devact_level_t
static bool device_pmf_any_suspensor(device_t, devact_level_t);
device_pmf_any_suspensor(device_t dev, devact_level_t depth)
device_activation(device_t dev, devact_level_t level)
bool device_activation(device_t, devact_level_t);
static __inline devact_level_t
devact_level_t pq_actlvl;