CPU_CHR2BLK
#ifdef CPU_CHR2BLK
if (mib[1] == CPU_CHR2BLK) {
case CPU_CHR2BLK:
case CPU_CHR2BLK:
#ifdef CPU_CHR2BLK
mib[1] == CPU_CHR2BLK)
mib[1] = CPU_CHR2BLK;