How can I make the Luckfox Pico operate as a USB device using Bulk transfer?

2024-10-13 16:34

I am trying to make the Luckfox Pico Max receive Bulk transfer commands from the USB host, execute the commands, and return the results to the USB host via Bulk transfer.
There is an option called NTB in /etc/init.d/S50usbdevice, and I am planning to test using this.

However, after changing NTB_EN=on in /etc/init.d/S50usbdevice and rebooting, the following error occurs:

Code: Select all

udc ffb00000.usb: failed to start rockchip: -19

I am wondering what the cause of this issue is.
If anyone has experience solving this problem or can share useful references, I would appreciate it.
Additionally, it would be very helpful if someone could provide detailed instructions on how to operate the Luckfox Pico as a USB device using Bulk transfer.

2024-10-15 6:50

cocoa wrote: ↑2024-10-13 16:34 I am trying to make the Luckfox Pico Max receive Bulk transfer commands from the USB host, execute the commands, and return the results to the USB host via Bulk transfer.
There is an option called NTB in /etc/init.d/S50usbdevice, and I am planning to test using this.

However, after changing NTB_EN=on in /etc/init.d/S50usbdevice and rebooting, the following error occurs:
Code: Select all
udc ffb00000.usb: failed to start rockchip: -19
I am wondering what the cause of this issue is.
If anyone has experience solving this problem or can share useful references, I would appreciate it.
Additionally, it would be very helpful if someone could provide detailed instructions on how to operate the Luckfox Pico as a USB device using Bulk transfer.

I'm sorry we don't have a study on this.