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TUSB8020B-Q1: USB Hub is not being detected.

Sudarshan Chaudhary
Prodigy 60 points
Part Number: TUSB8020B-Q1
Other Parts Discussed in Thread: TUSB8020B, TUSB8020BEVM

Tool/software:

Hello,

We are using USB Hub of TI, P/N: TUSB8020BIPHPQ1, interfaced to the USB Host controller of Xilinx Zynq Ultrascale+ MPSoC.

We are using petalinux version 2023.1 for loading the u-boot and linux kernel onto the system. The u-boot version is "U-Boot 2023.01" and linux version is "Linux version 6.1.0-xilinx-v2023.1".

Now, a Fingerprint scanned (USB 2.0) is connected to one of 2 ports of this USB Hub. This fingerprint scanner device gets detected on u-boot after power up when checked using "usb info" command. After u-boot when linux kernel is loaded then Fingerprint scanner device is not detected on linux nor on u-boot after soft reboot. It gets detected back on u-boot only after hard reset or next power up cycle.

Whereas, if we remove the USB Hub and connect Fingerprint device directly to MPSoC then it gets detected always.

We wish to know what is the cause of this misbehaving of USB Hub. We have also attached the schematic of USB Hub (TUSB8020BIPHPQ1) for your reference.

With regard,

Sudarshan Chaudhary

  • 0
    TI__Guru*** 146315 points

    Hi Sudarshan 

        Did  crystal oscillating? Did TUSB8020B detected in Linux system?

       I didn't see major issue in schematic.

    Best

    Brian

  • 0 in reply to Brian Zhou
    Prodigy 60 points

    Hello Brian,

    Yes, the crystal is oscillating and providing 24MHz to USB hub (TUSB8020BIPHPQ1). 

    TUSB8020BIPHPQ1 is being detected at Uboot but as the system boots further, the following message appears and then TUSB8020B is neither being detected on boot nor on soft reboot. The device gets detected on next power on/off cycle i.e. Hard reboot'

    [    3.378478] usb 3-1: new high-speed USB device number 2 using xhci-hcd

    [    3.533757] usb 3-1: New USB device found, idVendor=0451, idProduct=8027, bcdDevice= 1.10

    [    3.546788] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=1

    [    3.553921] usb 3-1: SerialNumber: 4A030841F165

    [    3.661331] usb 4-1: new SuperSpeed USB device number 2 using xhci-hcd

    [    3.685529] usb 4-1: New USB device found, idVendor=0451, idProduct=8025, bcdDevice= 1.10

    [    3.693707] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0

    [   16.770999] usb 3-1: USB disconnect, device number 2

    [   16.772070] usb usb3-port1: couldn't allocate usb_device

    [   16.777517] usb 4-1: USB disconnect, device number 2

    Please help us in troubleshooting this issue.

    With regard,

    Sudarshan Chaudhary

  • 0 in reply to Sudarshan Chaudhary
    TI__Guru*** 146315 points

    HI Sudarshan : 

       Do you have USB protocol analyzer?

    Best

    Brian

  • 0 in reply to Brian Zhou
    Prodigy 60 points

    Hello Brian,

    No, we don't have USB protocol analyzer.

  • 0 in reply to Sudarshan Chaudhary
    TI__Guru*** 146315 points

    Do you have TUSB8020BEVM to try to see if your board issue or not?

    I do find out you need to add AC cap on SSTX pin not on SSRX pin for TUSB8020B, but this is USB3 signal.

    Regards

    Brian

  • 0 in reply to Brian Zhou
    Prodigy 60 points

    Hello Brian,

    Do we need to send some I2C command before trying to detect it on USB interface ? In Datasheet, "8.5.1.6 Device Configuration Register" states about U1 U2 enable/disable bit. I have tried disabling it. But no change and detection doesn't happen. 

    I am able to access USB_Hub over I2C but not on USB.

