DEVICE_FOR_EACH_CHIL(9) Device drivers infrastructure DEVICE_FOR_EACH_CHIL(9)NAMEdevice_for_each_child - device child iterator.SYNOPSISint device_for_each_child(struct device * parent, void * data, int (*fn) (struct device *dev, void *data));ARGUMENTSparent parent struct device. data data for the callback. fn function to be called for each device.DESCRIPTIONIterate over parent's child devices, and call fn for each, passing it data. We check the return of fn each time. If it returns anything other than 0, we break out and return that value.COPYRIGHTKernel Hackers Manual 2.6. July 2010 DEVICE_FOR_EACH_CHIL(9)