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| DRIVER_FIND_DEVICE(9) | Device drivers infrastructure | DRIVER_FIND_DEVICE(9) |
NAME¶
driver_find_device - device iterator for locating a particular device.
SYNOPSIS¶
struct device * driver_find_device(struct device_driver * drv, struct device * start, void * data, int (*match) (struct device *dev, void *data));
ARGUMENTS¶
drv
The device's driver
start
Device to begin with
data
Data to pass to match function
match
Callback function to check device
DESCRIPTION¶
This is similar to the driver_for_each_device 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¶
| January 2017 | Kernel Hackers Manual 4.8. |