APM_ALL_DEVICES
regs.ebx = APM_ALL_DEVICES;
status_t status = apm_set_state(APM_ALL_DEVICES, APM_POWER_STATE_OFF);
if (apm_enable_power_management(APM_ALL_DEVICES, true) != B_OK)
if (apm_engage_power_management(APM_ALL_DEVICES, true) != B_OK)