APM_DEV_DISK 2433 arch/i386/i386/machdep.c apm_set_powstate(APM_DEV_DISK(0xff), APM_DEV_DISK 2437 arch/i386/i386/machdep.c rv = apm_set_powstate(APM_DEV_DISK(0xff), APM_SYS_OFF);