ICCR1_SDAI
if ((riic_readb(riic, RIIC_ICCR1) & (ICCR1_SDAI | ICCR1_SCLI)) !=
(ICCR1_SDAI | ICCR1_SCLI))
return !!(riic_readb(riic, RIIC_ICCR1) & ICCR1_SDAI);