Future Technology Devices International Ltd. provides a driver for their USB-to-Serial chips specific for MacOS 10.9 and above.
When I first connect a device with such a chip, I can see the additional devices in /dev, for example tty.usbserial-A92XHN3R and cu.usbserial-A92XHN3R. Apparently, MacOS (10.12.6 in my case) provides a driver out of the box.
After installing the vendor provided driver (and rebooting), nothing changes on first sight. I still see the two additional devices when I connect an FTDI adapter to a USB port.
But there is at least one change: libusb works with a PN532 breakout board connected to the Mac via an FTDI adapter. Before installing the driver, I got an error, even though the adapter seemed to work fine.
After this long preamble comes the question: What exactly are the benefits of the vendor provided driver? Does it have additional functionality over the Apple provided driver? Less bugs?