cyapa_i2c_reg_write_block
error = cyapa_i2c_reg_write_block(cyapa, 0, sizeof(bl_activate),
error = cyapa_i2c_reg_write_block(cyapa, 0, sizeof(bl_deactivate),
error = cyapa_i2c_reg_write_block(cyapa, 0, sizeof(bl_exit), bl_exit);
error = cyapa_i2c_reg_write_block(cyapa, 0, cmd_len + 1, cmd);