22 #include <linux/input.h> 25 # define BTN_NORTH BTN_X 28 # define BTN_SOUTH BTN_A 31 # define BTN_WEST BTN_Y 34 # define BTN_EAST BTN_B 38 # define BTN_DPAD_UP 0x220 41 # define BTN_DPAD_DOWN 0x221 44 # define BTN_DPAD_LEFT 0x222 46 #ifndef BTN_DPAD_RIGHT 47 # define BTN_DPAD_RIGHT 0x223