Original question:
Tool/software:
hi
I recently discovered that there are optimizations for USB in version 10.0, and I would like to ask if there are any optimizations for SDK 8.6. Because when I was debugging USB 2.0, I found that there were frequent communication issues with USB 3.0 on Windows. Windows will display the message (CMPROCB_FAILED-POSTSART).
LCPD-29873 AM62x: host does not detect USB gadget
Sorry about the question about rndis. I am using AM62-sk, sdk8.6 and 10 all have this problem. It feels like there is a problem with the dwc3 layer, because the 0x80000004 that rndis should send is received by the rndis_msg_parser function, causing an error. When testing the windows computer, USB2.0 does not This problem will occur when plugging in USB 3.0, but there will be no problem when plugging in USB 3.0 through the hub.
computer log
=========================== USB Port4 ===========================
Connection Status : 0x02 (Device failed enumeration)
Port Chain : 2-4
Properties : 0x01
IsUserConnectable : yes
PortIsDebugCapable : no
PortHasMultiCompanions : no
PortConnectorIsTypeC : no
ConnectionIndex : 0x04 (Port 4)
CompanionIndex : 0
CompanionHubSymLnk : USB#ROOT_HUB30#4&15fdb2bd&0&0#{f18a0e88-c30c-11d0-8815-00a0c906bed8}
CompanionPortNumber : 0x10 (Port 16)
-> CompanionPortChain : 2-16
Device Manager Problem : 43 (CM_PROB_FAILED_POST_START)
Used Endpoints : 0
======================== USB Device ========================
+++++++++++++++++ Device Information ++++++++++++++++++
Device Description : 未知 USB 设备(设备描述符请求失败)
Device ID : USB\VID_0000&PID_0002\5&2630A0C1&0&4
Hardware IDs : USB\DEVICE_DESCRIPTOR_FAILURE
Driver KeyName : {36fc9e60-c465-11cf-8056-444553540000}\0101 (GUID_DEVCLASS_USB)
Driver Inf : C:\Windows\inf\usb.inf
Legacy BusType : PNPBus
Class : USB
Class GUID : {36fc9e60-c465-11cf-8056-444553540000} (GUID_DEVCLASS_USB)
Enumerator : USB
PDO : \Device\USBPDO-3
Location Info : Port_#0004.Hub_#0002
Manufacturer Info : (标准 USB 主控制器)
Capabilities : 0x64 (Removable, SilentInstall, RawDeviceOK)
Status : 0x01806400 (DN_HAS_PROBLEM, DN_DISABLEABLE, DN_REMOVABLE, DN_NT_ENUMERATOR, DN_NT_DRIVER)
Problem Code : 43 (CM_PROB_FAILED_POST_START)
Address : 4
HcDisableSelectiveSuspend: 0
EnableSelectiveSuspend : 0
SelectiveSuspendEnabled : 0
EnhancedPowerMgmtEnabled : 0
IdleInWorkingState : 0
WakeFromSleepState : 0
Power State : D3 (supported: D0, D3, wake from D0)
---------------- Connection Information ---------------
Connection Index : 0x04 (Port 4)
Connection Status : 0x02 (DeviceFailedEnumeration)
Current Config Value : 0x00 (Configuration 0)
Device Address : 0x00 (0)
Is Hub : 0x00 (no)
Device Bus Speed : 0x02 (High-Speed)
Number Of Open Pipes : 0x00 (0 pipes to data endpoints)
Data (HexDump) : 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 02 00 00 00 00 00 00 00 02 ................
00 00 00 ...
--------------- Connection Information V2 -------------
Connection Index : 0x04 (4)
Length : 0x10 (16 bytes)
SupportedUsbProtocols : 0x03
Usb110 : 1 (yes, port supports USB 1.1)
Usb200 : 1 (yes, port supports USB 2.0)
Usb300 : 0 (no, port not supports USB 3.0) -> but Companion Port 2-16 does
ReservedMBZ : 0x00
Flags : 0x00
DevIsOpAtSsOrHigher : 0 (Device is not operating at SuperSpeed or higher)
DevIsSsCapOrHigher : 0 (Device is not SuperSpeed capable or higher)
DevIsOpAtSsPlusOrHigher : 0 (Device is not operating at SuperSpeedPlus or higher)
DevIsSsPlusCapOrHigher : 0 (Device is not SuperSpeedPlus capable or higher)
ReservedMBZ : 0x00
Data (HexDump) : 04 00 00 00 10 00 00 00 03 00 00 00 00 00 00 00 ................
---------------------- Device Descriptor ----------------------
bLength : 0x00 (0 bytes)
----------------- Device Qualifier Descriptor -----------------
bLength : 0x0A (10 bytes)
bDescriptorType : 0x06 (Device_qualifier Descriptor)
bcdUSB : 0x201 (USB Version 2.01)
bDeviceClass : 0x02 (Communications and CDC Control)
bDeviceSubClass : 0x00
bDeviceProtocol : 0x00 (No class specific protocol required)
bMaxPacketSize0 : 0x40 (64 Bytes)
bNumConfigurations : 0x02 (2 other-speed configurations)
bReserved : 0x00
Data (HexDump) : 0A 06 01 02 02 00 00 40 02 00 .......@..
