Wow, I managed to find the problem. Ludovic, you were actually pointing to the 
right thing to check:
$ ldd /usr/lib/pcsc/drivers/ifd-ccid.bundle/Contents/Linux/libccid.so
        linux-vdso.so.1 =>  (0x00007fff5e54f000)
        libusb-1.0.so.0 => /usr/local/lib/libusb-1.0.so.0 (0x00007fbee743d000)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 
(0x00007fbee721e000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fbee6e3e000)
        librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007fbee6c36000)
        /lib64/ld-linux-x86-64.so.2 (0x00007fbee7867000)


For some reason I had a libusb installed to "/usr/local" which was taking 
precedence over the standard lubusb installation. I removed the local library 
and things work fine now.

Thank you!

** Changed in: pcsc-lite (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1745690

Title:
  pcscd cannot load a usb device. Error with libccid.so: undefined
  symbol: libusb_handle_events_completed

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