can't get debug descriptor: Input/output error Bus /dev/usb Device /dev/ugen4.2: ID 13fe:4100 Kingston Technology Company Inc. Flash drive Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x13fe Kingston Technology Company Inc. idProduct 0x4100 Flash drive bcdDevice 1.00 iManufacturer 1 iProduct 2 USB DISK 2.0 iSerial 3 ... bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 32 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 200mA 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 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 /dev/usb Device /dev/ugen0.2: ID 045e:0745 Microsoft Corp. Nano Transceiver v1.0 for Bluetooth Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x045e Microsoft Corp. idProduct 0x0745 Nano Transceiver v1.0 for Bluetooth bcdDevice 6.56 iManufacturer 1 Microsoft iProduct 2 Microsoft 2.4GHz Transceiver v8.0 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 84 bNumInterfaces 3 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 1.11 bCountryCode 0 Not supported bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 57 Report Descriptor: (length is 57) Item(Global): Usage Page, data= [ 0x01 ] 1 Generic Desktop Controls Item(Local ): Usage, data= [ 0x06 ] 6 Keyboard Item(Main ): Collection, data= [ 0x01 ] 1 Application Item(Global): Usage Page, data= [ 0x08 ] 8 LEDs Item(Local ): Usage Minimum, data= [ 0x01 ] 1 NumLock Item(Local ): Usage Maximum, data= [ 0x03 ] 3 Scroll Lock Item(Global): Logical Minimum, data= [ 0x00 ] 0 Item(Global): Logical Maximum, data= [ 0x01 ] 1 Item(Global): Report Size, data= [ 0x01 ] 1 Item(Global): Report Count, data= [ 0x03 ] 3 Item(Main ): Output, data= [ 0x02 ] 2 Data Variable Absolute No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Global): Report Count, data= [ 0x05 ] 5 Item(Main ): Output, data= [ 0x01 ] 1 Constant Array Absolute No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Global): Usage Page, data= [ 0x07 ] 7 Keyboard Item(Local ): Usage Minimum, data= [ 0xe0 0x00 ] 224 Control Left Item(Local ): Usage Maximum, data= [ 0xe7 0x00 ] 231 GUI Right Item(Global): Report Count, data= [ 0x08 ] 8 Item(Main ): Input, data= [ 0x02 ] 2 Data Variable Absolute No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Global): Report Size, data= [ 0x08 ] 8 Item(Global): Report Count, data= [ 0x01 ] 1 Item(Main ): Input, data= [ 0x01 ] 1 Constant Array Absolute No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Local ): Usage Minimum, data= [ 0x00 ] 0 No Event Item(Local ): Usage Maximum, data= [ 0x91 0x00 ] 145 LANG 2 (Hanja Conversion, Korea) Item(Global): Logical Maximum, data= [ 0xff 0x00 ] 255 Item(Global): Report Count, data= [ 0x06 ] 6 Item(Main ): Input, data= [ 0x00 ] 0 Data Array Absolute No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Main ): End Collection, data=none 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 4 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 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 295 Report Descriptor: (length is 295) Item(Global): Usage Page, data= [ 0x01 ] 1 Generic Desktop Controls Item(Local ): Usage, data= [ 0x02 ] 2 Mouse Item(Main ): Collection, data= [ 0x01 ] 1 Application Item(Global): Usage Page, data= [ 0x01 ] 1 Generic Desktop Controls Item(Local ): Usage, data= [ 0x02 ] 2 Mouse Item(Main ): Collection, data= [ 0x02 ] 2 Logical Item(Global): Report ID, data= [ 0x1a ] 26 Item(Local ): Usage, data= [ 0x01 ] 1 Pointer Item(Main ): Collection, data= [ 0x00 ] 0 Physical Item(Global): Usage Page, data= [ 0x09 ] 9 Buttons Item(Local ): Usage Minimum, data= [ 0x01 ] 1 Button 1 (Primary) Item(Local ): Usage Maximum, data= [ 0x05 ] 5 Button 5 Item(Global): Report Count, data= [ 0x05 ] 5 Item(Global): Report Size, data= [ 0x01 ] 1 Item(Global): Logical Minimum, data= [ 0x00 ] 0 Item(Global): Logical Maximum, data= [ 0x01 ] 1 Item(Main ): Input, data= [ 0x02 ] 2 Data Variable Absolute No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Global): Report Size, data= [ 0x03 ] 3 Item(Global): Report