1CLASS_FIND_DEVICE(9)     Device drivers infrastructure    CLASS_FIND_DEVICE(9)
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NAME

6       class_find_device - device iterator for locating a particular device
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SYNOPSIS

9       struct device * class_find_device(struct class * class,
10                                         struct device * start,
11                                         const void * data,
12                                         int (*match) (struct device *, const void *));
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ARGUMENTS

15       class
16           the class we're iterating
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18       start
19           Device to begin with
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21       data
22           data for the match function
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24       match
25           function to check device
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DESCRIPTION

28       This is similar to the class_for_each_dev function above, but it
29       returns a reference to a device that is 'found' for later use, as
30       determined by the match callback.
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32       The callback should return 0 if the device doesn't match and non-zero
33       if it does. If the callback returns non-zero, this function will return
34       to the caller and not iterate over any more devices.
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36       Note, you will need to drop the reference with put_device after use.
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38       fn is allowed to do anything including calling back into class code.
39       There's no locking restriction.
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42Kernel Hackers Manual 3.10         June 2019              CLASS_FIND_DEVICE(9)
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