device_find_child9
Device iterator for locating a particular device.
Usage
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
Overview
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.
Note
you will need to drop the reference with put_device after use.
Releases
5 releases since Debian 4.0 (Etch); the text changed 4 times.