Protocol spec without prior Class and Subclass spec at line 23179 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 3.10 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 3 bMaxPacketSize0 9 idVendor 0x1d6b Linux Foundation idProduct 0x0003 3.0 root hub bcdDevice 5.10 iManufacturer 3 Linux 5.10.0-32-amd64 xhci-hcd iProduct 2 xHCI Host Controller iSerial 1 ... bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 31 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 Unused bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0004 1x 4 bytes bInterval 12 bMaxBurst 0 Hub Descriptor: bLength 128 bDescriptorType 35 nNbrPorts 147 wHubCharacteristic 0xfc37 No power switching (usb 1.0) Compound device No overcurrent protection bPwrOn2PwrGood 127 * 2 milli seconds bHubContrCurrent 0 milli Ampere bHubDecLat 0.0 micro seconds wHubDelay 0 nano seconds DeviceRemovable 0x20 0x9d 0x32 Hub Port Status: Port 1: 0000.02a0 lowspeed Port 2: 0000.02a0 lowspeed Port 3: 0000.02a0 lowspeed Port 4: 0000.02a0 lowspeed Port 5: 0000.02a0 lowspeed Port 6: 0000.02a0 lowspeed Port 7: 0000.02a0 lowspeed Port 8: 0000.02a0 lowspeed Port 9: 0000.02a0 lowspeed Port 10: 0000.02a0 lowspeed Port 11: 0000.02a0 lowspeed Port 12: 0000.02a0 lowspeed Port 13: 0000.02a0 lowspeed Port 14: 0000.02a0 lowspeed Port 15: 0000.02a0 lowspeed Port 16: 0000.02a0 lowspeed Port 17: 0000.02a0 lowspeed Port 18: 0000.02a0 lowspeed Port 19: 0000.02a0 lowspeed Port 20: 0000.02a0 lowspeed Port 21: 0000.02a0 lowspeed Port 22: 0000.02a0 lowspeed Port 23: 0000.02a0 lowspeed Port 24: 0000.02a0 lowspeed Port 25: 0000.02a0 lowspeed Port 26: 0000.02a0 lowspeed Port 27: 0000.02a0 lowspeed Port 28: 0000.02a0 lowspeed Port 29: 0000.02a0 lowspeed Port 30: 0000.02a0 lowspeed Port 31: 0000.02a0 lowspeed Port 32: 0000.02a0 lowspeed Port 33: 0000.02a0 lowspeed Port 34: 0000.02a0 lowspeed Port 35: 0000.02a0 lowspeed Port 36: 0000.02a0 lowspeed Port 37: 0000.02a0 lowspeed Port 38: 0000.02a0 lowspeed Port 39: 0000.02a0 lowspeed Port 40: 0000.02a0 lowspeed Port 41: 0000.02a0 lowspeed Port 42: 0000.02a0 lowspeed Port 43: 0000.02a0 lowspeed Port 44: 0000.02a0 lowspeed Port 45: 0000.02a0 lowspeed Port 46: 0000.02a0 lowspeed Port 47: 0000.02a0 lowspeed Port 48: 0000.02a0 lowspeed Port 49: 0000.02a0 lowspeed Port 50: 0000.02a0 lowspeed Port 51: 0000.02a0 lowspeed Port 52: 0000.02a0 lowspeed Port 53: 0000.02a0 lowspeed Port 54: 0000.02a0 lowspeed Port 55: 0000.02a0 lowspeed Port 56: 0000.02a0 lowspeed Port 57: 0000.02a0 lowspeed Port 58: 0000.02a0 lowspeed Port 59: 0000.02a0 lowspeed Port 60: 0000.02a0 lowspeed Port 61: 0000.02a0 lowspeed Port 62: 0000.02a0 lowspeed Port 63: 0000.02a0 lowspeed Port 64: 0000.02a0 lowspeed Port 65: 0000.02a0 lowspeed Port 66: 000FIXME: alloc bigger buffer for device capability descriptors 0.02a0 lowspeed Port 67: 0000.02a0 lowspeed Port 68: 0000.02a0 lowspeed Port 69: 0000.02a0 lowspeed Port 70: 0000.02a0 lowspeed Port 71: 0000.02a0 lowspeed Port 72: 0000.02a0 lowspeed Port 73: 0000.02a0 lowspeed Port 74: 0000.02a0 lowspeed Port 75: 0000.02a0 lowspeed Port 76: 0000.02a0 lowspeed Port 77: 0000.02a0 lowspeed Port 78: 0000.02a0 lowspeed Port 79: 0000.02a0 lowspeed Port 80: 0000.02a0 lowspeed Port 81: 0000.02a0 lowspeed Port 82: 0000.02a0 lowspeed Port 83: 0000.02a0 lowspeed Port 84: 0000.02a0 lowspeed Port 85: 0000.02a0 lowspeed Port 86: 0000.02a0 lowspeed Port 87: 0000.02a0 lowspeed Port 88: 0000.02a0 lowspeed Port 89: 0000.02a0 lowspeed Port 90: 0000.02a0 lowspeed Port 91: 0000.02a0 lowspeed Port 92: 0000.02a0 lowspeed Port 93: 0000.02a0 lowspeed Port 94: 0000.02a0 lowspeed Port 95: 0000.02a0 lowspeed Port 96: 0000.02a0 lowspeed Port 97: 0000.02a0 lowspeed Port 98: 0000.02a0 lowspeed Port 99: 0000.02a0 lowspeed Port 100: 0000.02a0 lowspeed Port 101: 0000.02a0 lowspeed Port 102: 0000.02a0 lowspeed Port 103: 0000.02a0 lowspeed Port 104: 0000.02a0 lowspeed Port 105: 0000.02a0 lowspeed Port 106: 0000.02a0 lowspeed Port 107: 0000.02a0 lowspeed Port 108: 0000.02a0 lowspeed Port 109: 0000.02a0 lowspeed Port 110: 0000.02a0 lowspeed Port 111: 0000.02a0 lowspeed Port 112: 