Descriptor)
bDescriptorSubtype : 0x04 (Mixer Unit)
bUnitID : 0x41
bNrInPins : 0x02 (2 pins)
baSourceID[1] : 0x01
baSourceID[2] : 0x33
bNrChannels : 0x02 (2 channels)
wChannelConfig : 0x0003 (R)
iChannelNames : 0x00 (No String Descriptor)
bmControls (HexDump) : 00 .
iMixer : 0x00 (No String Descriptor)
Data (HexDump) : 0D 24 04 41 02 01 33 02 03 00 00 00 00 .$.A..3......
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x01
bAlternateSetting : 0x00
bNumEndpoints : 0x00 (Default Control Pipe only)
bInterfaceClass : 0x01 (Audio)
bInterfaceSubClass : 0x02 (Audio Streaming)
bInterfaceProtocol : 0x00
iInterface : 0x00 (No String Descriptor)
Data (HexDump) : 09 04 01 00 00 01 02 00 00 .........
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x01
bAlternateSetting : 0x01
bNumEndpoints : 0x01 (1 Endpoint)
bInterfaceClass : 0x01 (Audio)
bInterfaceSubClass : 0x02 (Audio Streaming)
bInterfaceProtocol : 0x00
iInterface : 0x00 (No String Descriptor)
Data (HexDump) : 09 04 01 01 01 01 02 00 00 .........
-------- Audio Streaming Interface Descriptor ---------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x24 (Audio Interface Descriptor)
bDescriptorSubtype : 0x01
bTerminalLink : 0x01
bDelay : 0x01
wFormatTag : 0x0001 (PCM)
Data (HexDump) : 07 24 01 01 01 01 00 .$.....
------- Audio Streaming Format Type Descriptor --------
bLength : 0x0B (11 bytes)
bDescriptorType : 0x24 (Audio Interface Descriptor)
bDescriptorSubtype : 0x02 (Format Type)
bFormatType : 0x01 (FORMAT_TYPE_I)
bNrChannels : 0x02 (2 channels)
bSubframeSize : 0x02 (2 bytes per subframe)
bBitResolution : 0x10 (16 bits per sample)
bSamFreqType : 0x01 (supports 1 sample frequence)
tSamFreq[1] : 0x0BB80 (48000 Hz)
Data (HexDump) : 0B 24 02 01 02 02 10 01 80 BB 00 .$.........
----------------- Endpoint Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x01 (Direction=OUT EndpointID=1)
bmAttributes : 0x0D (TransferType=Isochronous SyncType=Synchronous EndpointType=Data)
wMaxPacketSize : 0x00C0 (192 bytes)
bInterval : 0x01 (1 ms)
bRefresh : 0x00
bSynchAddress : 0x00
Data (HexDump) : 09 05 01 0D C0 00 01 00 00 .........
----------- Audio Data Endpoint Descriptor ------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x25 (Audio Endpoint Descriptor)
bDescriptorSubtype : 0x01 (General)
bmAttributes : 0x01
D0 : Sampling Freq : 0x01 (supported)
D1 : Pitch : 0x00 (not supported)
D6..2: Reserved : 0x00
D7 : MaxPacketsOnly : 0x00 (no)
bLockDelayUnits : 0x01 (Milliseconds)
wLockDelay : 0x0001 (1 ms)
Data (HexDump) : 07 25 01 01 01 01 00 .%.....
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x02
bAlternateSetting : 0x00
bNumEndpoints : 0x00 (Default Control Pipe only)
bInterfaceClass : 0x01 (Audio)
bInterfaceSubClass : 0x02 (Audio Streaming)
bInterfaceProtocol : 0x00
iInterface : 0x00 (No String Descriptor)
Data (HexDump) : 09 04 02 00 00 01 02 00 00 .........
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x02
bAlternateSetting : 0x01
bNumEndpoints : 0x01 (1 Endpoint)
bInterfaceClass : 0x01 (Audio)
bInterfaceSubClass : 0x02 (Audio Streaming)
bInterfaceProtocol : 0x00
iInterface : 0x00 (No String Descriptor)
Data (HexDump) : 09 04 02 01 01 01 02 00 00 .........
-------- Audio Streaming Interface Descriptor ---------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x24 (Audio Interface Descriptor)
bDescriptorSubtype : 0x01
bTerminalLink : 0x12
bDelay : 0x01
wFormatTag : 0x0001 (PCM)
Data (HexDump) : 07 24 01 12 01 01 00 .$.....
------- Audio Streaming Format Type Descriptor --------
bLength : 0x11 (17 bytes)
bDescriptorType : 0x24 (Audio Interface Descriptor)
bDescriptorSubtype : 0x02 (Format Type)
bFormatType : 0x01 (FORMAT_TYPE_I)
bNrChannels : 0x01 (1 channel)
bSubframeSize : 0x02 (2 bytes per subframe)
bBitResolution : 0x10 (16 bits per sample)
bSamFreqType : 0x03 (supports 3 sample frequencies)
tSamFreq[1] : 0x0BB80 (48000 Hz)
tSamFreq[2] : 0x2EE00 (192000 Hz)
tSamFreq[3] : 0x17700 (96000 Hz)
Data (HexDump) : 11 24 02 01 01 02 10 03 80 BB 00 00 EE 02 00 77 .$.............w
01 .