Count, data= [ 0x01 ] 1 Item(Main ): Input, data= [ 0x01 ] 1 Constant Array Absolute No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Global): Usage Page, data= [ 0x01 ] 1 Generic Desktop Controls Item(Local ): Usage, data= [ 0x30 ] 48 Direction-X Item(Local ): Usage, data= [ 0x31 ] 49 Direction-Y Item(Global): Report Count, data= [ 0x02 ] 2 Item(Global): Report Size, data= [ 0x10 ] 16 Item(Global): Logical Minimum, data= [ 0x01 0x80 ] 32769 Item(Global): Logical Maximum, data= [ 0xff 0x7f ] 32767 Item(Main ): Input, data= [ 0x06 ] 6 Data Variable Relative No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Main ): Collection, data= [ 0x02 ] 2 Logical Item(Global): Report ID, data= [ 0x12 ] 18 Item(Local ): Usage, data= [ 0x48 ] 72 (null) Item(Global): Report Count, data= [ 0x01 ] 1 Item(Global): Report Size, data= [ 0x02 ] 2 Item(Global): Logical Minimum, data= [ 0x00 ] 0 Item(Global): Logical Maximum, data= [ 0x01 ] 1 Item(Global): Physical Minimum, data= [ 0x01 ] 1 Item(Global): Physical Maximum, data= [ 0x10 ] 16 Item(Main ): Feature, data= [ 0x02 ] 2 Data Variable Absolute No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Global): Report ID, data= [ 0x1a ] 26 Item(Local ): Usage, data= [ 0x38 ] 56 Wheel Item(Global): Physical Minimum, data= [ 0x00 ] 0 Item(Global): Physical Maximum, data= [ 0x00 ] 0 Item(Global): Report Count, data= [ 0x01 ] 1 Item(Global): Report Size, data= [ 0x10 ] 16 Item(Global): Logical Minimum, data= [ 0x01 0x80 ] 32769 Item(Global): Logical Maximum, data= [ 0xff 0x7f ] 32767 Item(Main ): Input, data= [ 0x06 ] 6 Data Variable Relative No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Main ): End Collection, data=none Item(Main ): Collection, data= [ 0x02 ] 2 Logical Item(Global): Report ID, data= [ 0x12 ] 18 Item(Local ): Usage, data= [ 0x48 ] 72 (null) Item(Global): Report Size, data= [ 0x02 ] 2 Item(Global): Logical Minimum, data= [ 0x00 ] 0 Item(Global): Logical Maximum, data= [ 0x01 ] 1 Item(Global): Physical Minimum, data= [ 0x01 ] 1 Item(Global): Physical Maximum, data= [ 0x10 ] 16 Item(Main ): Feature, data= [ 0x02 ] 2 Data Variable Absolute No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Global): Physical Minimum, data= [ 0x00 ] 0 Item(Global): Physical Maximum, data= [ 0x00 ] 0 Item(Global): Report Size, data= [ 0x04 ] 4 Item(Main ): Feature, data= [ 0x01 ] 1 Constant Array Absolute No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Global): Report ID, data= [ 0x1a ] 26 Item(Global): Usage Page, data= [ 0x0c ] 12 Consumer Item(Global): Report Count, data= [ 0x01 ] 1 Item(Global): Report Size, data= [ 0x10 ] 16 Item(Global): Logical Minimum, data= [ 0x01 0x80 ] 32769 Item(Global): Logical Maximum, data= [ 0xff 0x7f ] 32767 Item(Local ): Usage, data= [ 0x38 0x02 ] 568 AC Pan Item(Main ): Input, data= [ 0x06 ] 6 Data Variable Relative No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Main ): End Collection, data=none Item(Main ): End Collection, data=none Item(Main ): End Collection, data=none Item(Main ): End Collection, data=none Item(Global): Usage Page, data= [ 0x0c ] 12 Consumer Item(Local ): Usage, data= [ 0x01 ] 1 Consumer Control Item(Main ): Collection, data= [ 0x01 ] 1 Application Item(Global): Usage Page, data= [ 0x01 ] 1 Generic Desktop Controls Item(Local ): Usage, data= [ 0x02 ] 2 Mouse Item(Main ): Collection, data= [ 0x02 ] 2 Logical Item(Global): Report ID, data= [ 0x1f ] 31 Item(Global): Usage Page, data= [ 0x0c ] 12 Consumer Item(Local ): Usage, data= [ 0x38 0x02 ] 568 AC Pan Item(Global): Report Count, data= [ 0x01 ] 1 Item(Global): Report Size, data= [ 0x10 ] 16 Item(Global): Logical Minimum, data= [ 0x01 0x80 ] 32769 Item(Global): Logical Maximum, data= [ 0xff 0x7f ] 32767 Item(Main ): Input, data= [ 0x06 ] 6 Data Variable Relative No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Global): Report ID, data= [ 0x17 ] 23 Item(Global): Usage Page, data= [ 0x00 0xff ] 65280 (null) Item(Local ): Usage, data= [ 0x06 0xff ] 65286 (null) Item(Local ): Usage, data= [ 