最終更新:2023-10-17 (火) 10:32:21 (195d)
Pixel USB-C earbuds
Top / Pixel USB-C earbuds
---------------------- Device Descriptor ---------------------- bLength : 0x12 (18 bytes) bDescriptorType : 0x01 (Device Descriptor) bcdUSB : 0x200 (USB Version 2.0) -> but device is Full-Speed only bDeviceClass : 0x00 (defined by the interface descriptors) bDeviceSubClass : 0x00 bDeviceProtocol : 0x00 bMaxPacketSize0 : 0x40 (64 bytes) idVendor : 0x18D1 (Google Inc.) idProduct : 0x5033 bcdDevice : 0x0020 iManufacturer : 0x01 (String Descriptor 1) Language 0x0409 : "Google" iProduct : 0x02 (String Descriptor 2) Language 0x0409 : "Pixel USB-C earbuds" iSerialNumber : 0x03 (String Descriptor 3) Language 0x0409 : "0000000000000000" bNumConfigurations : 0x01 (1 Configuration) Data (HexDump) : 12 01 00 02 00 00 00 40 D1 18 33 50 20 00 01 02 .......@..3P ... 03 01 .. ------------------ Configuration Descriptor ------------------- bLength : 0x09 (9 bytes) bDescriptorType : 0x02 (Configuration Descriptor) wTotalLength : 0x014B (331 bytes) bNumInterfaces : 0x04 (4 Interfaces) bConfigurationValue : 0x01 (Configuration 1) iConfiguration : 0x00 (No String Descriptor) bmAttributes : 0xA0 D7: Reserved, set 1 : 0x01 D6: Self Powered : 0x00 (no) D5: Remote Wakeup : 0x01 (yes) D4..0: Reserved, set 0 : 0x00 MaxPower : 0x0F (30 mA) Data (HexDump) : 09 02 4B 01 04 01 00 A0 0F 09 04 00 00 00 01 01 ..K............. 00 00 0A 24 01 00 01 69 00 02 01 02 0C 24 02 01 ...$...i.....$.. 02 04 06 01 00 00 00 00 08 24 06 02 01 01 03 00 .........$...... 09 24 03 03 01 01 00 02 00 0C 24 02 04 01 01 00 .$........$..... 02 03 00 00 00 0A 24 06 05 0C 01 01 02 02 00 09 ......$......... 24 03 06 02 04 01 05 00 0C 24 02 0A 01 02 00 02 $........$...... 03 00 00 06 0A 24 06 0B 0A 01 03 00 00 00 0D 24 .....$.........$ 04 0C 02 04 0B 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 ..............$. 03 01 01 00 17 24 02 01 01 02 10 05 40 1F 00 80 .....$......@... 3E 00 00 7D 00 44 AC 00 80 BB 00 09 05 81 05 60 >..}.D.........` 00 01 00 00 07 25 01 01 00 00 00 09 04 02 00 00 .....%.......... 01 02 00 00 09 04 02 01 01 01 02 00 00 07 24 01 ..............$. 04 03 01 00 17 24 02 01 02 02 10 05 40 1F 00 80 .....$......@... 3E 00 00 7D 00 44 AC 00 80 BB 00 09 05 01 09 C0 >..}.D.......... 00 01 00 00 07 25 01 01 01 04 00 09 04 02 02 01 .....%.......... 01 02 00 00 07 24 01 04 01 01 00 17 24 02 01 02 .....$......$... 03 18 05 40 1F 00 80 3E 00 00 7D 00 44 AC 00 80 ...@...>..}.D... BB 00 09 05 01 09 20 01 01 00 00 07 25 01 01 01 ...... .....%... 04 00 09 04 03 00 01 03 00 00 00 09 21 11 01 00 ............!... 01 22 33 00 07 05 84 03 23 00 01 ."3.....#.. ---------------- Interface Descriptor ----------------- bLength : 0x09 (9 bytes) bDescriptorType : 0x04 (Interface Descriptor) bInterfaceNumber : 0x00 (Interface 0) 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 : 0x0069 (105 bytes) bInCollection : 0x02 baInterfaceNr[1] : 0x01 baInterfaceNr[2] : 0x02 Data (HexDump) : 0A 24 01 00 01 69 00 02 01 02 .$...i.... ------- Audio Control Input Terminal Descriptor ------- bLength : 0x0C (12 bytes) bDescriptorType : 0x24 (Audio Interface Descriptor) bDescriptorSubtype : 0x02 (Input Terminal) bTerminalID : 0x01 wTerminalType : 0x0402 (Headset) bAssocTerminal : 0x06 bNrChannels : 0x01 (1 channel) wChannelConfig : 0x0000 (-) iChannelNames : 0x00 (No String Descriptor) iTerminal : 0x00 (No String Descriptor) Data (HexDump) : 0C 24 02 01 02 04 06 01 00 00 00 00 .