I bought Asus Vivobook S15 which has a build in finger print reader in touch pad. I have installed Finger Print Gui but it doesn't detect finger print device. I have also checked fprint-demo which also didn't find the device.
How can I find the fingerprint device ID and corresponding driver? No driver listed in additional driver application.
These sensors should be working in the new 1.92 release of libfprint. Not many distributions have incorporated it yet, but you can build it from source, something along the lines of
meson build && ninja -C build installfrom inside that repo.