µFR Series devices primarily use the FTDI driver for USB communication by default.
FTDI drivers consist of 2 parts: D2XX USB driver and VCOM port driver.
If you want to use these devices via the USB interface directly, install our PC/SC driver for µFR devices. This will allow you to use the µFR device as a regular PC/SC device with a USB interface.
To communicate with Javax cards, you need to know the communication protocol used by this specific card. Use the Javax card documentation for the APDU commands communication.