$.......... -------- Audio Control Feature Unit Descriptor -------- bLength : 0x08 (8 bytes) bDescriptorType : 0x24 (Audio Interface Descriptor) bDescriptorSubtype : 0x06 (Feature Unit) bUnitID : 0x02 (2) bSourceID : 0x01 (1) 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 iFeature : 0x00 (No String Descriptor) Data (HexDump) : 08 24 06 02 01 01 03 00 .$...... ------- Audio Control Output Terminal Descriptor ------ bLength : 0x09 (9 bytes) bDescriptorType : 0x24 (Audio Interface Descriptor) bDescriptorSubtype : 0x03 (Output Terminal) bTerminalID : 0x03 wTerminalType : 0x0101 (USB Streaming) bAssocTerminal : 0x00 (0) bSourceID : 0x02 (2) iTerminal : 0x00 (No String Descriptor) Data (HexDump) : 09 24 03 03 01 01 00 02 00 .$....... ------- Audio Control Input Terminal Descriptor ------- bLength : 0x0C (12 bytes) bDescriptorType : 0x24 (Audio Interface Descriptor) bDescriptorSubtype : 0x02 (Input Terminal) bTerminalID : 0x04 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 04 01 01 00 02 03 00 00 00 .$.......... -------- Audio Control Feature Unit Descriptor -------- bLength : 0x0A (10 bytes) bDescriptorType : 0x24 (Audio Interface Descriptor) bDescriptorSubtype : 0x06 (Feature Unit) bUnitID : 0x05 (5) bSourceID : 0x0C (12) bControlSize : 0x01 (1 byte per control) bmaControls[0] : 0x01 D0: Mute : 1 D1: Volume : 0 D2: Bass : 0 D3: Mid : 0 D4: Treble : 0 D5: Graphic Equalizer : 0 D6: Automatic Gain : 0 D7: Delay : 0 bmaControls[1] : 0x02 D0: Mute : 0 D1: Volume : 1 D2: Bass : 0 D3: Mid : 0 D4: Treble : 0 D5: Graphic Equalizer : 0 D6: Automatic Gain : 0 D7: Delay : 0 bmaControls[2] : 0x02 D0: Mute : 0 D1: Volume : 1 D2: Bass : 0 D3: Mid : 0 D4: Treble : 0 D5: Graphic Equalizer : 0 D6: Automatic Gain : 0 D7: Delay : 0 iFeature : 0x00 (No String Descriptor) Data (HexDump) : 0A 24 06 05 0C 01 01 02 02 00 .$........ ------- Audio Control Output Terminal Descriptor ------ bLength : 0x09 (9 bytes) bDescriptorType : 0x24 (Audio Interface Descriptor) bDescriptorSubtype : 0x03 (Output Terminal) bTerminalID : 0x06 wTerminalType : 0x0402 (Headset) bAssocTerminal : 0x01 (1) bSourceID : 0x05 (5) iTerminal : 0x00 (No String Descriptor) Data (HexDump) : 09 24 03 06 02 04 01 05 00 .$....... ------- Audio Control Input Terminal Descriptor ------- bLength : 0x0C (12 bytes) bDescriptorType : 0x24 (Audio Interface Descriptor) bDescriptorSubtype : 0x02 (Input Terminal) bTerminalID : 0x0A wTerminalType : 0x0201 (Microphone) bAssocTerminal : 0x00 bNrChannels : 0x02 (2 channels) wChannelConfig : 0x0003 (L, R) iChannelNames : 0x00 (No String Descriptor) iTerminal : 0x06 (String Descriptor 6) Language 0x0409 : "Sidetone" Data (HexDump) : 0C 24 02 0A 01 02 00 02 03 00 00 06 .$.......... -------- Audio Control Feature Unit Descriptor -------- bLength : 0x0A (10 bytes) bDescriptorType : 0x24 (Audio Interface Descriptor) bDescriptorSubtype : 0x06 (Feature Unit) bUnitID : 0x0B (11) bSourceID : 0x0A (10) 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 bmaControls[2] : 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) : 0A 24 06 0B 0A 01 03 00 00 00 .$........ --------- Audio Control Mixer Unit Descriptor --------- bLength : 0x0D (13 bytes) bDescriptorType : 0x24 (Audio Interface Descriptor) bDescriptorSubtype : 0x04 (Mixer Unit) bUnitID : 0x0C bNrInPins : 0x02 (2 Input Pins) baSourceID[1] : 0x04 (4) baSourceID[2] : 0x0B (11) bNrChannels : 0x02 (2 output channels) wChannelConfig : 0x0003 (L, R) iChannelNames : 0x00 (No String Descriptor) bmControls (HexDump) : 00 . iMixer : 0x00 (No String Descriptor) Data (HexDump) : 0D 24 04 0C 02 04 0B 02 03 00 00 00 00 .