    With regard,

    Sudarshan Chaudhary

  • 0 in reply to Sudarshan Chaudhary
    TI__Guru*** 146315 points

    you can control internal register in SBMUS mode (SMBUSz is L) with i2C contorller, just make sure to clear bit 0 in F8 register.

    Best

    Brian

  • 0 in reply to Brian Zhou
    Prodigy 60 points

    Hello Brian,

    Yes, I had tried by clearing Bit '0' in F8 register but USB hub is still not detected. How can I proceed further to get it detected over USB.

    With Regard,

    Sudarshan Chaudhary

  • 0 in reply to Sudarshan Chaudhary
    TI__Guru*** 146315 points

    Can you take  waveform of 3.3v/1.1v/GRStz signal?

    Regards

    Brian

  • 0 in reply to Brian Zhou
    Prodigy 60 points

    Hello Brian,

    At U-Boot of Zynq MPSoC, USB hub gets detected at USB3.0 and USB2.0 with following logs. As you can observe in following log that instead of USB2.0, Hub USB Revision is detected as USB 2.10. Whereas, our USB PHY device (USB3330E-GL-TR) supports USB2.0. Is this mismatch between USB Versions responsible for this problem ?

    2: Hub, USB Revision 3.0
    - Class: Hub
    - PacketSize: 512 Configurations: 1
    - Vendor: 0x0451 Product 0x8025 Version 1.16
    Configuration: 1
    - Interfaces: 1 Self Powered Remote Wakeup 0mA
    Interface: 0
    - Alternate Setting 0, Endpoints: 1
    - Class Hub
    - Endpoint 1 In Interrupt MaxPacket 2 Interval 8ms

    3: Hub, USB Revision 2.10
    - 4A030871F165
    - Class: Hub
    - PacketSize: 64 Configurations: 1
    - Vendor: 0x0451 Product 0x8027 Version 1.16
    Configuration: 1
    - Interfaces: 1 Self Powered Remote Wakeup 0mA
    Interface: 0
    - Alternate Setting 0, Endpoints: 1
    - Class Hub
    - Endpoint 1 In Interrupt MaxPacket 1 Interval 12ms
    - Endpoint 1 In Interrupt MaxPacket 1 Interval 12ms



    With regard,

    Sudarshan Chaudhary

  • 0 in reply to Sudarshan Chaudhary
    TI__Guru*** 146315 points

    I can see hub got detected for both USB2 and USB3 hub in Uboot, lInux version looks not very old, Did customer try other Linux version?

    Regadrs

    Brian

  • 0 in reply to Brian Zhou
    Prodigy 60 points

    Hi Brian,

    Yes USB hub is getting detected on u-boot for both USB2 & USB3 but shows version as 2.1 and 3.0 respectively. Also after booting up on linux the hub is getting listed when checked with "lsusb" it shows both product IDs as on u-boot but as soon as we give the command "lsusb -v" or any device is connected to the DN2 high speed port the XHCI controller is getting a timeout error and gives following print-

    Bus 003 Device 002: ID 0451:8027 Texas Instruments, Inc.
    lsus[ 71.025653] xhci-hcd xhci-hcd.2.auto: xHCI host controller not responding, assume dead
    [ 71.033576] xhci-hcd xhci-hcd.2.auto: HC died; cleaning up
    Couldn't open device, some information will be missing

    After this if lsusb command is run then none of the USB HUB is being displayed

    Log of "lsusb" command after boot up- 

    lsusb
    Bus 004 Device 002: ID 0451:8025 Texas Instruments, Inc.
    Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Bus 003 Device 002: ID 0451:8027 Texas Instruments, Inc.
    Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Bus 001 Device 002: ID 090c:1000 Silicon Motion, Inc. - Taiwan (formerly Feiya Technology Corp.) Flash Drive
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

