Tool/software: Linux
Hello,
I'm attempting to use bulk write to a target board through a 8020 usb hub with the following topology:
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/8p, 5000M
|__ Port 1: Dev 5, If 0, Class=Hub, Driver=hub/2p, 5000M # USB 3 part of 8020
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/16p, 480M
|__ Port 1: Dev 14, If 0, Class=Hub, Driver=hub/2p, 480M # USB 2 part of 8020
|__ Port 1: Dev 15, If 0, Class=Vendor Specific Class, Driver=, 480M # target board
|__ Port 2: Dev 16, If 3, Class=Vendor Specific Class, Driver=ftdi_sio, 480M # FTDI
|__ Port 2: Dev 16, If 1, Class=Vendor Specific Class, Driver=ftdi_sio, 480M # FTDI
|__ Port 2: Dev 16, If 2, Class=Vendor Specific Class, Driver=ftdi_sio, 480M # FTDI
|__ Port 2: Dev 16, If 0, Class=Vendor Specific Class, Driver=ftdi_sio, 480M # FTDI
The same operation works if the hub is bypassed.
I've traced the issue to
read(5, "\22\1\0\2\0\0\0@U\t\30x\0\0\1\2\0\1\t\2 \0\1\1\0\300\20\t\4\0\0\2\377\377\377\0\7\5\201\2@\0\0\7\5\1\2@\0\0", 1024) = 50 close(4) = 0 close(3) = 0 ioctl(5, USBDEVFS_CLAIMINTERFACE, 0x9f346b0) = 0 ioctl(5, USBDEVFS_BULK, 0xffbc1d30) = -1 ETIMEDOUT (Connection timed out) # bulk attempt fails
You can find a usbmon log attached.
The system info is:
Linux XPS-15-9560 4.19.0-041900-generic #201810221809 SMP Mon Oct 22 22:11:45 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
Latest libusb release 1.0.22 (w. debugging)
Here is dmesg output:
[ 7718.687335] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=1 [ 7718.687339] usb 1-1.1: SerialNumber: 800508593070 [ 7718.688754] hub 1-1.1:1.0: USB hub found [ 7718.688798] hub 1-1.1:1.0: 2 ports detected [ 7718.975225] usb 1-1.1.1: new high-speed USB device number 17 using xhci_hcd [ 7719.075855] usb 1-1.1.1: config 1 interface 0 altsetting 0 bulk endpoint 0x81 has invalid maxpacket 64 [ 7719.075862] usb 1-1.1.1: config 1 interface 0 altsetting 0 bulk endpoint 0x1 has invalid maxpacket 64 [ 7719.076290] usb 1-1.1.1: New USB device found, idVendor=0955, idProduct=7818, bcdDevice= 0.00 [ 7719.076296] usb 1-1.1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 7719.076300] usb 1-1.1.1: Product: APX [ 7719.076304] usb 1-1.1.1: Manufacturer: NVIDIA Corp. [ 7719.159230] usb 1-1.1.2: new high-speed USB device number 18 using xhci_hcd [ 7719.259916] usb 1-1.1.2: New USB device found, idVendor=0403, idProduct=6011, bcdDevice= 8.00 [ 7719.259923] usb 1-1.1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 7719.259927] usb 1-1.1.2: Product: Quad RS232-HS [ 7719.259931] usb 1-1.1.2: Manufacturer: FTDI [ 7719.266889] ftdi_sio 1-1.1.2:1.0: FTDI USB Serial Device converter detected [ 7719.267021] usb 1-1.1.2: Detected FT4232H [ 7719.267229] usb 1-1.1.2: FTDI USB Serial Device converter now attached to ttyUSB0 [ 7719.267580] ftdi_sio 1-1.1.2:1.1: FTDI USB Serial Device converter detected [ 7719.267653] usb 1-1.1.2: Detected FT4232H [ 7719.267944] usb 1-1.1.2: FTDI USB Serial Device converter now attached to ttyUSB1 [ 7719.268278] ftdi_sio 1-1.1.2:1.2: FTDI USB Serial Device converter detected [ 7719.268355] usb 1-1.1.2: Detected FT4232H [ 7719.268681] usb 1-1.1.2: FTDI USB Serial Device converter now attached to ttyUSB2 [ 7719.269021] ftdi_sio 1-1.1.2:1.3: FTDI USB Serial Device converter detected [ 7719.269100] usb 1-1.1.2: Detected FT4232H [ 7719.269333] usb 1-1.1.2: FTDI USB Serial Device converter now attached to ttyUSB3
I've noticed that dmesg reports "config 1 interface 0 altsetting 0 bulk endpoint 0x81 has invalid maxpacket 64" would this be a driver or hw configuration issue?
Any tips are appreciated.
https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/138/usbmon_2D00_1.7z
