I have this cheapie 44x11 programmable LED badge that I am trying to access under Linux.

I *think* its the same as this device ...

https://github.com/Caerbannog/led-mini-board

... but when I connect it to a USB port no /dev/ttyU* or /dev/ttyA* is created.

Output of dmesg ...

usb 2-5: new full-speed USB device number 21 using xhci_hcd
usb 2-5: New USB device found, idVendor=0416, idProduct=5020
usb 2-5: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 2-5: Product: LS32 Custm HID
usb 2-5: Manufacturer: LSicroelectronics
hidraw: raw HID events driver (C) Jiri Kosina
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
input: LSicroelectronics LS32 Custm HID as /devices/pci0000:00/0000:00:14.0/usb2/2-5/2-5:1.0/0003:0416:5020.0001/input/input14
hid-generic 0003:0416:5020.0001: input,hidraw0: USB HID v1.10 Device [LSicroelectronics LS32 Custm HID] on usb-0000:00:14.0-5/input0

... and of lsusb ...

Bus 002 Device 023: ID 0416:5020 Winbond Electronics Corp.

Searching for details on this device returns lean pickings. I did come across this one comment in a discussion thread for a different device ...

https://www.reddit.com/user/k2539/

... with no response.

Any advice about how go forward would be appreciated! Thanks.

(o< .: Per curiositas ad astra .: http://www.circuidipity.com
(/)_