    Log for "lsusb -v" command:

    lsusb -v

    Bus 004 Device 002: ID 0451:8025 Texas Instruments, Inc.
    Device Descriptor:
    bLength 18
    bDescriptorType 1
    bcdUSB 3.00
    bDeviceClass 9 Hub
    bDeviceSubClass 0
    bDeviceProtocol 3
    bMaxPacketSize0 9
    idVendor 0x0451 Texas Instruments, Inc.
    idProduct 0x8025
    bcdDevice 1.10
    iManufacturer 0
    iProduct 0
    iSerial 0
    bNumConfigurations 1
    Configuration Descriptor:
    bLength 9
    bDescriptorType 2
    wTotalLength 0x001f
    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
    bInterfaceProtocol 0 Full speed (or root) hub
    iInterface 0
    Endpoint Descriptor:
    bLength 7
    bDescriptorType 5
    bEndpointAddress 0x81 EP 1 IN
    bmAttributes 19
    Transfer Type Interrupt
    Synch Type None
    Usage Type Feedback
    wMaxPacketSize 0x0002 1x 2 bytes
    bInterval 8
    bMaxBurst 0
    Hub Descriptor:
    bLength 12
    bDescriptorType 42
    nNbrPorts 2
    wHubCharacteristic 0x0009
    Per-port power switching
    Per-port overcurrent protection
    bPwrOn2PwrGood 50 * 2 milli seconds
    bHubContrCurrent 0 milli Ampere
    bHubDecLat 0.3 micro seconds
    wHubDelay 3203 nano seconds
    DeviceRemovable 0x00
    Hub Port Status:
    Port 1: 0000.06a0 Unknown Speed power Rx.Detect
    Port 2: 0000.06a0 Unknown Speed power Rx.Detect
    Binary Object Store Descriptor:
    bLength 5
    bDescriptorType 15
    wTotalLength 0x002a
    bNumDeviceCaps 3
    USB 2.0 Extension Device Capability:
    bLength 7
    bDescriptorType 16
    bDevCapabilityType 2
    bmAttributes 0x00000006
    BESL 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 1
    Lowest fully-functional device speed is Full Speed (12Mbps)
    bU1DevExitLat 10 micro seconds
    bU2DevExitLat 2047 micro seconds
    Container ID Device Capability:
    bLength 20
    bDescriptorType 16
    bDevCapabilityType 4
    bReserved 0
    ContainerID {e5218002-5e00-fc15-d316-4065282d0300}
    Device Status: 0x000d
    Self Powered
    U1 Enabled
    U2 Enabled

    Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Device Descriptor:
    bLength 18
    bDescriptorType 1
    bcdUSB 3.00
    bDeviceClass 9 Hub
    bDeviceSubClass 0
    bDeviceProtocol 3
    bMaxPacketSize0 9
    idVendor 0x1d6b Linux Foundation
    idProduct 0x0003 3.0 root hub
    bcdDevice 6.01
    iManufacturer 3 Linux 6.1.0-xilinx-v2023.1 xhci-hcd
    iProduct 2 xHCI Host Controller
    iSerial 1 xhci-hcd.2.auto
    bNumConfigurations 1
    Configuration Descriptor:
    bLength 9
    bDescriptorType 2
    wTotalLength 0x001f
    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
    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 12
    bDescriptorType 42
    nNbrPorts 1
    wHubCharacteristic 0x000a
    No power switching (usb 1.0)
    Per-port overcurrent protection
    bPwrOn2PwrGood 50 * 2 milli seconds
    bHubContrCurrent 0 milli Ampere
    bHubDecLat 0.0 micro seconds
    wHubDelay 0 nano seconds
    DeviceRemovable 0x00
    Hub Port Status:
    Port 1: 0000.0263 5Gbps power suspend enable connect
    Binary Object Store Descriptor:
    bLength 5
    bDescriptorType 15
    wTotalLength 0x000f
    bNumDeviceCaps 1
    SuperSpeed USB Device Capability:
    bLength 10
    bDescriptorType 16
    bDevCapabilityType 3
    bmAttributes 0x00
    wSpeedsSupported 0x0008
    Device can operate at SuperSpeed (5Gbps)
    bFunctionalitySupport 1
    Lowest fully-functional device speed is Full Speed (12Mbps)
    bU1DevExitLat 10 micro seconds
    bU2DevExitLat 2047 micro seconds
    Device Status: 0x0001
    Self Powered