$........... ---------------- Interface Descriptor ----------------- bLength : 0x09 (9 bytes) bDescriptorType : 0x04 (Interface Descriptor) bInterfaceNumber : 0x01 (Interface 1) 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 (Interface 1) 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 (AS_GENERAL) bTerminalLink : 0x03 (Terminal ID 3) bDelay : 0x01 (1 frame) wFormatTag : 0x0001 (PCM) Data (HexDump) : 07 24 01 03 01 01 00 .$..... ------- Audio Streaming Format Type Descriptor -------- bLength : 0x17 (23 bytes) bDescriptorType : 0x24 (Audio Interface Descriptor) bDescriptorSubtype : 0x02 (Format Type) bFormatType : 0x01 (FORMAT_TYPE_I) bNrChannels : 0x01 (1 channel) bSubframeSize : 0x02 (2 bytes per subframe) bBitResolution : 0x10 (16 bits per sample) bSamFreqType : 0x05 (supports 5 sample frequencies) tSamFreq[1] : 0x01F40 (8000 Hz) tSamFreq[2] : 0x03E80 (16000 Hz) tSamFreq[3] : 0x07D00 (32000 Hz) tSamFreq[4] : 0x0AC44 (44100 Hz) tSamFreq[5] : 0x0BB80 (48000 Hz) Data (HexDump) : 17 24 02 01 01 02 10 05 40 1F 00 80 3E 00 00 7D .$......@...>..} 00 44 AC 00 80 BB 00 .D..... ----------------- Endpoint Descriptor ----------------- bLength : 0x09 (9 bytes) bDescriptorType : 0x05 (Endpoint Descriptor) bEndpointAddress : 0x81 (Direction=IN EndpointID=1) bmAttributes : 0x05 (TransferType=Isochronous SyncType=Asynchronous EndpointType=Data) wMaxPacketSize : 0x0060 (96 bytes) bInterval : 0x01 (1 ms) bRefresh : 0x00 bSynchAddress : 0x00 Data (HexDump) : 09 05 81 05 60 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 : 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 (Interface 2) 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 (Interface 2) 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 (AS_GENERAL) bTerminalLink : 0x04 (Terminal ID 4) bDelay : 0x03 (3 frames) wFormatTag : 0x0001 (PCM) Data (HexDump) : 07 24 01 04 03 01 00 .$..... ------- Audio Streaming Format Type Descriptor -------- bLength : 0x17 (23 bytes) bDescriptorType : 0x24 (Audio Interface Descriptor) bDescriptorSubtype : 0x02 (Format Type) bFormatType : 0x01 (FORMAT_TYPE_I) bNrChannels : 0x02 (2 channels) bSubframeSize : 0x02 (2 bytes per subframe) bBitResolution : 0x10 (16 bits per sample) bSamFreqType : 0x05 (supports 5 sample frequencies) tSamFreq[1] : 0x01F40 (8000 Hz) tSamFreq[2] : 0x03E80 (16000 Hz) tSamFreq[3] : 0x07D00 (32000 Hz) tSamFreq[4] : 0x0AC44 (44100 Hz) tSamFreq[5] : 0x0BB80 (48000 Hz) Data (HexDump) : 17 24 02 01 02 02 10 05 40 1F 00 80 3E 00 00 7D .$......@...>..} 00 44 AC 00 80 BB 00 .D..... ----------------- Endpoint Descriptor ----------------- bLength : 0x09 (9 bytes) bDescriptorType : 0x05 (Endpoint Descriptor) bEndpointAddress : 0x01 (Direction=OUT EndpointID=1) bmAttributes : 0x09 (TransferType=Isochronous SyncType=Adaptive EndpointType=Data) wMaxPacketSize : 0x00C0 (192 bytes) bInterval : 0x01 (1 ms) bRefresh : 0x00 bSynchAddress : 0x00 Data (HexDump) : 09 05 01 09 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 : 0x0004 (4 ms) Data (HexDump) : 07 25 01 01 01 04 00 .