-------------------- String Descriptors -------------------
String descriptors are not available (because the device has problem code CM_PROB_FAILED_POST_START)
=========================== USB Port3 ===========================
Connection Status : 0x01 (Device is connected)
Port Chain : 2-3-3
========================== Summary =========================
Vendor ID : 0x0525 (PLX Technology, Inc.)
Product ID : 0xA4A2
USB Version : 2.01
Port maximum Speed : High-Speed
Device maximum Speed : High-Speed
Device Connection Speed : High-Speed
Self powered : yes
Demanded Current : 0 mA
Used Endpoints : 4
======================== USB Device ========================
+++++++++++++++++ Device Information ++++++++++++++++++
Friendly Name : USB Ethernet/RNDIS Gadget #3
Device Description : USB Ethernet/RNDIS Gadget
Device Path 1 : \\?\USB#VID_0525&PID_A4A2#6&5fd967a&0&3#{cac88484-7515-4c03-82e6-71a87abac361} (GUID_DEVINTERFACE_NET)
Device Path 2 : \\?\USB#VID_0525&PID_A4A2#6&5fd967a&0&3#{ad498944-762f-11d0-8dcb-00c04fc3358c}\{fade77d9-9df0-4e7c-b74d-0bb366c29c9d} (GUID_NDIS_LAN_CLASS)
Device Path 3 : \\?\USB#VID_0525&PID_A4A2#6&5fd967a&0&3#{a5dcbf10-6530-11d2-901f-00c04fb951ed} (GUID_DEVINTERFACE_USB_DEVICE)
Kernel Name : \Device\USBPDO-11
Device ID : USB\VID_0525&PID_A4A2\6&5FD967A&0&3
Hardware IDs : USB\VID_0525&PID_A4A2&REV_0510 USB\VID_0525&PID_A4A2
Driver KeyName : {4d36e972-e325-11ce-bfc1-08002be10318}\0028 (GUID_DEVCLASS_NET)
Driver : \SystemRoot\System32\drivers\usb8023.sys (Version: 10.0.18362.1 Date: 2019-03-19)
Driver Inf : C:\Windows\inf\oem187.inf
Legacy BusType : PNPBus
Class : Net
Class GUID : {4d36e972-e325-11ce-bfc1-08002be10318} (GUID_DEVCLASS_NET)
Service : USB_RNDIS
Enumerator : USB
Location Info : Port_#0003.Hub_#0004
Location IDs : PCIROOT(0)#PCI(1400)#USBROOT(0)#USB(3)#USB(3), ACPI(_SB_)#ACPI(PC00)#ACPI(XHCI)#ACPI(RHUB)#ACPI(HS03)#USB(3)
Container ID : {2809ab5d-abe3-11ef-8f33-10f60afb8ee2}
Manufacturer Info : Acer Incorporated.
Capabilities : 0x84 (Removable, SurpriseRemovalOK)
Status : 0x0180600A (DN_DRIVER_LOADED, DN_STARTED, DN_DISABLEABLE, DN_REMOVABLE, DN_NT_ENUMERATOR, DN_NT_DRIVER)
Problem Code : 0
HcDisableSelectiveSuspend: 0
EnableSelectiveSuspend : 0
SelectiveSuspendEnabled : 0
EnhancedPowerMgmtEnabled : 0
IdleInWorkingState : 0
WakeFromSleepState : 0
Power State : D0 (supported: D0, D3, wake from D0)
+++++++++++++++++ Registry USB Flags +++++++++++++++++
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\usbflags\0525A4A20510
osvc : REG_BINARY 00 00
---------------- Connection Information ---------------
Connection Index : 0x03 (Port 3)
Connection Status : 0x01 (DeviceConnected)
Current Config Value : 0x02 (Configuration 2)
Device Address : 0x15 (21)
Is Hub : 0x00 (no)
Device Bus Speed : 0x02 (High-Speed)
Number Of Open Pipes : 0x03 (3 pipes to data endpoints)
Pipe[0] : EndpointID=2 Direction=IN ScheduleOffset=0 Type=Interrupt
Pipe[1] : EndpointID=1 Direction=IN ScheduleOffset=0 Type=Bulk
Pipe[2] : EndpointID=1 Direction=OUT ScheduleOffset=0 Type=Bulk
Data (HexDump) : 03 00 00 00 12 01 01 02 02 00 00 40 25 05 A2 A4 ...........@%...
10 05 01 02 00 02 02 02 00 15 00 03 00 00 00 01 ................
00 00 00 07 05 82 03 08 00 09 00 00 00 00 07 05 ................
81 02 00 02 00 00 00 00 00 07 05 01 02 00 02 00 ................
00 00 00 00 ....