0x0f 0xff ] 65295 (null) Item(Global): Logical Minimum, data= [ 0x00 ] 0 Item(Global): Logical Maximum, data= [ 0x01 ] 1 Item(Global): Physical Minimum, data= [ 0x01 ] 1 Item(Global): Physical Maximum, data= [ 0x10 ] 16 Item(Global): Report Count, data= [ 0x02 ] 2 Item(Global): Report Size, data= [ 0x02 ] 2 Item(Main ): Feature, data= [ 0x02 ] 2 Data Variable Absolute No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Local ): Usage, data= [ 0x04 0xff ] 65284 (null) Item(Global): Physical Minimum, data= [ 0x00 ] 0 Item(Global): Physical Maximum, data= [ 0x00 ] 0 Item(Global): Report Count, data= [ 0x01 ] 1 Item(Global): Report Size, data= [ 0x01 ] 1 Item(Main ): Feature, data= [ 0x02 ] 2 Data Variable Absolute No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Global): Report Size, data= [ 0x03 ] 3 Item(Main ): Feature, data= [ 0x01 ] 1 Constant Array Absolute No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Main ): End Collection, data=none Item(Global): Report ID, data= [ 0x16 ] 22 Item(Global): Usage Page, data= [ 0x0c ] 12 Consumer Item(Local ): Usage Minimum, data= [ 0x00 ] 0 Unassigned Item(Local ): Usage Maximum, data= [ 0xff 0x03 ] 1023 (null) Item(Global): Report Count, data= [ 0x01 ] 1 Item(Global): Report Size, data= [ 0x10 ] 16 Item(Global): Logical Minimum, data= [ 0x00 ] 0 Item(Global): Logical Maximum, data= [ 0xff 0x03 ] 1023 Item(Main ): Input, data= [ 0x00 ] 0 Data Array Absolute No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Global): Usage Page, data= [ 0x00 0xff ] 65280 (null) Item(Local ): Usage Minimum, data= [ 0x01 0xfd ] 64769 (null) Item(Local ): Usage Maximum, data= [ 0xff 0xfd ] 65023 (null) Item(Global): Logical Minimum, data= [ 0x01 ] 1 Item(Global): Logical Maximum, data= [ 0xff 0x00 ] 255 Item(Global): Report Size, data= [ 0x08 ] 8 Item(Main ): Input, data= [ 0x00 ] 0 Data Array Absolute No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Main ): Input, data= [ 0x01 ] 1 Constant Array Absolute No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Global): Report ID, data= [ 0x1c ] 28 Item(Global): Usage Page, data= [ 0x00 0xff ] 65280 (null) Item(Local ): Usage, data= [ 0x25 0xff ] 65317 (null) Item(Global): Logical Minimum, data= [ 0x00 ] 0 Item(Global): Logical Maximum, data= [ 0x04 ] 4 Item(Global): Report Size, data= [ 0x08 ] 8 Item(Global): Report Count, data= [ 0x01 ] 1 Item(Main ): Input, data= [ 0x02 ] 2 Data Variable Absolute No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Local ): Usage, data= [ 0x26 0xff ] 65318 (null) Item(Global): Report Size, data= [ 0x10 ] 16 Item(Global): Logical Minimum, data= [ 0x00 ] 0 Item(Global): Logical Maximum, data= [ 0xff 0xff 0x00 0x00 ] 65535 Item(Main ): Input, data= [ 0x02 ] 2 Data Variable Absolute No_Wrap Linear Preferred_State No_Null_Position Non_Volatile Bitfield Item(Main ): End Collection, data=none Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x000a 1x 10 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 3 Human Interface Device can't get device qualifier: Input/output error can't get debug descriptor: Input/output error bInterfaceSubClass 0 No Subclass bInterfaceProtocol 0 None iInterface 0 HID Device Descriptor: bLength 9 bDescriptorType 33 bcdHID 1.11 bCountryCode 0 Not supported bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 319 Report Descriptor: (length is -1) Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0020 1x 32 bytes bInterval 1 Device Status: 0x0000 (Bus Powered) Bus /dev/usb Device /dev/ugen0.1: ID 0000:0000 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.00 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 0 Full speed (or root) hub bMaxPacketSize0 64 idVendor 0x0000 idProduct 0x0000 bcdDevice 1.00 iManufacturer 1 Intel iProduct 2 UHCI root HUB iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x40 (Missing must-be-set bit!) Self Powered 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 0x0008 1x 8 bytes bInterval 255 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 