Use custom built libfprint to add fixes for specific drivers

libfprint-custom-build.txt

# Clone fprintd source code
git clone https://gitlab.freedesktop.org/libfprint/libfprint.git

# Checkout to our good guy who made a patch for sensor 
# 1c7a:0587 LighTuning Technology Inc. ETU905A88-E
git fetch "https://gitlab.freedesktop.org/thameruddin/libfprint.git" 'egismoc-0587'
git checkout -b 'libfprint-egismoc-0587' FETCH_HEAD

# Try building the code
cd libfprint
sudo meson builddir
sudo meson install -C builddir

# Above command will install everything to /usr/local/ 
sudo apt install fprintd fprintd-pam

### IMPORTANT
### Try not to install the libfprint via apt, if the above debs are not being installed without this, either install and 
### purge later or create a symbolic link to our custom build libfprint.so (Feel free to ask if you need help with this)

For your information, ETU905A88-E driver is now implemented on libfprint v.1.94.8 as u can see here 👍 https://gitlab.freedesktop.org/libfprint/libfprint/-/releases

I still can't get it to work on Pop_Os, with the commands from above. I have exactly the ETU905A88-E sensor.

What i do : sudo apt remove fprintd libpam-fprintd sudo apt purge --auto-remove fprintd libfprint-2-2 git clone https://gitlab.freedesktop.org/libfprint/libfprint.git cd libfprint sudo meson setup builddir (or sudo meson builddir ?) sudo meson install -C builddir sudo apt install fprintd libpam-fprintd

and during fprintd-enroll either my finger is not detected, or it is, and afterwards during verify its not detected... any help? thank you very much

I don't know POP'OS.
I think you must install the libfprint v.1.94.8 driver and install it, it should work...

I am on Debian. My fingerprint reader is VFS491 (138a:003d). This is not the same reader as here but i am trying to do something like people here are. Someone already did this: https://github.com/ludwhe/libfprint/. I think he just forked some drivers for my Fingerprint reader and then just updated libfprint version? I don’t know much about this and would be really happy if someone could assist me.

For your information, ETU905A88-E driver is now implemented on libfprint v.1.94.8 as u can see here 👍 https://gitlab.freedesktop.org/libfprint/libfprint/-/releases

Could somebody explain why the same device model (ETU905A88-E) is being reported by lsusb with different hex numbers (i.e. 1c7a:0583, 1c7a:0584, 1c7a:0587) and how does it matter?

As @Doudoube mentions, the driver does seem to be implemented, but the release notes only mention "egismoc: New PIDs 0x0583, 0x0586, 0x0587" while my sensor is showing 0584 and, consequently, is not being recognized by fprintd.service.

I was having issues installing the compiled library to /usr/local with the original commands. For me, I had to first run: sudo apt purge --auto-remove fprintd libfprint-2-2 To remove the old library.

Then install with: sudo ninja -C builddir install

Then I also was getting an error when trying to run "sudo apt install fprintd fprintd-pam" So instead, I had to install: sudo apt install libpam-fprintd

Finally, fprintd-enroll worked, and the fingerprint option in 24.04 Gnome settings came back too.

(I have an Asus Vivobook Pro 16 OLED which has a LighTuning Technology Inc. ETU905A88-E fingerprint reader (ID 1c7a:0587) the updated libfprint library helped get it finally working!)

Worked for me with ASUS Zenbook D14 UX3402