--------------- Connection Information V2 -------------
Connection Index : 0x03 (3)
Length : 0x10 (16 bytes)
SupportedUsbProtocols : 0x03
Usb110 : 1 (yes, port supports USB 1.1)
Usb200 : 1 (yes, port supports USB 2.0)
Usb300 : 0 (no, port not supports USB 3.0)
ReservedMBZ : 0x00
Flags : 0x00
DevIsOpAtSsOrHigher : 0 (Device is not operating at SuperSpeed or higher)
DevIsSsCapOrHigher : 0 (Device is not SuperSpeed capable or higher)
DevIsOpAtSsPlusOrHigher : 0 (Device is not operating at SuperSpeedPlus or higher)
DevIsSsPlusCapOrHigher : 0 (Device is not SuperSpeedPlus capable or higher)
ReservedMBZ : 0x00
Data (HexDump) : 03 00 00 00 10 00 00 00 03 00 00 00 00 00 00 00 ................
---------------------- Device Descriptor ----------------------
bLength : 0x12 (18 bytes)
bDescriptorType : 0x01 (Device Descriptor)
bcdUSB : 0x201 (USB Version 2.01)
bDeviceClass : 0x02 (Communications and CDC Control)
bDeviceSubClass : 0x00
bDeviceProtocol : 0x00 (No class specific protocol required)
bMaxPacketSize0 : 0x40 (64 bytes)
idVendor : 0x0525 (PLX Technology, Inc.)
idProduct : 0xA4A2
bcdDevice : 0x0510
iManufacturer : 0x01 (String Descriptor 1)
Language 0x0409 : "Linux 5.10.168-rt83 with dwc3-gadget"
iProduct : 0x02 (String Descriptor 2)
Language 0x0409 : "RNDIS/Ethernet Gadget"
iSerialNumber : 0x00 (No String Descriptor)
bNumConfigurations : 0x02 (2 Configurations)
Data (HexDump) : 12 01 01 02 02 00 00 40 25 05 A2 A4 10 05 01 02 .......@%.......
00 02 ..
------------------ Configuration Descriptor -------------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x02 (Configuration Descriptor)
wTotalLength : 0x004B (75 bytes)
bNumInterfaces : 0x02 (2 Interfaces)
bConfigurationValue : 0x02 (Configuration 2)
iConfiguration : 0x00 (No String Descriptor)
bmAttributes : 0xC0
D7: Reserved, set 1 : 0x01
D6: Self Powered : 0x01 (yes)
D5: Remote Wakeup : 0x00 (no)
D4..0: Reserved, set 0 : 0x00
MaxPower : 0x00 (0 mA)
Data (HexDump) : 09 02 4B 00 02 02 00 C0 00 08 0B 00 02 02 06 00 ..K.............
06 09 04 00 00 01 02 02 FF 04 05 24 00 10 01 05 ...........$....
24 01 00 01 04 24 02 00 05 24 06 00 01 07 05 82 $....$...$......
03 08 00 09 09 04 01 00 02 0A 00 00 05 07 05 81 ................
02 00 02 00 07 05 01 02 00 02 00 ...........
------------------- IAD Descriptor --------------------
bLength : 0x08 (8 bytes)
bDescriptorType : 0x0B
bFirstInterface : 0x00
bInterfaceCount : 0x02
bFunctionClass : 0x02 (Communications and CDC Control)
bFunctionSubClass : 0x06
bFunctionProtocol : 0x00
iFunction : 0x06 (String Descriptor 6)
Language 0x0409 : "RNDIS"
Data (HexDump) : 08 0B 00 02 02 06 00 06 ........
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x00
bAlternateSetting : 0x00
bNumEndpoints : 0x01 (1 Endpoint)
bInterfaceClass : 0x02 (Communications and CDC Control)
bInterfaceSubClass : 0x02 (Abstract Control Model)
bInterfaceProtocol : 0xFF (Vendor-specific)
iInterface : 0x04 (String Descriptor 4)
Language 0x0409 : "RNDIS Communications Control"
Data (HexDump) : 09 04 00 00 01 02 02 FF 04 .........
-------------- CDC Interface Descriptor ---------------
bFunctionLength : 0x05 (5 bytes)
bDescriptorType : 0x24 (Interface)
bDescriptorSubType : 0x00 (Header Functional Descriptor)
bcdCDC : 0x110 (CDC Version 1.10)
Data (HexDump) : 05 24 00 10 01 .$...
-------------- CDC Interface Descriptor ---------------
bFunctionLength : 0x05 (5 bytes)
bDescriptorType : 0x24 (Interface)
bDescriptorSubType : 0x01 (Call Management Functional Descriptor)
bmCapabilities : 0x00
D7..2 : 0x00 (Reserved)
D1 : 0x00 (sends/receives call management information only over the Communication Class interface)
D0 : 0x00 (does not handle call management itself)
bDataInterface : 0x01
Data (HexDump) : 05 24 01 00 01 .$...
