Never mind, @Alexander. I managed to find out myself. As it may be
useful to others, I will explain how it's done. I created a small bash
script, e.g. cougar_keyboard.sh, with the following contents:
#!/bin/bash
sudo su -c 'echo -n "1-13:1.2" > /sys/bus/usb/drivers/usbhid/unbind'
sudo su -c 'echo
@Alexander: This is by far the best solution that I found so far. I
followed your steps, and managed to attach the whole device (the 3
interfaces) to the aziokbd driver. However, by doing so, the main keys
also do not work. How did you attach only the third interface to the
aziokbd driver, and
