#define AGAVO_ADDRESS (0x74<<1)
#define AGAVO_REGISTER_STATUS 0x0
#define AGAVO_REGISTER_CAP_RED 0x6
#define AGAVO_REGISTER_DATA_RED_LOW 0x40
#define AGAVO_REGISTER_INT_RED_LOW 0xA
#define AGAVO_REGISTER_STATUS_GSSR 0x1

extern uint8_t agavo_initiate_check_status();
extern uint8_t agavo_set_caps(uint8_t cap_red,
			      uint8_t cap_green,
			      uint8_t cap_blue,
			      uint8_t cap_clear);

extern uint8_t agavo_initiate_sensor_grab();

extern uint8_t agavo_set_ints(uint16_t int_red,
			      uint16_t int_green,
			      uint16_t int_blue,
			      uint16_t int_clear);

extern uint8_t agavo_initiate_sensor_integral();
void agavo_extract_values(uint16_t sensor_vals[4]);