-------------- CDC Interface Descriptor ---------------
bFunctionLength : 0x04 (4 bytes)
bDescriptorType : 0x24 (Interface)
bDescriptorSubType : 0x02 (Abstract Control Management Functional Descriptor)
bmCapabilities : 0x00
D7..4 : 0x00 (Reserved)
D3 : 0x00 (not supports the notification Network_Connection)
D2 : 0x00 (not supports the request Send_Break)
D1 : 0x00 (not supports the request combination of Set_Line_Coding, Set_Control_Line_State, Get_Line_Coding, and the notification Serial_State)
D0 : 0x00 (not supports the request combination of Set_Comm_Feature, Clear_Comm_Feature, and Get_Comm_Feature)
Data (HexDump) : 04 24 02 00 .$..
-------------- CDC Interface Descriptor ---------------
bFunctionLength : 0x05 (5 bytes)
bDescriptorType : 0x24 (Interface)
bDescriptorSubType : 0x06 (Union Functional Descriptor)
bControlInterface : 0x00
bSubordinateInterface[0] : 0x01
Data (HexDump) : 05 24 06 00 01 .$...
----------------- Endpoint Descriptor -----------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x82 (Direction=IN EndpointID=2)
bmAttributes : 0x03 (TransferType=Interrupt)
wMaxPacketSize : 0x0008
Bits 15..13 : 0x00 (reserved, must be zero)
Bits 12..11 : 0x00 (0 additional transactions per microframe -> allows 1..1024 bytes per packet)
Bits 10..0 : 0x08 (8 bytes per packet)
bInterval : 0x09 (256 microframes -> 32 ms)
Data (HexDump) : 07 05 82 03 08 00 09 .......
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x01
bAlternateSetting : 0x00
bNumEndpoints : 0x02 (2 Endpoints)
bInterfaceClass : 0x0A (CDC-Data)
bInterfaceSubClass : 0x00
bInterfaceProtocol : 0x00
iInterface : 0x05 (String Descriptor 5)
Language 0x0409 : "RNDIS Ethernet Data"
Data (HexDump) : 09 04 01 00 02 0A 00 00 05 .........
----------------- Endpoint Descriptor -----------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x81 (Direction=IN EndpointID=1)
bmAttributes : 0x02 (TransferType=Bulk)
wMaxPacketSize : 0x0200 (max 512 bytes)
bInterval : 0x00 (never NAKs)
Data (HexDump) : 07 05 81 02 00 02 00 .......
----------------- Endpoint Descriptor -----------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x01 (Direction=OUT EndpointID=1)
bmAttributes : 0x02 (TransferType=Bulk)
wMaxPacketSize : 0x0200 (max 512 bytes)
bInterval : 0x00 (never NAKs)
Data (HexDump) : 07 05 01 02 00 02 00 .......
------------------ Configuration Descriptor -------------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x02 (Configuration Descriptor)
wTotalLength : 0x0058 (88 bytes)
bNumInterfaces : 0x02 (2 Interfaces)
bConfigurationValue : 0x01 (Configuration 1)
iConfiguration : 0x00 (No String Descriptor)
bmAttributes : 0xC0
D7: Reserved, set 1 : 0x01
D6: Self Powered : 0x01 (yes)
D5: Remote Wakeup : 0x00 (no)
D4..0: Reserved, set 0 : 0x00
MaxPower : 0x00 (0 mA)
Data (HexDump) : 09 02 58 00 02 01 00 C0 00 08 0B 00 02 02 06 00 ..X.............
0B 09 04 00 00 01 02 06 00 08 05 24 00 10 01 05 ...........$....
24 06 00 01 0D 24 0F 09 00 00 00 00 EA 05 00 00 $....$..........
00 07 05 82 03 10 00 09 09 04 01 00 00 0A 00 00 ................
00 09 04 01 01 02 0A 00 00 0A 07 05 81 02 00 02 ................
00 07 05 01 02 00 02 00 ........
------------------- IAD Descriptor --------------------
bLength : 0x08 (8 bytes)
bDescriptorType : 0x0B
bFirstInterface : 0x00
bInterfaceCount : 0x02
bFunctionClass : 0x02 (Communications and CDC Control)
bFunctionSubClass : 0x06
bFunctionProtocol : 0x00
iFunction : 0x0B (String Descriptor 11)
Language 0x0409 : "CDC ECM"
Data (HexDump) : 08 0B 00 02 02 06 00 0B ........
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x00
bAlternateSetting : 0x00
bNumEndpoints : 0x01 (1 Endpoint)
bInterfaceClass : 0x02 (Communications and CDC Control)
bInterfaceSubClass : 0x06 (Ethernet Networking Control Model)
bInterfaceProtocol : 0x00 (No class specific protocol required)
iInterface : 0x08 (String Descriptor 8)
Language 0x0409 : "CDC Ethernet Control Model (ECM)"
Data (HexDump) : 09 04 00 00 01 02 06 00 08 .........
-------------- CDC Interface Descriptor ---------------
bFunctionLength : 0x05 (5 bytes)
bDescriptorType : 0x24 (Interface)
bDescriptorSubType : 0x00 (Header Functional Descriptor)
bcdCDC : 0x110 (CDC Version 1.10)
Data (HexDump) : 05 24 00 10 01 .$...
