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root@mitysom-am57x:~# lsusb -v
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Bus 001 Device 005: ID 0461:0022 Primax Electronics, Ltd
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Device Descriptor:
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bLength 18
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bDescriptorType 1
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bcdUSB 1.10
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bDeviceClass 0
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bDeviceSubClass 0
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bDeviceProtocol 0
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bMaxPacketSize0 64
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idVendor 0x0461 Primax Electronics, Ltd
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idProduct 0x0022
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bcdDevice 1.00
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iManufacturer 1 NHD
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iProduct 2 Newhaven Display
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iSerial 0
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bNumConfigurations 1
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Configuration Descriptor:
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bLength 9
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bDescriptorType 2
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wTotalLength 0x0022
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bNumInterfaces 1
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bConfigurationValue 1
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iConfiguration 0
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bmAttributes 0xc0
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Self Powered
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MaxPower 100mA
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Interface Descriptor:
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bLength 9
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bDescriptorType 4
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bInterfaceNumber 0
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bAlternateSetting 0
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bNumEndpoints 1
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bInterfaceClass 3 Human Interface Device
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bInterfaceSubClass 1 Boot Interface Subclass
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bInterfaceProtocol 2 Mouse
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iInterface 0
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HID Device Descriptor:
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bLength 9
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bDescriptorType 33
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bcdHID 1.00
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bCountryCode 0 Not supported
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bNumDescriptors 1
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bDescriptorType 34 Report
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wDescriptorLength 52
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Report Descriptors:
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** UNAVAILABLE **
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Endpoint Descriptor:
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bLength 7
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bDescriptorType 5
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bEndpointAddress 0x81 EP 1 IN
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bmAttributes 3
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Transfer Type Interrupt
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Synch Type None
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Usage Type Data
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wMaxPacketSize 0x0008 1x 8 bytes
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bInterval 10
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can't get debug descriptor: Resource temporarily unavailable
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Device Status: 0x0001
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Self Powered
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Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
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Device Descriptor:
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bLength 18
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bDescriptorType 1
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bcdUSB 3.00
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bDeviceClass 9 Hub
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bDeviceSubClass 0
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bDeviceProtocol 3
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bMaxPacketSize0 9
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idVendor 0x1d6b Linux Foundation
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idProduct 0x0003 3.0 root hub
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bcdDevice 4.19
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iManufacturer 3 Linux 4.19.94-g9ce96ed7a5 xhci-hcd
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iProduct 2 xHCI Host Controller
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iSerial 1 xhci-hcd.1.auto
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bNumConfigurations 1
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Configuration Descriptor:
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bLength 9
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bDescriptorType 2
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wTotalLength 0x001f
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bNumInterfaces 1
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bConfigurationValue 1
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iConfiguration 0
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bmAttributes 0xe0
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Self Powered
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Remote Wakeup
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MaxPower 0mA
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Interface Descriptor:
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bLength 9
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bDescriptorType 4
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bInterfaceNumber 0
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bAlternateSetting 0
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bNumEndpoints 1
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bInterfaceClass 9 Hub
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bInterfaceSubClass 0
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bInterfaceProtocol 0 Full speed (or root) hub
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iInterface 0
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Endpoint Descriptor:
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bLength 7
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bDescriptorType 5
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bEndpointAddress 0x81 EP 1 IN
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bmAttributes 3
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Transfer Type Interrupt
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Synch Type None
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Usage Type Data
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wMaxPacketSize 0x0004 1x 4 bytes
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bInterval 12
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bMaxBurst 0
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Hub Descriptor:
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bLength 12
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bDescriptorType 42
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nNbrPorts 1
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wHubCharacteristic 0x0009
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Per-port power switching
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Per-port overcurrent protection
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bPwrOn2PwrGood 10 * 2 milli seconds
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bHubContrCurrent 0 milli Ampere
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bHubDecLat 0.0 micro seconds
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wHubDelay 0 nano seconds
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DeviceRemovable 0x00
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Hub Port Status:
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Port 1: 0000.02a0 5Gbps power Rx.Detect
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Binary Object Store Descriptor:
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bLength 5
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bDescriptorType 15
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wTotalLength 0x000f
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bNumDeviceCaps 1
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SuperSpeed USB Device Capability:
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bLength 10
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bDescriptorType 16
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bDevCapabilityType 3
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bmAttributes 0x02
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Latency Tolerance Messages (LTM) Supported
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wSpeedsSupported 0x0008
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Device can operate at SuperSpeed (5Gbps)
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bFunctionalitySupport 3
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Lowest fully-functional device speed is SuperSpeed (5Gbps)
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bU1DevExitLat 0 micro seconds
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bU2DevExitLat 0 micro seconds
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can't get debug descriptor: Resource temporarily unavailable
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Device Status: 0x0001
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Self Powered
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Bus 001 Device 002: ID 0451:8142 Texas Instruments, Inc. TUSB8041 4-Port Hub
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Device Descriptor:
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bLength 18
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bDescriptorType 1
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bcdUSB 2.10
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bDeviceClass 9 Hub
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bDeviceSubClass 0
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bDeviceProtocol 2 TT per port
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bMaxPacketSize0 64
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idVendor 0x0451 Texas Instruments, Inc.
