Plug the remote control USBC power connector to your computer and press the power button, after some seconds you should see:

[14396.083402] usb 3-5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[14396.083404] usb 3-5: Product: C5
[14396.083406] usb 3-5: Manufacturer: DJI
[14396.083407] usb 3-5: SerialNumber: 1WPBJ7V006048C
[14396.119995] cdc_acm 3-5:1.2: ttyACM0: USB ACM device
[14396.120310] cdc_acm 3-5:1.4: ttyACM1: USB ACM device
[14396.120325] usbcore: registered new interface driver cdc_acm
[14396.120327] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters