agsaPhyStopCmd_t
agsaPhyStopCmd_t payload;
si_memset(&payload, 0, sizeof(agsaPhyStopCmd_t));
OSSA_WRITE_LE_32(agRoot, &payload, OSSA_OFFSET_OF(agsaPhyStopCmd_t, tag), tag);
OSSA_WRITE_LE_32(agRoot, &payload, OSSA_OFFSET_OF(agsaPhyStopCmd_t, phyId), (phyId & SM_PHYID_MASK ));