HT16K33_MATRIX_KEYPAD_MAX_COLS
u16 new_state[HT16K33_MATRIX_KEYPAD_MAX_COLS];
__le16 data[HT16K33_MATRIX_KEYPAD_MAX_COLS];
u32 cols = HT16K33_MATRIX_KEYPAD_MAX_COLS;
cols > HT16K33_MATRIX_KEYPAD_MAX_COLS) {
uint16_t last_key_state[HT16K33_MATRIX_KEYPAD_MAX_COLS];