Hi!
Yes, both under Windows and Linux.
The port reports itself as a joystick:
Feb 22 11:49:41 oli-ubuntu2 kernel: [6131345.090326] usb 2-1.3: new high-speed USB device number 18 using ehci-pci
Feb 22 11:49:41 oli-ubuntu2 kernel: [6131345.197635] usb 2-1.3: New USB device found, idVendor=1b3f, idProduct=9487
Feb 22 11:49:41 oli-ubuntu2 kernel: [6131345.197641] usb 2-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Feb 22 11:49:41 oli-ubuntu2 kernel: [6131345.197645] usb 2-1.3: Product: GENERAL - JoyStic
Feb 22 11:49:41 oli-ubuntu2 kernel: [6131345.197649] usb 2-1.3: Manufacturer: GENERAL
Feb 22 11:49:51 oli-ubuntu2 kernel: [6131355.206437] hid-generic 0003:1B3F:9487.00BB: timeout initializing reports
Feb 22 11:49:51 oli-ubuntu2 kernel: [6131355.206703] hid-generic 0003:1B3F:9487.00BB: hiddev0,hidraw2: USB HID v1.11 Device [GENERAL GENERAL - JoyStic] on usb-0000:00:1d.0-1.3/input0
Feb 22 11:49:51 oli-ubuntu2 mtp-probe: checking bus 2, device 18: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3"
Feb 22 11:49:51 oli-ubuntu2 mtp-probe: bus: 2, device: 18 was not an MTP device
lsusb:
Bus 002 Device 018: ID 1b3f:9487 Generalplus Technology Inc.
With on-board means and without specially written software, no communication is possible.
At least it was not possible for me.
The USB port is "for internal use only" - presumably the boot loader can be written via it. The manual for the HP2560C now also says: for firmware updates.
I'm pretty sure that you can't access the data on the SD card via this port. As often as I have expressed this wish, Ecowitt would have implemented this useful function long ago.
In any case, this is a function that I would like to see in the future successor model. If you think so too, please express your wish to Ecowitt.
Oliver