----------------- Endpoint Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x82 (Direction=IN EndpointID=2)
bmAttributes : 0x05 (TransferType=Isochronous SyncType=Asynchronous EndpointType=Data)
wMaxPacketSize : 0x0180 (384 bytes)
bInterval : 0x01 (1 ms)
bRefresh : 0x00
bSynchAddress : 0x00
Data (HexDump) : 09 05 82 05 80 01 01 00 00 .........
----------- Audio Data Endpoint Descriptor ------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x25 (Audio Endpoint Descriptor)
bDescriptorSubtype : 0x01 (General)
bmAttributes : 0x01
D0 : Sampling Freq : 0x01 (supported)
D1 : Pitch : 0x00 (not supported)
D6..2: Reserved : 0x00
D7 : MaxPacketsOnly : 0x00 (no)
bLockDelayUnits : 0x00 (Undefined)
wLockDelay : 0x0000
Data (HexDump) : 07 25 01 01 00 00 00 .%.....
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x02
bAlternateSetting : 0x02
bNumEndpoints : 0x01 (1 Endpoint)
bInterfaceClass : 0x01 (Audio)
bInterfaceSubClass : 0x02 (Audio Streaming)
bInterfaceProtocol : 0x00
iInterface : 0x00 (No String Descriptor)
Data (HexDump) : 09 04 02 02 01 01 02 00 00 .........
-------- Audio Streaming Interface Descriptor ---------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x24 (Audio Interface Descriptor)
bDescriptorSubtype : 0x01
bTerminalLink : 0x12
bDelay : 0x01
wFormatTag : 0x0001 (PCM)
Data (HexDump) : 07 24 01 12 01 01 00 .$.....
------- Audio Streaming Format Type Descriptor --------
bLength : 0x11 (17 bytes)
bDescriptorType : 0x24 (Audio Interface Descriptor)
bDescriptorSubtype : 0x02 (Format Type)
bFormatType : 0x01 (FORMAT_TYPE_I)
bNrChannels : 0x01 (1 channel)
bSubframeSize : 0x03 (3 bytes per subframe)
bBitResolution : 0x18 (24 bits per sample)
bSamFreqType : 0x03 (supports 3 sample frequencies)
tSamFreq[1] : 0x0BB80 (48000 Hz)
tSamFreq[2] : 0x2EE00 (192000 Hz)
tSamFreq[3] : 0x17700 (96000 Hz)
Data (HexDump) : 11 24 02 01 01 03 18 03 80 BB 00 00 EE 02 00 77 .$.............w
01 .
----------------- Endpoint Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x82 (Direction=IN EndpointID=2)
bmAttributes : 0x05 (TransferType=Isochronous SyncType=Asynchronous EndpointType=Data)
wMaxPacketSize : 0x0240 (576 bytes)
bInterval : 0x01 (1 ms)
bRefresh : 0x00
bSynchAddress : 0x00
Data (HexDump) : 09 05 82 05 40 02 01 00 00 ....@....
----------- Audio Data Endpoint Descriptor ------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x25 (Audio Endpoint Descriptor)
bDescriptorSubtype : 0x01 (General)
bmAttributes : 0x01
D0 : Sampling Freq : 0x01 (supported)
D1 : Pitch : 0x00 (not supported)
D6..2: Reserved : 0x00
D7 : MaxPacketsOnly : 0x00 (no)
bLockDelayUnits : 0x00 (Undefined)
wLockDelay : 0x0000
Data (HexDump) : 07 25 01 01 00 00 00 .%.....
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x03
bAlternateSetting : 0x00
bNumEndpoints : 0x01 (1 Endpoint)
bInterfaceClass : 0x03 (HID - Human Interface Device)
bInterfaceSubClass : 0x00 (None)
bInterfaceProtocol : 0x00 (None)
iInterface : 0x00 (No String Descriptor)
Data (HexDump) : 09 04 03 00 01 03 00 00 00 .........
------------------- HID Descriptor --------------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x21 (HID Descriptor)
bcdHID : 0x0100 (HID Version 1.00)
bCountryCode : 0x00 (00 = not localized)
bNumDescriptors : 0x01
Data (HexDump) : 09 21 00 01 00 01 22 3E 00 .!....">.
Descriptor 1:
bDescriptorType : 0x22 (Class=Report)
wDescriptorLength : 0x003E (62 bytes)
Error reading descriptor : ERROR_INVALID_PARAMETER
----------------- Endpoint Descriptor -----------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x83 (Direction=IN EndpointID=3)
bmAttributes : 0x03 (TransferType=Interrupt)
wMaxPacketSize : 0x0004 (4 bytes)
bInterval : 0x20 (32 ms)
Data (HexDump) : 07 05 83 03 04 00 20 ......
-------------------- String Descriptors -------------------
------ String Descriptor 0 ------
bLength : 0x04 (4 bytes)
bDescriptorType : 0x03 (String Descriptor)
Language ID[0] : 0x0409 (English - United States)
Data (HexDump) : 04 03 09 04 ....
------ String Descriptor 1 ------
bLength : 0x3A (58 bytes)
bDescriptorType : 0x03 (String Descriptor)
Language 0x0409 : "USB PnP Audio Device°°°°°°°°" *!*ERROR contains 8 NULL characters
Data (HexDump) : 3A 03 55 00 53 00 42 00 20 00 50 00 6E 00 50 00 :.U.S.B. .P.n.P.
20 00 41 00 75 00 64 00 69 00 6F 00 20 00 44 00 .A.u.d.i.o. .D.
65 00 76 00 69 00 63 00 65 00 00 00 00 00 00 00 e.v.i.c.e.......
00 00 00 00 00 00 00 00 00 00 ..........
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