    Bus 003 Device 002: ID 0451:8027 Texas Instruments, Inc.
    lsus[ 71.025653] xhci-hcd xhci-hcd.2.auto: xHCI host controller not responding, assume dead
    [ 71.033576] xhci-hcd xhci-hcd.2.auto: HC died; cleaning up
    Couldn't open device, some information will be missing
    Device Descriptor:
    bLength 18
    bDescriptorType 1
    bcdUSB 2.10
    bDeviceClass 9 Hub
    bDeviceSubClass 0
    bDeviceProtocol 2 TT per port
    bMaxPacketSize0 64
    idVendor 0x0451 Texas Instruments, Inc.
    idProduct 0x8027
    bcdDevice 1.10
    iManufacturer 0
    iProduct 0
    iSerial 1 4A030871F165
    bNumConfigurations 1
    Configuration Descriptor:
    bLength 9
    bDescriptorType 2
    wTotalLength 0x0029
    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
    bInterfaceProtocol 1 Single TT
    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 0x0001 1x 1 bytes
    bInterval 12
    Interface Descriptor:
    bLength 9
    bDescriptorType 4
    bInterfaceNumber 0
    bAlternateSetting 1
    bNumEndpoints 1
    bInterfaceClass 9 Hub
    bInterfaceSubClass 0
    bInterfaceProtocol 2 TT per port
    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 0x0001 1x 1 bytes
    bInterval 12

    Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Couldn't open device, some information will be missing
    Device Descriptor:
    bLength 18
    bDescriptorType 1
    bcdUSB 2.00
    bDeviceClass 9 Hub
    bDeviceSubClass 0
    bDeviceProtocol 1 Single TT
    bMaxPacketSize0 64
    idVendor 0x1d6b Linux Foundation
    idProduct 0x0002 2.0 root hub
    bcdDevice 6.01
    iManufacturer 3 Linux 6.1.0-xilinx-v2023.1 xhci-hcd
    iProduct 2 xHCI Host Controller
    iSerial 1 xhci-hcd.2.auto
    bNumConfigurations 1
    Configuration Descriptor:
    bLength 9
    bDescriptorType 2
    wTotalLength 0x0019
    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
    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

    Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Device Descriptor:
    bLength 18
    bDescriptorType 1
    bcdUSB 3.00
    bDeviceClass 9 Hub
    bDeviceSubClass 0
    bDeviceProtocol 3
    bMaxPacketSize0 9
    idVendor 0x1d6b Linux Foundation
    idProduct 0x0003 3.0 root hub
    bcdDevice 6.01
    iManufacturer 3 Linux 6.1.0-xilinx-v2023.1 xhci-hcdb
    iProduct 2 xHCI Host Controller
    iSerial 1 xhci-hcd.1.auto
    bNumConfigurations 1
    Configuration Descriptor:
    bLength 9
    bDescriptorType 2
    wTotalLength 0x001f
    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
    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 12
    bDescriptorType 42
    nNbrPorts 1
    wHubCharacteristic 0x000a
    No power switching (usb 1.0)
    Per-port overcurrent protection
    bPwrOn2PwrGood 50 * 2 milli seconds
    bHubContrCurrent 0 milli Ampere
    bHubDecLat 0.0 micro seconds
    wHubDelay 0 nano seconds
    DeviceRemovable 0x00
    Hub Port Status:
    Port 1: 0000.02a0 5Gbps power Rx.Detect
    Binary Object Store Descriptor:
    bLength 5
    bDescriptorType 15
    wTotalLength 0x000f
    bNumDeviceCaps 1
    SuperSpeed USB Device Capability:
    bLength 10
    bDescriptorType 16
    bDevCapabilityType 3
    bmAttributes 0x00
    wSpeedsSupported 0x0008
    Device can operate at SuperSpeed (5Gbps)
    bFunctionalitySupport 1
    Lowest fully-functional device speed is Full Speed (12Mbps)
    bU1DevExitLat 0 micro seconds
    bU2DevExitLat 0 micro seconds
    Device Status: 0x0001
    Self Powered