-------------- CDC Interface Descriptor ---------------
bFunctionLength : 0x05 (5 bytes)
bDescriptorType : 0x24 (Interface)
bDescriptorSubType : 0x06 (Union Functional Descriptor)
bControlInterface : 0x00
bSubordinateInterface[0] : 0x01
Data (HexDump) : 05 24 06 00 01 .$...
-------------- CDC Interface Descriptor ---------------
bFunctionLength : 0x0D (13 bytes)
bDescriptorType : 0x24 (Interface)
bDescriptorSubType : 0x0F (Ethernet Networking Functional Descriptor)
Data (HexDump) : 0D 24 0F 09 00 00 00 00 EA 05 00 00 00 .$...........
----------------- Endpoint Descriptor -----------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x82 (Direction=IN EndpointID=2)
bmAttributes : 0x03 (TransferType=Interrupt)
wMaxPacketSize : 0x0010
Bits 15..13 : 0x00 (reserved, must be zero)
Bits 12..11 : 0x00 (0 additional transactions per microframe -> allows 1..1024 bytes per packet)
Bits 10..0 : 0x10 (16 bytes per packet)
bInterval : 0x09 (256 microframes -> 32 ms)
Data (HexDump) : 07 05 82 03 10 00 09 .......
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x01
bAlternateSetting : 0x00
bNumEndpoints : 0x00 (Default Control Pipe only)
bInterfaceClass : 0x0A (CDC-Data)
bInterfaceSubClass : 0x00
bInterfaceProtocol : 0x00
iInterface : 0x00 (No String Descriptor)
Data (HexDump) : 09 04 01 00 00 0A 00 00 00 .........
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x01
bAlternateSetting : 0x01
bNumEndpoints : 0x02 (2 Endpoints)
bInterfaceClass : 0x0A (CDC-Data)
bInterfaceSubClass : 0x00
bInterfaceProtocol : 0x00
iInterface : 0x0A (String Descriptor 10)
Language 0x0409 : "CDC Ethernet Data"
Data (HexDump) : 09 04 01 01 02 0A 00 00 0A .........
----------------- Endpoint Descriptor -----------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x81 (Direction=IN EndpointID=1)
bmAttributes : 0x02 (TransferType=Bulk)
wMaxPacketSize : 0x0200 (max 512 bytes)
bInterval : 0x00 (never NAKs)
Data (HexDump) : 07 05 81 02 00 02 00 .......
----------------- Endpoint Descriptor -----------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x01 (Direction=OUT EndpointID=1)
bmAttributes : 0x02 (TransferType=Bulk)
wMaxPacketSize : 0x0200 (max 512 bytes)
bInterval : 0x00 (never NAKs)
Data (HexDump) : 07 05 01 02 00 02 00 .......
----------------- Device Qualifier Descriptor -----------------
bLength : 0x0A (10 bytes)
bDescriptorType : 0x06 (Device_qualifier Descriptor)
bcdUSB : 0x201 (USB Version 2.01)
bDeviceClass : 0x02 (Communications and CDC Control)
bDeviceSubClass : 0x00
bDeviceProtocol : 0x00 (No class specific protocol required)
bMaxPacketSize0 : 0x40 (64 Bytes)
bNumConfigurations : 0x02 (2 other-speed configurations)
bReserved : 0x00
Data (HexDump) : 0A 06 01 02 02 00 00 40 02 00 .......@..
------------ Other Speed Configuration Descriptor -------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x07 (Other_speed_configuration Descriptor)
wTotalLength : 0x004B (75 bytes)
bNumInterfaces : 0x02 (2 Interfaces)
bConfigurationValue : 0x02 (Configuration 2)
iConfiguration : 0x00 (No String Descriptor)
bmAttributes : 0xC0
D7: Reserved, set 1 : 0x01
D6: Self Powered : 0x01 (yes)
D5: Remote Wakeup : 0x00 (no)
D4..0: Reserved, set 0 : 0x00
MaxPower : 0x00 (0 mA)
Data (HexDump) : 09 07 4B 00 02 02 00 C0 00 08 0B 00 02 02 06 00 ..K.............
06 09 04 00 00 01 02 02 FF 04 05 24 00 10 01 05 ...........$....
24 01 00 01 04 24 02 00 05 24 06 00 01 07 05 82 $....$...$......
03 08 00 20 09 04 01 00 02 0A 00 00 05 07 05 81 ... ............
02 40 00 00 07 05 01 02 40 00 00 .@......@..
------------------- IAD Descriptor --------------------
bLength : 0x08 (8 bytes)
bDescriptorType : 0x0B
bFirstInterface : 0x00
bInterfaceCount : 0x02
bFunctionClass : 0x02 (Communications and CDC Control)
bFunctionSubClass : 0x06
bFunctionProtocol : 0x00
iFunction : 0x06 (String Descriptor 6)
Language 0x0409 : "RNDIS"
Data (HexDump) : 08 0B 00 02 02 06 00 06 ........