0000.02a0 lowspeed Port 113: 0000.02a0 lowspeed Port 114: 0000.02a0 lowspeed Port 115: 0000.02a0 lowspeed Port 116: 0000.02a0 lowspeed Port 117: 0000.02a0 lowspeed Port 118: 0000.02a0 lowspeed Port 119: 0000.02a0 lowspeed Port 120: 0000.02a0 lowspeed Port 121: 0000.02a0 lowspeed Port 122: 0000.02a0 lowspeed Port 123: 0000.02a0 lowspeed Port 124: 0000.02a0 lowspeed Port 125: 0000.02a0 lowspeed Port 126: 0000.02a0 lowspeed Port 127: 0000.02a0 lowspeed Port 128: 0000.02a0 lowspeed Port 129: 0000.02a0 lowspeed Port 130: 0000.02a0 lowspeed Port 131: 0000.02a0 lowspeed Port 132: 0000.02a0 lowspeed Port 133: 0000.02a0 lowspeed Port 134: 0000.02a0 lowspeed Port 135: 0000.02a0 lowspeed Port 136: 0000.02a0 lowspeed Port 137: 0000.02a0 lowspeed Port 138: 0000.02a0 lowspeed Port 139: 0000.02a0 lowspeed Port 140: 0000.02a0 lowspeed Port 141: 0000.02a0 lowspeed Port 142: 0000.02a0 lowspeed Port 143: 0000.02a0 lowspeed Port 144: 0000.02a0 lowspeed Port 145: 0000.02a0 lowspeed Port 146: 0000.02a0 lowspeed Port 147: 0000.02a0 lowspeed Binary Object Store Descriptor: bLength 5 bDescriptorType 15 wTotalLength 91 bNumDeviceCaps 2 Device Status: 0x0001 Self Powered Bus 001 Device 003: ID 0bda:0153 Realtek Semiconductor Corp. 3-in-1 (SD/SDHC/SDXC) Card Reader Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x0bda Realtek Semiconductor Corp. idProduct 0x0153 3-in-1 (SD/SDHC/SDXC) Card Reader bcdDevice 57.13 iManufacturer 1 Generic iProduct 2 USB2.0-CRW iSerial 3 ... bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 32 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 4 CARD READER bmAttributes 0x80 (Bus Powered) MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 8 Mass Storage bInterfaceSubClass 6 SCSI bInterfaceProtocol 80 Bulk-Only iInterface 5 Bulk-In, Bulk-Out, Interface Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 bNumConfigurations 1 Device Status: 0x0000 (Bus Powered) Bus 001 Device 002: ID 30fa:0302 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x30fa idProduct 0x0302 bcdDevice 1.00 iManufacturer 1 Instant iProduct 2 USB Optical Mouse iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 34 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xa0 (Bus Powered) Remote Wakeup MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 3 Human Interface Device bInterfaceSubClass 1 Boot Interface Subclass bInterfaceProtocol 2 Mouse iInterface 0 HID Device Descriptor: bLength 9 bDescriptorType 33 bcdHID 1.11 bCountryCode 0 Not supported bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 64 Report Descriptors: ** UNAVAILABLE ** Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0005 1x 5 bytes bInterval 10 Device Status: 0x0000 (Bus Powered) Bus 001 Device 006: ID 8087:0aaa Intel Corp. Bluetooth 9460/9560 Jefferson Peak (JfP) Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 224 Wireless bDeviceSubClass 1 Radio Frequency bDeviceProtocol 1 Bluetooth bMaxPacketSize0 64 idVendor 0x8087 Intel Corp. idProduct 0x0aaa Bluetooth 9460/9560 Jefferson Peak (JfP) bcdDevice 0.02 iManufacturer 0 iProduct 0 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 200 bNumInterfaces 2 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0000 1x 0 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0000 1x 0 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 1 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0009 1x 9 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0009 1x 9 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 2 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0011 1x 17 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0011 1x 17 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 3 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0019 1x 25 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0019 1x 25 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 4 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0021 1x 33 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0021 1x 33 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 5 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0031 