And an other thing - might be of interest. People were looking for the possible keykodes of the sidebuttons beside the screen of tx2z.
The buttons do not give a sign under xev, but if You use the remote control thingy, the middle "wave" formed button gives the following keykode:
KeyRelease event, serial 33, synthetic NO, window 0x3200001,
root 0x9d, subw 0x0, time 1296358, (358,203), root:(368,300),
state 0x4, keycode 37 (keysym 0xffe3, Control_L), same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False