    Bus 001 Device 002: ID 090c:1000 Silicon Motion, Inc. - Taiwan (formerly Feiya Technology Corp.) Flash Drive
    Device Descriptor:
    bLength 18
    bDescriptorType 1
    bcdUSB 2.00
    bDeviceClass 0
    bDeviceSubClass 0
    bDeviceProtocol 0
    bMaxPacketSize0 64
    idVendor 0x090c Silicon Motion, Inc. - Taiwan (formerly Feiya Technology Corp.)
    idProduct 0x1000 Flash Drive
    bcdDevice 11.00
    iManufacturer 1 SMI Corporation
    iProduct 2 USB DISK
    iSerial 0
    bNumConfigurations 1
    Configuration Descriptor:
    bLength 9
    bDescriptorType 2
    wTotalLength 0x0020
    bNumInterfaces 1
    bConfigurationValue 1
    iConfiguration 0
    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 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 255
    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 255
    Device Qualifier (for other device speed):
    bLength 10
    bDescriptorType 6
    bcdUSB 2.00
    bDeviceClass 0
    bDeviceSubClass 0
    bDeviceProtocol 0
    bMaxPacketSize0 64
    bNumConfigurations 1
    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
    bDeviceProtocol 1 Single TT
    bMaxPacketSize0 64
    idVendor 0x1d6b Linux Foundation
    idProduct 0x0002 2.0 root hub
    bcdDevice 6.01
    iManufacturer 3 Linux 6.1.0-xilinx-v2023.1 xhci-hcd
    iProduct 2 xHCI Host Controller
    iSerial 1 xhci-hcd.1.auto
    bNumConfigurations 1
    Configuration Descriptor:
    bLength 9
    bDescriptorType 2
    wTotalLength 0x0019
    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
    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 9
    bDescriptorType 41
    nNbrPorts 1
    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
    PortPwrCtrlMask 0xff
    Hub Port Status:
    Port 1: 0000.0503 highspeed power enable connect
    Device Status: 0x0001
    Self Powered

    Log for "lsusb" command after lsusb -v :

    lsusb
    Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Bus 001 Device 002: ID 090c:1000 Silicon Motion, Inc. - Taiwan (formerly Feiya Technology Corp.) Flash Drive
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

    Can that revision number 2.1 showing on the hub be the issue as the zynq mpsoc controller supports USB 2.0 & USB 3.0 configs?

    Regards,

    Sudarshan

  • 0 in reply to Sudarshan Chaudhary
    TI__Guru*** 146315 points

    Hi Sudarshan:

       It more like Linux driver issue, Can we have a call with customer?

    Best

    Brian

  • 0 in reply to Brian Zhou
    Prodigy 60 points

    Hello Brian,

    Yes sure, we can have a call. Let me know your preferred time & meeting details in my email : c0147@cdot.in or you can share them here.

    With regard,

    Sudarshan Chaudhary

  • 0 in reply to Sudarshan Chaudhary
    Prodigy 60 points

    Hello Brian,

    Awaiting your response for the call.

    With regard,

    Sudarshan Chaudhary

  • 0 in reply to Sudarshan Chaudhary
    TI__Guru*** 146315 points

    Sorry, I can't find this ticket  since the system changed from HSSC to USB.

    Best

    Brian