1x 49 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0031 1x 49 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 6 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x003f 1x 63 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x003f 1x 63 bytes bInterval 1 Device Status: 0x0001 Self Powered Bus 001 Device 005: ID 0461:4e04 Primax Electronics, Ltd Lenovo Keyboard KB1021 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x0461 Primax Electronics, Ltd idProduct 0x4e04 Lenovo Keyboard KB1021 bcdDevice 1.04 iManufacturer 1 NOVATEK iProduct 2 USB NETVISTA FULL WIDTH KEYBOARD iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 59 bNumInterfaces 2 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xa0 (Bus Powered) Remote Wakeup MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 3 Human Interface Device bInterfaceSubClass 1 Boot Interface Subclass bInterfaceProtocol 1 Keyboard iInterface 0 HID Device Descriptor: bLength 9 bDescriptorType 33 bcdHID 1.10 bCountryCode 0 Not supported bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 65 Report Descriptors: ** UNAVAILABLE ** Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0008 1x 8 bytes bInterval 10 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 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 1.10 bCountryCode 0 Not supported bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 133 Report Descriptors: ** UNAVAILABLE ** Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0008 1x 8 bytes bInterval 10 Device Status: 0x0000 (Bus Powered) Bus 001 Device 004: ID 13fe:5500 Kingston Technology Company Inc. Flash drive Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.10 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x13fe Kingston Technology Company Inc. idProduct 0x5500 Flash drive bcdDevice 1.00 iManufacturer 1 iProduct 2 USB DISK 3.0 iSerial 3 ... bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 32 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 300mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 8 Mass Storage bInterfaceSubClass 6 SCSI bInterfaceProtocol 80 Bulk-Only iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Binary Object Store Descriptor: bLength 5 bDescriptorType 15 wTotalLength 22 bNumDeviceCaps 2 USB 2.0 Extension Device Capability: bLength 7 bDescriptorType 16 bDevCapabilityType 2 bmAttributes 0x00000006 Link Power Management (LPM) Supported SuperSpeed USB Device Capability: bLength 10 bDescriptorType 16 bDevCapabilityType 3 bmAttributes 0x00 wSpeedsSupported 0x000e Device can operate at Full Speed (12Mbps) Device can operate at High Speed (480Mbps) Device can operate at SuperSpeed (5Gbps) bFunctionalitySupport 2 Lowest fully-functional device speed is High Speed (480Mbps) bU1DevExitLat 10 micro seconds bU2DevExitLat 2047 micro seconds Device Status: 0x0000 (Bus Powered) Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 1 Single TT bMaxPacketSize0 64 idVendor 0x1d6b Linux Foundation idProduct 0x0002 2.0 root hub bcdDevice 5.10 iManufacturer 3 Linux 5.10.0-32-amd64 xhci-hcd iProduct 2 xHCI Host Controller iSerial 1 ... bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 Unused bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0004 1x 4 bytes bInterval 12 Hub Descriptor: bLength 13 bDescriptorType 41 nNbrPorts 16 wHubCharacteristic 0x000a No power switching (usb 1.0) Per-port overcurrent protection TT think time 8 FS bits bPwrOn2PwrGood 10 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0x00 0x00 0x00 PortPwrCtrlMask 0xff 0xff 0xff Hub Port Status: Port 1: 0000.0100 power Port 2: 0000.0100 power Port 3: 0000.0100 power Port 4: 0000.0303 lowspeed power enable connect Port 5: 0000.0100 power Port 6: 0000.0100 power Port 7: 0000.0100 power Port 8: 0000.0100 power Port 9: 0000.0503 highspeed power enable connect Port 10: 0000.0523 highspeed power enable connect Port 11: 0000.0303 lowspeed power enable connect Port 12: 0000.0100 power Port 13: 0000.0100 power Port 14: 0000.0103 power enable connect Port 15: 0000.0100 power Port 16: 0000.0100 power Device Status: 0x0001 Self Powered