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idProduct 0x8142 TUSB8041 4-Port Hub
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bcdDevice 1.00
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iManufacturer 0
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iProduct 0
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iSerial 1 6D00005987D0
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bNumConfigurations 1
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Configuration Descriptor:
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bLength 9
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bDescriptorType 2
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wTotalLength 0x0029
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bNumInterfaces 1
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bConfigurationValue 1
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iConfiguration 0
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bmAttributes 0xe0
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Self Powered
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Remote Wakeup
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MaxPower 0mA
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Interface Descriptor:
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bLength 9
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bDescriptorType 4
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bInterfaceNumber 0
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bAlternateSetting 0
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bNumEndpoints 1
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bInterfaceClass 9 Hub
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bInterfaceSubClass 0
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bInterfaceProtocol 1 Single TT
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iInterface 0
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Endpoint Descriptor:
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bLength 7
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bDescriptorType 5
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bEndpointAddress 0x81 EP 1 IN
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bmAttributes 3
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Transfer Type Interrupt
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Synch Type None
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Usage Type Data
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wMaxPacketSize 0x0001 1x 1 bytes
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bInterval 12
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Interface Descriptor:
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bLength 9
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bDescriptorType 4
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bInterfaceNumber 0
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bAlternateSetting 1
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bNumEndpoints 1
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bInterfaceClass 9 Hub
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bInterfaceSubClass 0
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bInterfaceProtocol 2 TT per port
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iInterface 0
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Endpoint Descriptor:
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bLength 7
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bDescriptorType 5
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bEndpointAddress 0x81 EP 1 IN
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bmAttributes 3
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Transfer Type Interrupt
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Synch Type None
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Usage Type Data
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wMaxPacketSize 0x0001 1x 1 bytes
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bInterval 12
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Hub Descriptor:
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bLength 9
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bDescriptorType 41
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nNbrPorts 4
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wHubCharacteristic 0x0009
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Per-port power switching
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Per-port overcurrent protection
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TT think time 8 FS bits
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bPwrOn2PwrGood 50 * 2 milli seconds
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bHubContrCurrent 0 milli Ampere
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DeviceRemovable 0x00
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PortPwrCtrlMask 0xff
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Hub Port Status:
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Port 1: 0000.0100 power
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Port 2: 0000.0103 power enable connect
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Port 3: 0000.0100 power
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Port 4: 0000.0100 power
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Binary Object Store Descriptor:
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bLength 5
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bDescriptorType 15
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wTotalLength 0x002a
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bNumDeviceCaps 3
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USB 2.0 Extension Device Capability:
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bLength 7
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bDescriptorType 16
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bDevCapabilityType 2
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bmAttributes 0x00000006
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BESL Link Power Management (LPM) Supported
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SuperSpeed USB Device Capability:
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bLength 10
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bDescriptorType 16
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bDevCapabilityType 3
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bmAttributes 0x00
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wSpeedsSupported 0x000e
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Device can operate at Full Speed (12Mbps)
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Device can operate at High Speed (480Mbps)
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Device can operate at SuperSpeed (5Gbps)
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bFunctionalitySupport 1
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Lowest fully-functional device speed is Full Speed (12Mbps)
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bU1DevExitLat 10 micro seconds
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bU2DevExitLat 10 micro seconds
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Container ID Device Capability:
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bLength 20
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bDescriptorType 16
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bDevCapabilityType 4
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bReserved 0
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ContainerID {42194002-8a41-1fdf-4117-62fa1f2d0300}
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can't get debug descriptor: Resource temporarily unavailable
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Device Status: 0x0001
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Self Powered
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Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
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Device Descriptor:
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bLength 18
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bDescriptorType 1
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bcdUSB 2.00
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bDeviceClass 9 Hub
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bDeviceSubClass 0
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bDeviceProtocol 1 Single TT
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bMaxPacketSize0 64
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idVendor 0x1d6b Linux Foundation
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idProduct 0x0002 2.0 root hub
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bcdDevice 4.19
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iManufacturer 3 Linux 4.19.94-g9ce96ed7a5 xhci-hcd
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iProduct 2 xHCI Host Controller
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iSerial 1 xhci-hcd.1.auto
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bNumConfigurations 1
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Configuration Descriptor:
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bLength 9
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bDescriptorType 2
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wTotalLength 0x0019
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bNumInterfaces 1
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bConfigurationValue 1
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iConfiguration 0
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bmAttributes 0xe0
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Self Powered
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Remote Wakeup
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MaxPower 0mA
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Interface Descriptor:
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bLength 9
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bDescriptorType 4
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bInterfaceNumber 0
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bAlternateSetting 0
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bNumEndpoints 1
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bInterfaceClass 9 Hub
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bInterfaceSubClass 0
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bInterfaceProtocol 0 Full speed (or root) hub
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iInterface 0
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Endpoint Descriptor:
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bLength 7
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bDescriptorType 5
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bEndpointAddress 0x81 EP 1 IN
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bmAttributes 3
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Transfer Type Interrupt
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Synch Type None
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Usage Type Data
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wMaxPacketSize 0x0004 1x 4 bytes
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bInterval 12
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Hub Descriptor:
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bLength 9
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bDescriptorType 41
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nNbrPorts 1
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wHubCharacteristic 0x0009
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Per-port power switching
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Per-port overcurrent protection
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TT think time 8 FS bits
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bPwrOn2PwrGood 10 * 2 milli seconds
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bHubContrCurrent 0 milli Ampere
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DeviceRemovable 0x00
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PortPwrCtrlMask 0xff
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Hub Port Status:
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Port 1: 0000.0503 highspeed power enable connect
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can't get device qualifier: Resource temporarily unavailable
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can't get debug descriptor: Resource temporarily unavailable
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Device Status: 0x0001
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Self Powered
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