devactive_t
static void audio_activity(device_t, devactive_t);
audio_activity(device_t dv, devactive_t type)
input_activity_handler(device_t dv, devactive_t type)
device_active(device_t dev, devactive_t type)
device_active_register(device_t dev, void (*handler)(device_t, devactive_t))
void (**new_handlers)(device_t, devactive_t);
void (**old_handlers)(device_t, devactive_t);
device_active_deregister(device_t dev, void (*handler)(device_t, devactive_t))
void (**old_handlers)(device_t, devactive_t);
bool device_active(device_t, devactive_t);
void (*)(device_t, devactive_t));
void (*)(device_t, devactive_t));
void (**dv_activity_handlers)(device_t, devactive_t);