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

6       bus_for_each_drv - driver iterator
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SYNOPSIS

9       int bus_for_each_drv(struct bus_type * bus,
10                            struct device_driver * start, void * data,
11                            int (*fn) (struct device_driver *, void *));
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ARGUMENTS

14       bus
15           bus we're dealing with.
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17       start
18           driver to start iterating on.
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20       data
21           data to pass to the callback.
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23       fn
24           function to call for each driver.
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DESCRIPTION

27       This is nearly identical to the device iterator above. We iterate over
28       each driver that belongs to bus, and call fn for each. If fn returns
29       anything but 0, we break out and return it. If start is not NULL, we
30       use it as the head of the list.
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NOTE

33       we don't return the driver that returns a non-zero value, nor do we
34       leave the reference count incremented for that driver. If the caller
35       needs to know that info, it must set it in the callback. It must also
36       be sure to increment the refcount so it doesn't disappear before
37       returning to the caller.
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40Kernel Hackers Manual 3.10         June 2019               BUS_FOR_EACH_DRV(9)
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