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x00
bAlternateSetting : 0x00
bNumEndpoints : 0x01 (1 Endpoint)
bInterfaceClass : 0x02 (Communications and CDC Control)
bInterfaceSubClass : 0x02 (Abstract Control Model)
bInterfaceProtocol : 0xFF (Vendor-specific)
iInterface : 0x04 (String Descriptor 4)
Language 0x0409 : "RNDIS Communications Control"
Data (HexDump) : 09 04 00 00 01 02 02 FF 04 .........
-------------- CDC Interface Descriptor ---------------
bFunctionLength : 0x05 (5 bytes)
bDescriptorType : 0x24 (Interface)
bDescriptorSubType : 0x00 (Header Functional Descriptor)
bcdCDC : 0x110 (CDC Version 1.10)
Data (HexDump) : 05 24 00 10 01 .$...
-------------- CDC Interface Descriptor ---------------
bFunctionLength : 0x05 (5 bytes)
bDescriptorType : 0x24 (Interface)
bDescriptorSubType : 0x01 (Call Management Functional Descriptor)
bmCapabilities : 0x00
D7..2 : 0x00 (Reserved)
D1 : 0x00 (sends/receives call management information only over the Communication Class interface)
D0 : 0x00 (does not handle call management itself)
bDataInterface : 0x01
Data (HexDump) : 05 24 01 00 01 .$...
-------------- CDC Interface Descriptor ---------------
bFunctionLength : 0x04 (4 bytes)
bDescriptorType : 0x24 (Interface)
bDescriptorSubType : 0x02 (Abstract Control Management Functional Descriptor)
bmCapabilities : 0x00
D7..4 : 0x00 (Reserved)
D3 : 0x00 (not supports the notification Network_Connection)
D2 : 0x00 (not supports the request Send_Break)
D1 : 0x00 (not supports the request combination of Set_Line_Coding, Set_Control_Line_State, Get_Line_Coding, and the notification Serial_State)
D0 : 0x00 (not supports the request combination of Set_Comm_Feature, Clear_Comm_Feature, and Get_Comm_Feature)
Data (HexDump) : 04 24 02 00 .$..
-------------- CDC Interface Descriptor ---------------
bFunctionLength : 0x05 (5 bytes)
bDescriptorType : 0x24 (Interface)
bDescriptorSubType : 0x06 (Union Functional Descriptor)
bControlInterface : 0x00
bSubordinateInterface[0] : 0x01
Data (HexDump) : 05 24 06 00 01 .$...
----------------- Endpoint Descriptor -----------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x82 (Direction=IN EndpointID=2)
bmAttributes : 0x03 (TransferType=Interrupt)
wMaxPacketSize : 0x0008
Bits 15..13 : 0x00 (reserved, must be zero)
Bits 12..11 : 0x00 (0 additional transactions per microframe -> allows 1..1024 bytes per packet)
Bits 10..0 : 0x08 (8 bytes per packet)
bInterval : 0x20 (2147483648 microframes -> 4292819813 ms)
Data (HexDump) : 07 05 82 03 08 00 20 ......
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x01
bAlternateSetting : 0x00
bNumEndpoints : 0x02 (2 Endpoints)
bInterfaceClass : 0x0A (CDC-Data)
bInterfaceSubClass : 0x00
bInterfaceProtocol : 0x00
iInterface : 0x05 (String Descriptor 5)
Language 0x0409 : "RNDIS Ethernet Data"
Data (HexDump) : 09 04 01 00 02 0A 00 00 05 .........
----------------- Endpoint Descriptor -----------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x81 (Direction=IN EndpointID=1)
bmAttributes : 0x02 (TransferType=Bulk)
wMaxPacketSize : 0x0040 (max 64 bytes)
bInterval : 0x00 (never NAKs)
Data (HexDump) : 07 05 81 02 40 00 00 ....@..
----------------- Endpoint Descriptor -----------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x01 (Direction=OUT EndpointID=1)
bmAttributes : 0x02 (TransferType=Bulk)
wMaxPacketSize : 0x0040 (max 64 bytes)
bInterval : 0x00 (never NAKs)
Data (HexDump) : 07 05 01 02 40 00 00 ....@..
------------ Other Speed Configuration Descriptor -------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x07 (Other_speed_configuration Descriptor)
wTotalLength : 0x0058 (88 bytes)
bNumInterfaces : 0x02 (2 Interfaces)
bConfigurationValue : 0x01 (Configuration 1)
iConfiguration : 0x00 (No String Descriptor)
bmAttributes : 0xC0
D7: Reserved, set 1 : 0x01
D6: Self Powered : 0x01 (yes)
D5: Remote Wakeup : 0x00 (no)
D4..0: Reserved, set 0 : 0x00
MaxPower : 0x00 (0 mA)
Data (HexDump) : 09 07 58 00 02 01 00 C0 00 08 0B 00 02 02 06 00 ..X.............
0B 09 04 00 00 01 02 06 00 08 05 24 00 10 01 05 ...........$....
24 06 00 01 0D 24 0F 09 00 00 00 00 EA 05 00 00 $....$..........
00 07 05 82 03 10 00 20 09 04 01 00 00 0A 00 00 ....... ........
