BUS_FIND_DEVICE
Section: Device drivers infrastructure (9)
Updated: February 2011
Index
Return to Main Contents
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.
COPYRIGHT