CM_ASL_TPD
cmsg_quirk(eeepc, CM_ASL_TPD, "TPD");
set_acpi(eeepc, CM_ASL_TPD, eeepc->tpd_led_wk);
return get_acpi(eeepc, CM_ASL_TPD);
if (get_acpi(eeepc, CM_ASL_TPD) == -ENODEV)
if (get_acpi(eeepc, CM_ASL_TPD) >= 0) /* if method is available */