bus_find_device
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Name

bus_find_device — device iterator for locating a particular device.

Synopsis

struct device * bus_find_device (struct bus_type * bus,
 struct device * start,
 void * data,
 int (*match) (struct device *dev, void *data));
 

Arguments

bus

bus type

start

Device to begin with

data

Data to pass to match function

match

Callback function to check device

Description

This is similar to the bus_for_each_dev 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, this function will return to the caller and not iterate over any more devices.

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