/* sort -k2,2 */
FF_RUMBLE       0x50
FF_PERIODIC     0x51
FF_CONSTANT     0x52
FF_SPRING       0x53
FF_FRICTION     0x54
FF_DAMPER       0x55
FF_INERTIA      0x56
FF_RAMP         0x57
FF_SQUARE       0x58
FF_TRIANGLE     0x59
FF_SINE         0x5a
FF_SAW_UP       0x5b
FF_SAW_DOWN     0x5c
FF_CUSTOM       0x5d
FF_GAIN         0x60
FF_AUTOCENTER   0x61