OEMID
#define OEMID(smc,i) oem_id[ID_BYTE0 + i]
#define OEMID(smc,i) smc->hw.oem_id->oi_id[i]
#define OEMID(smc,i) oem_id[i]
#define OEMID(smc,i) smc->hw.oem_id->oi_mark[i]