#define RETU_REG_RTCHMAR 0x05 /* RTC hours and minutes alarm and time set register */
#define RETU_REG_RTCCALR 0x06 /* RTC calibration register */
#define RETU_REG_ADCR 0x08 /* ADC result */
+#define RETU_REG_ADCSCR 0x09 /* ADC sample ctrl */
#define RETU_REG_CC1 0x0d /* Common control register 1 */
#define RETU_REG_CC2 0x0e /* Common control register 2 */
#define RETU_REG_CTRL_CLR 0x0f /* Regulator clear register */