device_is_alive
if (peer != NULL && device_is_alive(peer)) {
if (device_is_alive(hconf) == 0)
if (chan->ch_dev == NULL || !device_is_alive(chan->ch_dev))
if (!device_is_alive(parent))
device_is_alive(iface->subdev))
if (!device_is_alive(parent))
if (device_is_alive(child))
int device_is_alive(device_t dev); /* did probe succeed? */
if (!device_is_alive(parent))