DEVICE_FIND_CHILD(9) Device drivers infrastructure DEVICE_FIND_CHILD(9)
NAME device_find_child - device iterator for locating a particular device.
SYNOPSIS struct device * device_find_child(struct device * parent, void * data, int (*match) (struct device *dev, void *data));
ARGUMENTS parent parent struct device
data Data to pass to match function
match Callback function to check device
DESCRIPTION This is similar to the device_for_each_child function above, but it returns a reference to a device that is ´found´ for later use, as determined by the match callback.
The callback should return 0 if the device doesn´t match and non-zero if it does. If the callback returns non-zero and a reference to the current device can be obtained, this function will return to the caller and not iterate over any more devices.
COPYRIGHT Kernel Hackers Manual 2.6. May 2011 DEVICE_FIND_CHILD(9)