Mass Storage mode not working on SpeedyBee F405 Wing

[tomaskir]

Greetings, I have issues getting msc to work with INAV.

FC and INAV:

• SpeedyBee F405 Wing
• SD card inserted in the FC
• INAV 7.1

Machines tested on:

• Desktop Machine running Linux (Manjar rolling)
• Laptop running Windows 10

Steps I am taking:

• connect USB cable to FC
• connect with Configurator (successful), and run msc

After the FC reboots, on the Windows laptop I simply get in Device Manager:
Unknown USB Device (Device Descriptor Request Failed)

On Linux, here are the dmesg logs:

[1419553.263467] usb 1-2: new full-speed USB device number 31 using xhci_hcd
[1419553.483507] usb 1-2: device descriptor read/64, error -71
[1419553.960463] usb 1-2: New USB device found, idVendor=0483, idProduct=5720, bcdDevice= 2.00
[1419553.960477] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[1419553.960484] usb 1-2: Product: Mass Storage in FS Mode
[1419553.960491] usb 1-2: Manufacturer: STMicroelectronics
[1419553.960497] usb 1-2: SerialNumber: FFFFFFFEFFFF
[1419559.057962] usb 1-2: can't set config #1, error -110

Things I have tried:

• tested multiple different USB ports on the desktop
• 1 USB2 A port, 1 USB3 A port, 1 USB3 C port. All show same issue.
• tested with and without battery connected, same issue

After some discussion on Discord, also tested with:

sudo echo "Y" > /sys/module/usbcore/parameters/use_both_schemes
sudo echo "Y" > /sys/module/usbcore/parameters/old_scheme_first

This results in a slightly different log in dmesg, but the issue persists:

[1426011.862913] usb 1-2: new full-speed USB device number 47 using xhci_hcd
[1426011.889739] usb 1-2: Device not responding to setup address.
[1426012.123072] usb 1-2: Device not responding to setup address.
[1426012.329611] usb 1-2: device not accepting address 47, error -71
[1426012.519578] usb 1-2: new full-speed USB device number 48 using xhci_hcd
[1426012.705198] usb 1-2: New USB device found, idVendor=0483, idProduct=5720, bcdDevice= 2.00
[1426012.705210] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[1426012.705216] usb 1-2: Product: Mass Storage in FS Mode
[1426012.705221] usb 1-2: Manufacturer: STMicroelectronics
[1426012.705225] usb 1-2: SerialNumber: FFFFFFFEFFFF
[1426017.747738] usb 1-2: can't set config #1, error -110