acpi_power_get
if (acpi_power_get(sc->sc_node->ad_handle, &state) != true)
(void)acpi_power_get(sc->sc_node->ad_handle, &state);
if (acpi_power_get(ad->ad_handle, &old) != true) {
if (acpi_power_get(ad->ad_handle, &state) != true)
bool acpi_power_get(ACPI_HANDLE, int *);