00 09 04 01 01 02 0A 00 00 0A 07 05 81 02 40 00 ..............@.
00 07 05 01 02 40 00 00 .....@..
------------------- IAD Descriptor --------------------
bLength : 0x08 (8 bytes)
bDescriptorType : 0x0B
bFirstInterface : 0x00
bInterfaceCount : 0x02
bFunctionClass : 0x02 (Communications and CDC Control)
bFunctionSubClass : 0x06
bFunctionProtocol : 0x00
iFunction : 0x0B (String Descriptor 11)
Language 0x0409 : "CDC ECM"
Data (HexDump) : 08 0B 00 02 02 06 00 0B ........
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x00
bAlternateSetting : 0x00
bNumEndpoints : 0x01 (1 Endpoint)
bInterfaceClass : 0x02 (Communications and CDC Control)
bInterfaceSubClass : 0x06 (Ethernet Networking Control Model)
bInterfaceProtocol : 0x00 (No class specific protocol required)
iInterface : 0x08 (String Descriptor 8)
Language 0x0409 : "CDC Ethernet Control Model (ECM)"
Data (HexDump) : 09 04 00 00 01 02 06 00 08 .........
-------------- CDC Interface Descriptor ---------------
bFunctionLength : 0x05 (5 bytes)
bDescriptorType : 0x24 (Interface)
bDescriptorSubType : 0x00 (Header Functional Descriptor)
bcdCDC : 0x110 (CDC Version 1.10)
Data (HexDump) : 05 24 00 10 01 .$...
-------------- CDC Interface Descriptor ---------------
bFunctionLength : 0x05 (5 bytes)
bDescriptorType : 0x24 (Interface)
bDescriptorSubType : 0x06 (Union Functional Descriptor)
bControlInterface : 0x00
bSubordinateInterface[0] : 0x01
Data (HexDump) : 05 24 06 00 01 .$...
-------------- CDC Interface Descriptor ---------------
bFunctionLength : 0x0D (13 bytes)
bDescriptorType : 0x24 (Interface)
bDescriptorSubType : 0x0F (Ethernet Networking Functional Descriptor)
Data (HexDump) : 0D 24 0F 09 00 00 00 00 EA 05 00 00 00 .$...........
----------------- Endpoint Descriptor -----------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x82 (Direction=IN EndpointID=2)
bmAttributes : 0x03 (TransferType=Interrupt)
wMaxPacketSize : 0x0010
Bits 15..13 : 0x00 (reserved, must be zero)
Bits 12..11 : 0x00 (0 additional transactions per microframe -> allows 1..1024 bytes per packet)
Bits 10..0 : 0x10 (16 bytes per packet)
bInterval : 0x20 (2147483648 microframes -> 4292819813 ms)
Data (HexDump) : 07 05 82 03 10 00 20 ......
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x01
bAlternateSetting : 0x00
bNumEndpoints : 0x00 (Default Control Pipe only)
bInterfaceClass : 0x0A (CDC-Data)
bInterfaceSubClass : 0x00
bInterfaceProtocol : 0x00
iInterface : 0x00 (No String Descriptor)
Data (HexDump) : 09 04 01 00 00 0A 00 00 00 .........
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x01
bAlternateSetting : 0x01
bNumEndpoints : 0x02 (2 Endpoints)
bInterfaceClass : 0x0A (CDC-Data)
bInterfaceSubClass : 0x00
bInterfaceProtocol : 0x00
iInterface : 0x0A (String Descriptor 10)
Language 0x0409 : "CDC Ethernet Data"
Data (HexDump) : 09 04 01 01 02 0A 00 00 0A .........
----------------- Endpoint Descriptor -----------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x81 (Direction=IN EndpointID=1)
bmAttributes : 0x02 (TransferType=Bulk)
wMaxPacketSize : 0x0040 (max 64 bytes)
bInterval : 0x00 (never NAKs)
Data (HexDump) : 07 05 81 02 40 00 00 ....@..
----------------- Endpoint Descriptor -----------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x01 (Direction=OUT EndpointID=1)
bmAttributes : 0x02 (TransferType=Bulk)
wMaxPacketSize : 0x0040 (max 64 bytes)
bInterval : 0x00 (never NAKs)
Data (HexDump) : 07 05 01 02 40 00 00 ....@..
---------- Binary Object Store (BOS) Descriptor -----------
bLength : 0x05 (5 bytes)
bDescriptorType : 0x0F (Binary Object Store)
wTotalLength : 0x000C (12 bytes)
bNumDeviceCaps : 0x01
Data (HexDump) : 05 0F 0C 00 01 .....
------------- USB 2.0 Extension Descriptor ------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x10 (Device Capability Descriptor)
bDevCapabilityType : 0x02 (USB 2.0 Extension)
bmAttributes : 0x10E
LPMCapable : 1 (Link Power Management protocol is supported)
BESLAndAlternateHIRD : 1 (BESL & Alternate HIRD definitions are supported)
BaselineBESLValid : 1 (valid)
DeepBESLValid : 0 (not valid)
BaselineBESL : 1 (150 µs)
DeepBESL : 0
Data (HexDump) : 07 10 02 0E 01 00 00 .......