%..... ---------------- Interface Descriptor ----------------- bLength : 0x09 (9 bytes) bDescriptorType : 0x04 (Interface Descriptor) bInterfaceNumber : 0x02 (Interface 2) 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 (AS_GENERAL) bTerminalLink : 0x04 (Terminal ID 4) bDelay : 0x01 (1 frame) wFormatTag : 0x0001 (PCM) Data (HexDump) : 07 24 01 04 01 01 00 .$..... ------- Audio Streaming Format Type Descriptor -------- bLength : 0x17 (23 bytes) bDescriptorType : 0x24 (Audio Interface Descriptor) bDescriptorSubtype : 0x02 (Format Type) bFormatType : 0x01 (FORMAT_TYPE_I) bNrChannels : 0x02 (2 channels) bSubframeSize : 0x03 (3 bytes per subframe) bBitResolution : 0x18 (24 bits per sample) bSamFreqType : 0x05 (supports 5 sample frequencies) tSamFreq[1] : 0x01F40 (8000 Hz) tSamFreq[2] : 0x03E80 (16000 Hz) tSamFreq[3] : 0x07D00 (32000 Hz) tSamFreq[4] : 0x0AC44 (44100 Hz) tSamFreq[5] : 0x0BB80 (48000 Hz) Data (HexDump) : 17 24 02 01 02 03 18 05 40 1F 00 80 3E 00 00 7D .$......@...>..} 00 44 AC 00 80 BB 00 .D..... ----------------- Endpoint Descriptor ----------------- bLength : 0x09 (9 bytes) bDescriptorType : 0x05 (Endpoint Descriptor) bEndpointAddress : 0x01 (Direction=OUT EndpointID=1) bmAttributes : 0x09 (TransferType=Isochronous SyncType=Adaptive EndpointType=Data) wMaxPacketSize : 0x0120 (288 bytes) bInterval : 0x01 (1 ms) bRefresh : 0x00 bSynchAddress : 0x00 Data (HexDump) : 09 05 01 09 20 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 : 0x01 (Milliseconds) wLockDelay : 0x0004 (4 ms) Data (HexDump) : 07 25 01 01 01 04 00 .%..... ---------------- Interface Descriptor ----------------- bLength : 0x09 (9 bytes) bDescriptorType : 0x04 (Interface Descriptor) bInterfaceNumber : 0x03 (Interface 3) 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 : 0x0111 (HID Version 1.11) bCountryCode : 0x00 (00 = not localized) bNumDescriptors : 0x01 Data (HexDump) : 09 21 11 01 00 01 22 33 00 .!...."3. Descriptor 1: bDescriptorType : 0x22 (Class=Report) wDescriptorLength : 0x0033 (51 bytes) Error reading descriptor : ERROR_INVALID_PARAMETER (due to a obscure limitation of the Win32 USB API, see UsbTreeView.txt) ----------------- Endpoint Descriptor ----------------- bLength : 0x07 (7 bytes) bDescriptorType : 0x05 (Endpoint Descriptor) bEndpointAddress : 0x84 (Direction=IN EndpointID=4) bmAttributes : 0x03 (TransferType=Interrupt) wMaxPacketSize : 0x0023 (35 bytes) bInterval : 0x01 (1 ms) Data (HexDump) : 07 05 84 03 23 00 01 ....#.. ----------------- Device Qualifier Descriptor ----------------- Error : ERROR_GEN_FAILURE (because the device is Full-Speed only) -------------------- 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 : 0x0E (14 bytes) bDescriptorType : 0x03 (String Descriptor) Language 0x0409 : "Google" Data (HexDump) : 0E 03 47 00 6F 00 6F 00 67 00 6C 00 65 00 ..G.o.o.g.l.e. ------ String Descriptor 2 ------ bLength : 0x28 (40 bytes) bDescriptorType : 0x03 (String Descriptor) Language 0x0409 : "Pixel USB-C earbuds" Data (HexDump) : 28 03 50 00 69 00 78 00 65 00 6C 00 20 00 55 00 (.P.i.x.e.l. .U. 53 00 42 00 2D 00 43 00 20 00 65 00 61 00 72 00 S.B.-.C. .e.a.r. 62 00 75 00 64 00 73 00 b.u.d.s. ------ String Descriptor 3 ------ bLength : 0x22 (34 bytes) bDescriptorType : 0x03 (String Descriptor) Language 0x0409 : "0000000000000000" 8. ------ String Descriptor 6 ------ bLength : 0x12 (18 bytes) bDescriptorType : 0x03 (String Descriptor) Language 0x0409 : "Sidetone" Data (HexDump) : 12 03 53 00 69 00 64 00 65 00 74 00 6F 00 6E 00 ..S.i.d.e.t.o.n. 65 00 e.