table of contents
| BUS_FIND_DEVICE(9) | Device drivers infrastructure | BUS_FIND_DEVICE(9) |
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¶
| May 2024 | Kernel Hackers Manual 2.6. |