apm_bios_call_simple
if (apm_bios_call_simple(APM_FUNC_ENABLE_PM, APM_DEVICE_BALL,
if (apm_bios_call_simple(APM_FUNC_ENGAGE_PM, device, enable,
if (apm_bios_call_simple(APM_FUNC_VERSION, 0, *val, &eax, &err))
if (apm_bios_call_simple(APM_FUNC_SET_STATE, what, state, &eax, &err))
ret = apm_bios_call_simple(APM_FUNC_IDLE, 0, 0, &eax, &err);
(void)apm_bios_call_simple(APM_FUNC_BUSY, 0, 0, &dummy, &err);