I have a Waveshare fingerprint scanner that is attached to a USB breakout board containing a CP2102 USB-UART bridge chip. On the Linux kernel, plugging the board in creates a USB serial tty.
Aside from setting up tty properties (eg 19200 baud), can I treat the device like other USB fingerprint sensors supported by libfprint (i.e. use FpiUsbTransfer)? Benjamin Berg says no: > No, you have a UART device in Linux userspace. That is what you need to > talk to from libfprint. Going through USB would just add one layer of > indirection and make HW detection more complicated.