-------------------- 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 : 0x4A (74 bytes)
bDescriptorType : 0x03 (String Descriptor)
Language 0x0409 : "Linux 5.10.168-rt83 with dwc3-gadget"
Data (HexDump) : 4A 03 4C 00 69 00 6E 00 75 00 78 00 20 00 35 00 J.L.i.n.u.x. .5.
2E 00 31 00 30 00 2E 00 31 00 36 00 38 00 2D 00 ..1.0...1.6.8.-.
72 00 74 00 38 00 33 00 20 00 77 00 69 00 74 00 r.t.8.3. .w.i.t.
68 00 20 00 64 00 77 00 63 00 33 00 2D 00 67 00 h. .d.w.c.3.-.g.
61 00 64 00 67 00 65 00 74 00 a.d.g.e.t.
------ String Descriptor 2 ------
bLength : 0x2C (44 bytes)
bDescriptorType : 0x03 (String Descriptor)
Language 0x0409 : "RNDIS/Ethernet Gadget"
Data (HexDump) : 2C 03 52 00 4E 00 44 00 49 00 53 00 2F 00 45 00 ,.R.N.D.I.S./.E.
74 00 68 00 65 00 72 00 6E 00 65 00 74 00 20 00 t.h.e.r.n.e.t. .
47 00 61 00 64 00 67 00 65 00 74 00 G.a.d.g.e.t.
------ String Descriptor 4 ------
bLength : 0x3A (58 bytes)
bDescriptorType : 0x03 (String Descriptor)
Language 0x0409 : "RNDIS Communications Control"
Data (HexDump) : 3A 03 52 00 4E 00 44 00 49 00 53 00 20 00 43 00 :.R.N.D.I.S. .C.
6F 00 6D 00 6D 00 75 00 6E 00 69 00 63 00 61 00 o.m.m.u.n.i.c.a.
74 00 69 00 6F 00 6E 00 73 00 20 00 43 00 6F 00 t.i.o.n.s. .C.o.
6E 00 74 00 72 00 6F 00 6C 00 n.t.r.o.l.
------ String Descriptor 5 ------
bLength : 0x28 (40 bytes)
bDescriptorType : 0x03 (String Descriptor)
Language 0x0409 : "RNDIS Ethernet Data"
Data (HexDump) : 28 03 52 00 4E 00 44 00 49 00 53 00 20 00 45 00 (.R.N.D.I.S. .E.
74 00 68 00 65 00 72 00 6E 00 65 00 74 00 20 00 t.h.e.r.n.e.t. .
44 00 61 00 74 00 61 00 D.a.t.a.
------ String Descriptor 6 ------
bLength : 0x0C (12 bytes)
bDescriptorType : 0x03 (String Descriptor)
Language 0x0409 : "RNDIS"
Data (HexDump) : 0C 03 52 00 4E 00 44 00 49 00 53 00 ..R.N.D.I.S.
------ String Descriptor 8 ------
bLength : 0x42 (66 bytes)
bDescriptorType : 0x03 (String Descriptor)
Language 0x0409 : "CDC Ethernet Control Model (ECM)"
Data (HexDump) : 42 03 43 00 44 00 43 00 20 00 45 00 74 00 68 00 B.C.D.C. .E.t.h.
65 00 72 00 6E 00 65 00 74 00 20 00 43 00 6F 00 e.r.n.e.t. .C.o.
6E 00 74 00 72 00 6F 00 6C 00 20 00 4D 00 6F 00 n.t.r.o.l. .M.o.
64 00 65 00 6C 00 20 00 28 00 45 00 43 00 4D 00 d.e.l. .(.E.C.M.
29 00 ).
------ String Descriptor 10 ------
bLength : 0x24 (36 bytes)
bDescriptorType : 0x03 (String Descriptor)
Language 0x0409 : "CDC Ethernet Data"
Data (HexDump) : 24 03 43 00 44 00 43 00 20 00 45 00 74 00 68 00 $.C.D.C. .E.t.h.
65 00 72 00 6E 00 65 00 74 00 20 00 44 00 61 00 e.r.n.e.t. .D.a.
74 00 61 00 t.a.
------ String Descriptor 11 ------
bLength : 0x10 (16 bytes)
bDescriptorType : 0x03 (String Descriptor)
Language 0x0409 : "CDC ECM"
Data (HexDump) : 10 03 43 00 44 00 43 00 20 00 45 00 43 00 4D 00 ..C.D.C. .E.C.M.
Hi Hao,
Do you mean when attach the AM62x USB port to the PC USB2.0 port, the issue doesn't happen; but if attach to the PC USB3.0 port, it happens?
I don't have a Windows PC to test with, but the kernel message basically means the USB drivers on AM62x doesn't understand the received RNDIS message.
Can you first please try to disable "RNDIS support" in the Ethernet Gadget in kernel menuconfig to see if the issue still happens?