2 wHubCharacteristic 0x000a No power switching (usb 1.0) Per-port overcurrent protection bPwrOn2PwrGood 50 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0x00 PortPwrCtrlMask 0x00 Hub Port Status: Port 1: 0000.0103 power enable connect Port 2: 0000.0100 power Device Status: 0x0001 Self Powered Bus /dev/usb Device /dev/ugen2.1: ID 0000:0000 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.00 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 0 Full speed (or root) hub bMaxPacketSize0 64 idVendor 0x0000 idProduct 0x0000 bcdDevice 1.00 iManufacturer 1 Intel iProduct 2 UHCI root HUB iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x40 (Missing must-be-set bit!) Self Powered 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 0x0008 1x 8 bytes bInterval 255 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 2 wHubCharacteristic 0x000a No power switching (usb 1.0) Per-port overcurrent protection bPwrOn2PwrGood 50 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0x00 PortPwrCtrlMask 0x00 Hub Port Status: Port 1: 0000.0100 power Port 2: 0000.0100 power Device Status: 0x0001 Self Powered Bus /dev/usb Device /dev/ugen1.1: ID 0000:0000 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.00 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 0 Full speed (or root) hub bMaxPacketSize0 64 idVendor 0x0000 idProduct 0x0000 bcdDevice 1.00 iManufacturer 1 Intel iProduct 2 UHCI root HUB iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x40 (Missing must-be-set bit!) Self Powered 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 0x0008 1x 8 bytes bInterval 255 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 2 wHubCharacteristic 0x000a No power switching (usb 1.0) Per-port overcurrent protection bPwrOn2PwrGood 50 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0x00 PortPwrCtrlMask 0x00 Hub Port Status: Port 1: 0000.0100 power Port 2: 0000.0100 power Device Status: 0x0001 Self Powered Bus /dev/usb Device /dev/ugen3.1: ID 0000:0000 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.00 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 0 Full speed (or root) hub bMaxPacketSize0 64 idVendor 0x0000 idProduct 0x0000 bcdDevice 1.00 iManufacturer 1 Intel iProduct 2 UHCI root HUB iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x40 (Missing must-be-set bit!) Self Powered 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 bDescrcan't get debug descriptor: Input/output error iptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0008 1x 8 bytes bInterval 255 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 2 wHubCharacteristic 0x000a No power switching (usb 1.0) Per-port overcurrent protection bPwrOn2PwrGood 50 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0x00 PortPwrCtrlMask 0x00 Hub Port Status: Port 1: 0000.0100 power Port 2: 0000.0100 power Device Status: 0x0001 Self Powered Bus /dev/usb Device /dev/ugen4.1: ID 0000:0000 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 1 Single TT bMaxPacketSize0 64 idVendor 0x0000 idProduct 0x0000 bcdDevice 1.00 iManufacturer 1 Intel iProduct 2 EHCI root HUB iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x40 (Missing must-be-set bit!) Self Powered 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 0x0008 1x 8 bytes bInterval 255 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 8 wHubCharacteristic 0x0002 No power switching (usb 1.0) Ganged overcurrent protection TT think time 8 FS bits bPwrOn2PwrGood 200 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0x00 0x00 PortPwrCtrlMask 0x20 0x43 Hub Port Status: Port 1: 0000.0500 highspeed power Port 2: 0000.0500 highspeed power Port 3: 0000.0500 highspeed power Port 4: 0000.0500 highspeed power Port 5: 0000.0500 highspeed power Port 6: 0000.0500 highspeed power Port 7: 0000.0503 highspeed power enable connect Port 8: 0000.0500 highspeed power Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 0 Full speed (or root) hub bMaxPacketSize0 0 bNumConfigurations 0 Device Status: 0x0001 Self Powered