Hi, I would like to become familiar with RMI4 driver in the recent linux kernel but I couldn't find a reference manual to RMI4 specification. On the net I found an old version without the f12 feature. Follow path: drivers/input/rmi4/rmi_driver.c contains link http://www.synaptics.com/sites/default/files/511-000136-01-Rev-E-RMI4-Interfacing-Guide.pdf returns 404 -- Pozdrawiam, Kamil Duljas